100525 + Interview Questions in GENERAL QA IN GENERAL AWARENESS

1.	Two liquids isohexane and 3-methylpentane has boiling point 60°C and 63°C. They can be separated by (1) Simple distillation and isohexane comes out first. (2) Fractional distillation and isohexane comes out first. (3) Simple distillation and 3-Methylpantane comes out first. (4) Fractional distillation and 3-Methylpantane comes out first.
Answer» Answer: (2) Fractional distillation and isohexane comes out first. Liquid having lower boiling point comes out first in fractional distillation. Simple distillation can't be used as boiling point difference is very small.

1.

Two liquids isohexane and 3-methylpentane has boiling point 60°C and 63°C. They can be separated by (1) Simple distillation and isohexane comes out first. (2) Fractional distillation and isohexane comes out first. (3) Simple distillation and 3-Methylpantane comes out first. (4) Fractional distillation and 3-Methylpantane comes out first.

Answer»

Answer: (2) Fractional distillation and isohexane comes out first.

Liquid having lower boiling point comes out first in fractional distillation. Simple distillation can't be used as boiling point difference is very small.

Discussion

2.	A flask contains a mixture of isohexane and 3- methylpentane. One of the liquids boils at 63°C while the other boils at 60°C. What is the best way to seprate the two liquids and which one will be distilled out first? (1) simple distillation, 3-methylpentane (2) simple distillation, isohexane (3) fractional distillation, isohexane(4) fractional distillation, 3-methylpentane
Answer» Answer is (3) fractional distillation, isohexane Liquid which have less difference in boiling point can be isolated by fractional distillation and liquid with less boiling point will be isolated first. Answer is (3) As difference in Boiling point is very less ∴ Fractional distillation Higher boiling point liq. will be obtained as distillate.

2.

A flask contains a mixture of isohexane and 3- methylpentane. One of the liquids boils at 63°C while the other boils at 60°C. What is the best way to seprate the two liquids and which one will be distilled out first? (1) simple distillation, 3-methylpentane (2) simple distillation, isohexane (3) fractional distillation, isohexane(4) fractional distillation, 3-methylpentane

Answer»

Answer is (3) fractional distillation, isohexane

Liquid which have less difference in boiling point can be isolated by fractional distillation and liquid with less boiling point will be isolated first.

Answer is (3)

As difference in Boiling point is very less

∴ Fractional distillation Higher boiling point liq. will be obtained as distillate.

Discussion

3.	Correct order of first ionization energy of the following metals Na, Mg, Al, Si in KJ mol–1 respectively are:(1) 497, 737, 577, 786 (2) 497, 577, 737, 786 (3) 786, 739, 577, 497 (4) 739, 577, 786, 487
Answer» Answer is: (1) 497, 737, 577, 786 Correct order of ionisation energy will be : Na < Al < Mg < Si

3.

Correct order of first ionization energy of the following metals Na, Mg, Al, Si in KJ mol–1 respectively are:(1) 497, 737, 577, 786 (2) 497, 577, 737, 786 (3) 786, 739, 577, 497 (4) 739, 577, 786, 487

Answer»

Answer is: (1) 497, 737, 577, 786

Correct order of ionisation energy will be : Na < Al < Mg < Si

Discussion

4.	Given, for H-atom (bar) v = Rh[1/n12 - 1/n22] Select the correct options regarding this formula for Balmer series.(A) n1 = 2 (B) Ionization energy of H atom can be calculated from above formula. (C) λmaximum is for n2 = 3. (D) If λ decreases then spectrum lines will converse.
Answer» Answer: (A) n₁ = 2 ,(C) λ_maximumis for n₂ = 3.

Discussion

5.

Lab testsCompoundMolisch's testBarfoed testBiuret testA✓xxB✓✓xCxx✓Which of the following options is correct ?ABC(1)LactoseGlucoseAlbumin(2) LactoseGlucoseAlanine(3)LactoseFructoseAlanine(4) GlucoseSucroseAlbumin

Answer»

The answer is (1)

	A	B	C
(1)	Lactose	Glucose	Alanine

Discussion

6.

For the four sets of three measured physical quantities as given below. Which of the following options is correct ?(i) A1 = 24.36, B1 = 0.0724, C1 = 256.2(ii) A2 = 24.44, B2 = 16.082, C2 = 240.2(iii) A3 = 25.2, B3 = 19.2812, C3 = 236.183(iv) A4 = 25, B4 = 236.191, C4 = 19.5

Answer»

A₁ + B₁ + C₁ = 24.36 + 0.0724 + 256.2

= 280.6324

= 280.6 (After rounding off)

A₂ + B₂ + C₂ = 24.44 + 16.082 + 240.2

= 280.722

= 280.7 (After rounding off)

A₃ + B₃ + C₃ = 25.2 + 19.2812 + 236.183

= 280.6642

= 280.7 (After rounding off)

A₄ + B₄ + C₄ = 25 + 236.191 + 19.5

= 280.691

= 281 (After rounding off)

A₄ + B₄ + C₄ > A₃ + B₃ + C₃ = A₂ + B₂ + C₂ > A₁ + B₁ + C₁

	a	b	c	a + b + c = d	Round off
1	220.1	20.4567	40.118	d₁ = 280.6747	280.7
2	218.2	22.3625	40.372	d₂ = 280.9345	280.9
3	221.2	20.2435	39.432	d₃ = 280.8755	280.9
4	221.4	18.3625	40.281	d₄ = 280.0435	280.0

Discussion

7.	Select the correct options : (1) A = CMPS, B = CAverage, C = CRMS (2) A = CAverage, B = CMPS, C = CRMS (3) A = CRMS, B = CAverage, C = CMPS, (4) A = CAverage, B = CMPS, C = CRMS
Answer» The answer is (1) A = C_MPS, B = C_Average, C = C_RMS C_RMS > C_Avg > C_MPS.

7.

Select the correct options : (1) A = CMPS, B = CAverage, C = CRMS (2) A = CAverage, B = CMPS, C = CRMS (3) A = CRMS, B = CAverage, C = CMPS, (4) A = CAverage, B = CMPS, C = CRMS

Answer»

The answer is (1) A = C_MPS, B = C_Average, C = C_RMS

C_RMS > C_Avg > C_MPS.

Discussion

8.	Three elements X, Y and Z are in the 3rd period of the periodic table. The oxides of X, Y and Z, respectively, are basic, amphoteric and acidic. The correct order of the atomic numbers of X, Y and Z is :(1) Z < Y < X (2) X < Z < Y (3) X < Y < Z (4) Y < X < Z
Answer» Answer is (3) X < Y < Z When we are moving from left to right in a periodic table acidic character of oxides increases (as well as atomic number of atom increases) X < Y < Z (acidic character) X < Y < Z (atomic number)

8.

Three elements X, Y and Z are in the 3rd period of the periodic table. The oxides of X, Y and Z, respectively, are basic, amphoteric and acidic. The correct order of the atomic numbers of X, Y and Z is :(1) Z < Y < X (2) X < Z < Y (3) X < Y < Z (4) Y < X < Z

Answer»

Answer is (3) X < Y < Z

When we are moving from left to right in a periodic table acidic character of oxides increases (as well as atomic number of atom increases)

X < Y < Z (acidic character)

X < Y < Z (atomic number)

Discussion

9.	Amongs the following which is redox reaction ?(2) Formation of O3 from O2 (3) Reaction between NaOH and H2SO4 (4) Reaction between AgNO3 and NaCl
Answer» The answer is (1) N₂ + O₂ →2NO 3O₂ →2O₃ 2NaOH + H₂SO₄ →Na₂SO₄ + 2H₂O AgNO₃ + NaCl →NaNO₃ + AgCl

9.

Amongs the following which is redox reaction ?(2) Formation of O3 from O2 (3) Reaction between NaOH and H2SO4 (4) Reaction between AgNO3 and NaCl

Answer»

The answer is (1)

N₂ + O₂ →2NO

3O₂ →2O₃

2NaOH + H₂SO₄ →Na₂SO₄ + 2H₂O

AgNO₃ + NaCl →NaNO₃ + AgCl

Discussion

10.	Which one of the following type of medicines is used for treating acidity.(a) Antibiotic(b) Antacid(c) Analgestic(d) Antiseptic
Answer» (b) Antacid.

Discussion

11.	Amongs the following which will show geometrical isomerism. (a) [Ni(NH3)5Cl]+ (b) [Ni(NH3)4ClBr] (c) [Ni(NH3)3Cl]+ (d) [Ni(NH3)2(NO2)2] (1) b, d (2) a, b (3) a, b & c (4) a, b, c & d
Answer» The answer is (1) b, d Ma₄bc can show 2 G.I. Ma₂b₂can show 2 G.I. (Square planar)

11.

Amongs the following which will show geometrical isomerism. (a) [Ni(NH3)5Cl]+ (b) [Ni(NH3)4ClBr] (c) [Ni(NH3)3Cl]+ (d) [Ni(NH3)2(NO2)2] (1) b, d (2) a, b (3) a, b & c (4) a, b, c & d

Answer»

The answer is (1) b, d

Ma₄bc can show 2 G.I.

Ma₂b₂can show 2 G.I.

(Square planar)

Discussion

12.	Which one of the following amongs each pair will release maximum energy on gaining one electron (A = F, Cl), (B = S, Se), (C = Li, Na) (1) (A) = Cl, (B) = S, (C) = Li (2) (A) = S, (B) = Cl, (C) = Li (3) (A) = Li, (B) = Cl, (C) = S (4) (A) = Cl, (B) = Li, (C) = S
Answer» The answer is (1) (A) = Cl, (B) = S, (C) = Li

Discussion

13.	Within each pair of elements of F & Cl , S & Se, and Li & Na, respectively, the elements that release more energy upon an electron gain are- (1) F, Se and Na (2) F, S and Li (3) Cl, S and Li (4) Cl, Se and Na
Answer» Answer is (3) Cl, S and Li (i) Electron affinity of second period p-block element is less than third period p-block element due to small size of second period p-block element. E.A. order : F < Cl (ii) Down the group electron affinity decreases due to size increases. EA. order : S > Se Li > Na Answer is (3) Cl, S and Li

13.

Within each pair of elements of F & Cl , S & Se, and Li & Na, respectively, the elements that release more energy upon an electron gain are- (1) F, Se and Na (2) F, S and Li (3) Cl, S and Li (4) Cl, Se and Na

Answer»

Answer is (3) Cl, S and Li

(i) Electron affinity of second period p-block element is less than third period p-block element due to small size of second period p-block element.

E.A. order : F < Cl

(ii) Down the group electron affinity decreases due to size increases.

EA. order : S > Se

Li > Na

Answer is (3) Cl, S and Li

Discussion

14.	Which of the following is correct ? X : Generator converts mechanical energy to chemical energy. Y : Motor converts electrical energy to mechanical energy.
Answer» Y : Motor converts electrical energy to mechanical energy.

Discussion

15.	26. In which year is concentration of hydrogen ion the minimum?a) 2002b) 2008c) 2011d) 2005
Answer» Answer: (a) 2002

Discussion

16.	Rearrange the following steps for the formation of Ionic bond. (i) Anion formation (ii) Cation formation (iii) Ionic bond (iv) Electrostatic attraction
Answer» ii, i, iv, iii.

Discussion

17.	A : Ionization energy increases as we go down in a group. B : As we go down in a group atomic radius increases. (a) Both A, R are true; R is correct explanation of A. (b) Both A, R are fale; R is correct explanation of A. (c) Both A, R are false. (d) A is false; R is true.
Answer» (d)A is false; R is true

Discussion

18.	Low oxidation state of metals in their complexes are common when ligands:(A) have good π -accepting character(B) have good σ -donor character(C) are havind good π -donating ability(D) are havind poor σ -donating ability
Answer» Correct option is (A) have good π -accepting character When metal is in low oxidation state then it forms complexes when ligands have good π -accepting character.

18.

Low oxidation state of metals in their complexes are common when ligands:(A) have good π -accepting character(B) have good σ -donor character(C) are havind good π -donating ability(D) are havind poor σ -donating ability

Answer»

Correct option is (A) have good π -accepting character

When metal is in low oxidation state then it forms complexes when ligands have good π -accepting character.

Discussion

19.	Let heat is not lost by any other process between two objects in thermal contact, "Net heat lost (by hot body) = Net heat gain (by cold body)". Above statement indicates a principle. Write the name of that principle.
Answer» Principle of method of mixtures.

Discussion

20.	Temperatures of two cities at different times are given as follows :At 6 AMAt 11.30 AMAt 6 PMA– 3°C300 K5°CB271 K27°C270 KOn the basis of above table, answer the following questions. (a) In which city, the morning temperature at 6' O clock is relatively high ? (b) At what time, both cities are having the equal temperature ?
Answer» (a) 'B' city (b) At 11 : 30 AM.

20.

Temperatures of two cities at different times are given as follows :At 6 AMAt 11.30 AMAt 6 PMA– 3°C300 K5°CB271 K27°C270 KOn the basis of above table, answer the following questions. (a) In which city, the morning temperature at 6' O clock is relatively high ? (b) At what time, both cities are having the equal temperature ?

Answer»

(a) 'B' city

(b) At 11 : 30 AM.

Discussion

21.	How does a strong acid differ from a concentrated acid ?
Answer» The strength of an acid depends upon its dissociation power whereas concentration depends on water content in the acid.

Discussion

22.	Observe the information provided in the table and answer the questions given below it.Element NaCCa PTiNiAtomic Number11 62015 22 28(i) What are the s-block elements in the table ? (ii) What are the 'p' block and 'd' block elements in the table ?
Answer» (i) s-block elements : Na, Ca (ii) 'p' block elements : C, P 'd' block elements : Ti, Ni

22.

Observe the information provided in the table and answer the questions given below it.Element NaCCa PTiNiAtomic Number11 62015 22 28(i) What are the s-block elements in the table ? (ii) What are the 'p' block and 'd' block elements in the table ?

Answer»

(i) s-block elements : Na, Ca

(ii) 'p' block elements : C, P

'd' block elements : Ti, Ni

Discussion

23.	Can you take a photo of a mirage?
Answer» Yes, mirages are the images of real objects. So mirages can be photographed.

Discussion

24.	What is "pka" ? Collect information about it.
Answer» (i) pKa is the negative value of logarithm of dissociation constant of an acid. (ii) pka is a measure of how much an acid dissociates in a solution. (iii) pka = – log10 ka. (iv) The lower the pka value, the stronger is the acid.

24.

What is "pka" ? Collect information about it.

Answer»

(i) pKa is the negative value of logarithm of dissociation constant of an acid.

(ii) pka is a measure of how much an acid dissociates in a solution.

(iii) pka = – log10 ka.

(iv) The lower the pka value, the stronger is the acid.

Discussion

25.	Write the 'Octet rule.' How does Mg (12) get stability while reacting with chlorine as per this rule ?
Answer» Octet Rule : The atoms of elements tend to undergo chemical changes that help to leave their atoms with eight outer - shell electrons. Magnesium atom loses 2 electrons and get 8 electrons in its outermost shell as Neon. So that it gets stability.

25.

Write the 'Octet rule.' How does Mg (12) get stability while reacting with chlorine as per this rule ?

Answer»

Octet Rule : The atoms of elements tend to undergo chemical changes that help to leave their atoms with eight outer - shell electrons.

Magnesium atom loses 2 electrons and get 8 electrons in its outermost shell as Neon. So that it gets stability.

Discussion

26.	Write the 'Octet rule'. How does Mg (12) get stability while reacting with chlorine as per this rule ?
Answer» Octet rule : The atoms of elements tend to undergo chemical changes that help to leave their atoms with eight outer – shell electrons. Magnesium atom loses 2 electrons and get 8 electrons in its outermost shell as Neon. So that it gets stability.

26.

Write the 'Octet rule'. How does Mg (12) get stability while reacting with chlorine as per this rule ?

Answer»

Octet rule : The atoms of elements tend to undergo chemical changes that help to leave their atoms with eight outer – shell electrons.

Magnesium atom loses 2 electrons and get 8 electrons in its outermost shell as Neon. So that it gets stability.

Discussion

27.	There is a long chain containing infinite link. If mass of links of chain is `M,M/2,M/4,M/8.........` then the net force on third link is `:-` A. `2F`B. `F/2`C. `F/4`D. `F/8`
Answer» Correct Answer - D

Discussion

28.	In which of the following processes, convection does not take place primarily?(a) Sea and land breeze(b) Boiling of water(c) Warming of glass of bulb due to filament(d) Heating air around a furnace
Answer» (c) Warming of glass of bulb due to filament In convection process, the heat is transferred by the bodily motion of the heated particles. It is not so in case of warming of glass bulb due to filament heating. In fact, warming of glass bulb is due to radiation.

28.

In which of the following processes, convection does not take place primarily?(a) Sea and land breeze(b) Boiling of water(c) Warming of glass of bulb due to filament(d) Heating air around a furnace

Answer»

(c) Warming of glass of bulb due to filament

In convection process, the heat is transferred by the bodily motion of the heated particles. It is not so in case of warming of glass bulb due to filament heating. In fact, warming of glass bulb is due to radiation.

Discussion

29.	A block `A` of mass `2 kg` is placed over another block `B` of mass `8 kg` and supported by a ledge `L` fixed on block `B` on its smooth surface as its extended part. If a force `F=100 N` is applied on block `B`, it starts moving on rough horizontal surface. Find the force exerted by block `B` on is `25 N` . (Take `g=10m//s^(2)`) A. `15 N`B. `20 N`C. `25 N`D. `35 N`
Answer» Correct Answer - C

Discussion

30.	Why specific heat of gas at constant pressure (CP ) is greater than specific heat at constant volume?
Answer» More heat is required to raise the temperature of gas at constant pressure than at constant volume.

Discussion

31.	In the given figure tension at the mid-point of string `-2`. If mass of string`-1` is `6 kg` and mass of string`-2` is `4 kg`. A. `70 N`B. `60 N`C. `80 N`D. `50 N`
Answer» Correct Answer - C

Discussion

32.	Starting from rest, A lift moves up with an acceleration of `2 ms^(-2)`. In this lift , a ball is dropped from a height of `1.5m` (with respect to floor of lift). The time taken by the ball to reach the floor of the lift is (`g=10 ms^(-2)`)A. `0.3 s`B. `0.2 s`C. `0.16 s `D. `0.5 s`
Answer» Correct Answer - D

Discussion

33.	Assertion`:-` The trajectory of projectile in `XY` plane is quadratic in `x` and linear in `y` if x is independent of `X-`coordinate. Reason `:-` `y-`coordinate of trajetory is independent of `x-`coordinate.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertiion.C. If Assertion is True but the Reason is False.D. If both Assertion & Reason are False
Answer» Correct Answer - C

Discussion

34.	A mass `M` is divided in two parts `m` and `M-m`. Now two parts are connected by an ideal string passing over a pulley as shown in diagram. Find value of `m` such that tension in string is maximum. A. `m=0`B. `m=M/2`C. `m=M/3`D. `m=M/4`
Answer» Correct Answer - B

Discussion

35.	Assertion`:-` For a very small `angle theta` ,`sinthetaapproxtheta`. Reason `:-`At very small angle, arc, subtends a right angle at the centre of arc.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertiion.C. If Assertion is True but the Reason is False.D. If both Assertion & Reason are False
Answer» Correct Answer - C

Discussion

36.	Two masses `m_(1)` and ` m_(2)`. Which are connected with a light string, are placed over a frictionless pulley. This set up is placed over a weighting machine, as shown. Three combination of masses `m_(1)` and `m_(2)` are used, in first case `m_(1)=6 kg` and `m_(2)=2kg` in second case `m_(1)=5kg` and `m_(2)=3kg` and in third case `m_(1)=4kg` and `m_(2)=4kg`.Masses are held stationary initiallly and then released. If the readings of the weighing machine after the release in three cases are `W_(1)`,`W_(2)` and `W_(3)` respectively then`:-` A. `W_(1)gtW_(2)gtW_(3)`B. `W_(1)ltW_(2)ltW_(3)`C. `W_(1)=W_(2)=W_(3)`D. `W_(1)=W_(2)ltW_(3)`
Answer» Correct Answer - B

Discussion

37.	The sprinkling of water reduces slightly the temperature of a closed room because (a) temperature of water is less than that of the room. (b) specific heat of water is high (c) water has large latent heat of vaporisation (d) water is a bad conductor of heat
Answer» (c) water has large latent heat of vaporisation When water is sprinkled over a large area, evaporation takes place. As the latent heat of vaporisation is large cooling takes place.

37.

The sprinkling of water reduces slightly the temperature of a closed room because (a) temperature of water is less than that of the room. (b) specific heat of water is high (c) water has large latent heat of vaporisation (d) water is a bad conductor of heat

Answer»

(c) water has large latent heat of vaporisation

When water is sprinkled over a large area, evaporation takes place. As the latent heat of vaporisation is large cooling takes place.

Discussion

38.	Two solid spheres of the same material have the same radius but one is hollow while the other is solid. Both spheres are heated to same temperature. Then (a) the solid sphere expands more (b) the hollow sphere expands more (c) expansion is same for both (d) nothing can be solid about their relative expansion if their masses are not given
Answer» Correct answer is (c) expansion is same for both

Discussion

39.	There is a hole in metal disc. What happens to the size of metal disc if the metal disc is heated?
Answer» The size of hole increases.

Discussion

40.	For measuring temperatures in the range of 2000°C, we should employ (a) gas thermometer (b) platinum-rhodium thermometer (c) barometer (d) pyrometer
Answer» Correct answer is (d) pyrometer

Discussion

41.	In a given figure the acceleration of `M` is `(g=10ms^(-2))` A. `20/3ms^(-2)`B. `17 ms^(-2)`C. `(80)/(3)ms^(-2)`D. None of these
Answer» Correct Answer - C

Discussion

42.	A uniform rod of mass `M` and length `L` lies flat on a frictionless horizantal surface. Two forces `F` and `2F` are applied along the length of the rod as shown. The tension in the rod at point P is A. `F`B. `3F`C. `(5F)/(4)`D. `(7F)/(4)`
Answer» Correct Answer - D

Discussion

43.	Two block `A` and `B` are as shown in figure. The minimum horizantal force `F` applied to the block `B` for which slipping begins between `B` and ground is `:` A. `20 N`B. `120 N`C. `150 N`D. `170 N`
Answer» Correct Answer - C

Discussion

44.	A train goes through a `1100 m` long tunnel at a constant speed of `72 km//h`. The last compartment comes out one minute after the entry of engine in the tunnel. Find the length of train (including engine).A. `80 m`B. `100 m`C. `1200m`D. `1000m`
Answer» Correct Answer - B `t=60 sec` Total distance travelled `=1100+L` Speed `=72 (km)//(hr)=20 m//sec` `rArr60=(1100+L)/(20)rArr1200=1100+L` `rArrL=100 m`

Discussion

45.	CO2SiO2SnO2CaO
Answer» Correct Answer: SnO₂ Explanation: CaO — basic CO₂ — acidic SiO₂ — weakly acidic SnO₂ — amphoteric The above reaction mentioned as SnO₂+ 2NaOH → Na₂SnO₃ + H₂OSnO₂ + 4HCl → SnCl₄+2H₂O

45.

CO2SiO2SnO2CaO

Answer»

Correct Answer:

SnO₂

Explanation:

CaO — basic

CO₂ — acidic

SiO₂ — weakly acidic

SnO₂ — amphoteric

The above reaction mentioned as

SnO₂+ 2NaOH → Na₂SnO₃ + H₂OSnO₂ + 4HCl → SnCl₄+2H₂O

Discussion

46.	Ensheathing of muscles is called
Answer» Ensheathing of muscles is called Fascia Explanation: Ensheathing bans of connective tissue is called 'fascia' while individual muscle cells are called 'muscle fibres'.

46.

Ensheathing of muscles is called

Answer»

Ensheathing of muscles is called Fascia

Explanation:

Ensheathing bans of connective tissue is called 'fascia' while individual muscle cells are called 'muscle fibres'.

Discussion

47.	Which of the folllowing statements regarding the skeleton are correct ? Please select all that apply. (a) The shaft of a long bone is called the diaphysis. (b) The `"oraganic"` `"matrix"` of bone is secreted by chondroblasts. (c) Dividing cartilage cells are situated in the marrow cavity of long bones (d) Bone remodelling is a function of the activty marrow cavity of long bones (e) The long bones develop from fibrous connective tissue (f) Most bones are formed by endochondral ossification of a hyaline cartilage model (g) The principal inorganic components of bones are calcium and phosphates.A. `abcd`B. `adfg`C. `bdfg`D. `abdc`
Answer» Correct Answer - B

Discussion

48.	The articular cartilage is characterized by all of the following features except `:-`A. It is devoid of perichondriumB. It has a rich blood supplyC. It is avascularD. It lacks the capacity to regenerate
Answer» Correct Answer - B

Discussion

49.	Loose connective tissue is made of which three essential components `:-`A. Cells ground substance and carbohydrates fibersB. Cell ground substance and protein fibersC. Collagen, ground substance and protein fibersD. Matix , ground substance and fluid.
Answer» Correct Answer - B

Discussion

50.	Rate of respiration is directly affected byA. Concentration of carbon dioxideB. Oxygen in tracheaC. Concentration of oxygenD. Diaphragm expansion
Answer» Correct Answer - A Rate of respiration is directly affected by concentration of carbon dioxide.

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Correct order of first ionization energy of the following metals Na, Mg, Al, Si in KJ mol–1 respectively are:(1) 497, 737, 577, 786 (2) 497, 577, 737, 786 (3) 786, 739, 577, 497 (4) 739, 577, 786, 487

Given, for H-atom (bar) v = Rh[1/n12 - 1/n22] Select the correct options regarding this formula for Balmer series.(A) n1 = 2 (B) Ionization energy of H atom can be calculated from above formula. (C) λmaximum is for n2 = 3. (D) If λ decreases then spectrum lines will converse.

Lab testsCompoundMolisch's testBarfoed testBiuret testA✓xxB✓✓xCxx✓Which of the following options is correct ?ABC(1)LactoseGlucoseAlbumin(2) LactoseGlucoseAlanine(3)LactoseFructoseAlanine(4) GlucoseSucroseAlbumin

For the four sets of three measured physical quantities as given below. Which of the following options is correct ?(i) A1 = 24.36, B1 = 0.0724, C1 = 256.2(ii) A2 = 24.44, B2 = 16.082, C2 = 240.2(iii) A3 = 25.2, B3 = 19.2812, C3 = 236.183(iv) A4 = 25, B4 = 236.191, C4 = 19.5

Select the correct options : (1) A = CMPS, B = CAverage, C = CRMS (2) A = CAverage, B = CMPS, C = CRMS (3) A = CRMS, B = CAverage, C = CMPS, (4) A = CAverage, B = CMPS, C = CRMS

Three elements X, Y and Z are in the 3rd period of the periodic table. The oxides of X, Y and Z, respectively, are basic, amphoteric and acidic. The correct order of the atomic numbers of X, Y and Z is :(1) Z &lt; Y &lt; X (2) X &lt; Z &lt; Y (3) X &lt; Y &lt; Z (4) Y &lt; X &lt; Z

Amongs the following which is redox reaction ?(2) Formation of O3 from O2 (3) Reaction between NaOH and H2SO4 (4) Reaction between AgNO3 and NaCl

Which one of the following type of medicines is used for treating acidity.(a) Antibiotic(b) Antacid(c) Analgestic(d) Antiseptic

Amongs the following which will show geometrical isomerism. (a) [Ni(NH3)5Cl]+ (b) [Ni(NH3)4ClBr] (c) [Ni(NH3)3Cl]+ (d) [Ni(NH3)2(NO2)2] (1) b, d (2) a, b (3) a, b &amp; c (4) a, b, c &amp; d

Which one of the following amongs each pair will release maximum energy on gaining one electron (A = F, Cl), (B = S, Se), (C = Li, Na) (1) (A) = Cl, (B) = S, (C) = Li (2) (A) = S, (B) = Cl, (C) = Li (3) (A) = Li, (B) = Cl, (C) = S (4) (A) = Cl, (B) = Li, (C) = S

Within each pair of elements of F &amp; Cl , S &amp; Se, and Li &amp; Na, respectively, the elements that release more energy upon an electron gain are- (1) F, Se and Na (2) F, S and Li (3) Cl, S and Li (4) Cl, Se and Na

Which of the following is correct ? X : Generator converts mechanical energy to chemical energy. Y : Motor converts electrical energy to mechanical energy.

26. In which year is concentration of hydrogen ion the minimum?a) 2002b) 2008c) 2011d) 2005

Rearrange the following steps for the formation of Ionic bond. (i) Anion formation (ii) Cation formation (iii) Ionic bond (iv) Electrostatic attraction

A : Ionization energy increases as we go down in a group. B : As we go down in a group atomic radius increases. (a) Both A, R are true; R is correct explanation of A. (b) Both A, R are fale; R is correct explanation of A. (c) Both A, R are false. (d) A is false; R is true.

Low oxidation state of metals in their complexes are common when ligands:(A) have good π -accepting character(B) have good σ -donor character(C) are havind good π -donating ability(D) are havind poor σ -donating ability

Let heat is not lost by any other process between two objects in thermal contact, "Net heat lost (by hot body) = Net heat gain (by cold body)". Above statement indicates a principle. Write the name of that principle.

How does a strong acid differ from a concentrated acid ?

Observe the information provided in the table and answer the questions given below it.Element NaCCa PTiNiAtomic Number11 62015 22 28(i) What are the s-block elements in the table ? (ii) What are the 'p' block and 'd' block elements in the table ?

Can you take a photo of a mirage?

What is "pka" ? Collect information about it.

Write the 'Octet rule.' How does Mg (12) get stability while reacting with chlorine as per this rule ?

Write the 'Octet rule'. How does Mg (12) get stability while reacting with chlorine as per this rule ?

There is a long chain containing infinite link. If mass of links of chain is `M,M/2,M/4,M/8.........` then the net force on third link is `:-` A. `2F`B. `F/2`C. `F/4`D. `F/8`

In which of the following processes, convection does not take place primarily?(a) Sea and land breeze(b) Boiling of water(c) Warming of glass of bulb due to filament(d) Heating air around a furnace

Why specific heat of gas at constant pressure (CP ) is greater than specific heat at constant volume?

In the given figure tension at the mid-point of string `-2`. If mass of string`-1` is `6 kg` and mass of string`-2` is `4 kg`. A. `70 N`B. `60 N`C. `80 N`D. `50 N`

Starting from rest, A lift moves up with an acceleration of `2 ms^(-2)`. In this lift , a ball is dropped from a height of `1.5m` (with respect to floor of lift). The time taken by the ball to reach the floor of the lift is (`g=10 ms^(-2)`)A. `0.3 s`B. `0.2 s`C. `0.16 s `D. `0.5 s`

A mass `M` is divided in two parts `m` and `M-m`. Now two parts are connected by an ideal string passing over a pulley as shown in diagram. Find value of `m` such that tension in string is maximum. A. `m=0`B. `m=M/2`C. `m=M/3`D. `m=M/4`

The sprinkling of water reduces slightly the temperature of a closed room because (a) temperature of water is less than that of the room. (b) specific heat of water is high (c) water has large latent heat of vaporisation (d) water is a bad conductor of heat

There is a hole in metal disc. What happens to the size of metal disc if the metal disc is heated?

For measuring temperatures in the range of 2000°C, we should employ (a) gas thermometer (b) platinum-rhodium thermometer (c) barometer (d) pyrometer

In a given figure the acceleration of `M` is `(g=10ms^(-2))` A. `20/3ms^(-2)`B. `17 ms^(-2)`C. `(80)/(3)ms^(-2)`D. None of these

A uniform rod of mass `M` and length `L` lies flat on a frictionless horizantal surface. Two forces `F` and `2F` are applied along the length of the rod as shown. The tension in the rod at point P is A. `F`B. `3F`C. `(5F)/(4)`D. `(7F)/(4)`

Two block `A` and `B` are as shown in figure. The minimum horizantal force `F` applied to the block `B` for which slipping begins between `B` and ground is `:` A. `20 N`B. `120 N`C. `150 N`D. `170 N`

A train goes through a `1100 m` long tunnel at a constant speed of `72 km//h`. The last compartment comes out one minute after the entry of engine in the tunnel. Find the length of train (including engine).A. `80 m`B. `100 m`C. `1200m`D. `1000m`

CO2SiO2SnO2CaO

Ensheathing of muscles is called

The articular cartilage is characterized by all of the following features except `:-`A. It is devoid of perichondriumB. It has a rich blood supplyC. It is avascularD. It lacks the capacity to regenerate

Loose connective tissue is made of which three essential components `:-`A. Cells ground substance and carbohydrates fibersB. Cell ground substance and protein fibersC. Collagen, ground substance and protein fibersD. Matix , ground substance and fluid.

Rate of respiration is directly affected byA. Concentration of carbon dioxideB. Oxygen in tracheaC. Concentration of oxygenD. Diaphragm expansion

Three elements X, Y and Z are in the 3rd period of the periodic table. The oxides of X, Y and Z, respectively, are basic, amphoteric and acidic. The correct order of the atomic numbers of X, Y and Z is :(1) Z < Y < X (2) X < Z < Y (3) X < Y < Z (4) Y < X < Z

Amongs the following which will show geometrical isomerism. (a) [Ni(NH3)5Cl]+ (b) [Ni(NH3)4ClBr] (c) [Ni(NH3)3Cl]+ (d) [Ni(NH3)2(NO2)2] (1) b, d (2) a, b (3) a, b & c (4) a, b, c & d

Within each pair of elements of F & Cl , S & Se, and Li & Na, respectively, the elements that release more energy upon an electron gain are- (1) F, Se and Na (2) F, S and Li (3) Cl, S and Li (4) Cl, Se and Na