100525 + Interview Questions in GENERAL QA IN GENERAL AWARENESS

1.	Given the following reaction and equilibrium constant `CO(g)+(1)/(2)O_(2)(g)hArrCO_(2)(g),K_(c)=1.1xx10^(11)` So at equilibrium select the correct response from below:-A. The net driving force for the reaction will always be left to right because the equilibrium constant is very largeB. The rate of forward reaction will always be greater than the rate of the reverse reaction because the equilibrium constant is so largeC. For a reaction mixture containing equilibrium concentrations of the three components, the forward and reverse rates will both go to zeroD. All responses above are incorrect
Answer» Correct Answer - D

Discussion

2.	In aqueous solution an amino acid exits as a). Cation b). Anion c). Zwitterion d). Neutral molecule
Answer» c). Zwitterion

Discussion

3.	What is fibrous protein
Answer» A fibrous protein is a thread like which may occur singly or in groups. They are tough, non-enzymatic and structural proteins. It is insoluble in water e.g., Keratin. Some fibrous protein is contractile protein found in myosin of muscles and connective tissue (tendons, bones, and cartilage) are collagen.

Discussion

4.	Approximate p.H,0.1M aqueous `H_(2)S` solution when `K_(1)` and `K_(2)` for `H_(2)S` at `25^(@)C` are `1xx10^(-7)` and `1.3xx10^(-13)` respectively:-A. 4B. 5C. 6D. 8
Answer» Correct Answer - A

Discussion

5.	In which of the following C = O group is present ?(A) Ether (B) Alcohol (C) Ketone (D) Amine
Answer» Correct answer is (C) Ketone

Discussion

6.	Glucose on oxidation with Br2 water gives a). Gluconic acid b). Tartaric acid c). Saccharic acid d). Meso ‐oxalic acid
Answer» a). Gluconic acid

Discussion

7.	The acidic hydrolysis of ether (X) shown below is fastest when(A) one phenyl group is replaced by a methyl group. (B) one phenyl group is replaced by a para-methoxyphenyl group. (C) two phenyl groups are replaced by two para-methoxyphenyl groups. (D) no structural change is made to X
Answer» (C) two phenyl groups are replaced by two para-methoxyphenyl groups. When two phenyl groups are replaced by two para methoxy group, carbocation formed will be more stable

7.

The acidic hydrolysis of ether (X) shown below is fastest when(A) one phenyl group is replaced by a methyl group. (B) one phenyl group is replaced by a para-methoxyphenyl group. (C) two phenyl groups are replaced by two para-methoxyphenyl groups. (D) no structural change is made to X

Answer»

(C) two phenyl groups are replaced by two para-methoxyphenyl groups.

When two phenyl groups are replaced by two para methoxy group, carbocation formed will be more stable

Discussion

8.	Matching of polymers:(Column I)(Column II)(A) Nylon(i) Thermosetting(B) Bakelite(ii) Thermoplastic(C) Polythene(iii) Elastomer(D) Natural rubber(iv) Fibers(a) A → (i); B → (iii); C → (ii); D → (iv)(b) A → (iv); B → (i); C → (ii); D → (iii)(c) A → (iii); B → (ii); C → (iv); D → (1)(d) A → (ii); B→ (i); C → (iv); D → (iii)
Answer» (b) A → (iv); B → (i); C → (ii); D → (iii) Nylon ⇒ Fibers Bakelite ⇒Thermosetting Polythene ⇒Thermoplastic Natural rubber ⇒ Elastomer

8.

Matching of polymers:(Column I)(Column II)(A) Nylon(i) Thermosetting(B) Bakelite(ii) Thermoplastic(C) Polythene(iii) Elastomer(D) Natural rubber(iv) Fibers(a) A → (i); B → (iii); C → (ii); D → (iv)(b) A → (iv); B → (i); C → (ii); D → (iii)(c) A → (iii); B → (ii); C → (iv); D → (1)(d) A → (ii); B→ (i); C → (iv); D → (iii)

Answer»

(b) A → (iv); B → (i); C → (ii); D → (iii)

Nylon ⇒ Fibers

Bakelite ⇒Thermosetting

Polythene ⇒Thermoplastic

Natural rubber ⇒ Elastomer

Discussion

9.	When 2 moles of HCl is added to 1 lit. of an acidic buffer solution, its pH changes from 3.4 to 3.9. Find its buffer capacity.
Answer» Buffer capacity = 2/0.5 = 4

Discussion

10.	How to calculate pH of different types of solutions?
Answer» Different Types of solutions : (a) Strong acid solution : (i) If concentration is greater than 10^–6 M. In this case H⁺ ions coming from water can be neglected, so [H⁺] = normality of strong acid solution (ii) If concentration is less than 10^–6 M In this case H⁺ ions coming from water cannot be neglected. So [H⁺] = normality of strong acid + H⁺ ions coming from water in presence of this strong acid. (b) Strong base solution : Calculate the [OH^– ] which will be equal to normality of the strong base solution and then use K_w = [H⁺ ] × [OH^–] = 10^–14, to calculate [H⁺]

10.

How to calculate pH of different types of solutions?

Answer»

Different Types of solutions :

(a) Strong acid solution :

(i) If concentration is greater than 10^–6 M.

In this case H⁺ ions coming from water can be neglected, so [H⁺] = normality of strong acid solution

(ii) If concentration is less than 10^–6 M

In this case H⁺ ions coming from water cannot be neglected. So [H⁺] = normality of strong acid + H⁺ ions coming from water in presence of this strong acid.

(b) Strong base solution :

Calculate the [OH^– ] which will be equal to normality of the strong base solution and then use K_w = [H⁺ ] × [OH^–] = 10^–14, to calculate [H⁺]

Discussion

11.	On reaction with stronger oxidizing agent like KIO4, hydrogen peroxide oxidizes with the evolution of O2. The oxidation number of I in KIO4 changes to ______.
Answer» Correct answer is 5 \(IO^-_4+H_ 2O_ 2→IO^-_ 3+O_2\)

11.

On reaction with stronger oxidizing agent like KIO4, hydrogen peroxide oxidizes with the evolution of O2. The oxidation number of I in KIO4 changes to ______.

Answer»

Correct answer is 5

\(IO^-_4+H_ 2O_ 2→IO^-_ 3+O_2\)

Discussion

12.	Which set of quantum number represent degenerate orbital(a) n = 3, l = 2, m = 0, s = \(\frac{-1}2\) & n = 3, l = 2, m = -1 s = \(\frac{+1}2\)(b) n = 2, l = 1, m = 1, s = \(\frac{-1}2\) & n = 3, l = 1, m = 1 s = \(\frac{+1}2\)(c) n = 4, l = 2, m = -1, s = \(\frac{1}2\) & n = 3, l = 2, m = -1 s = \(\frac{1}2\)(1) a(2) b(3) c(4) a, b
Answer» Correct option is (1) a The orbitals with same n & l value but with different m value are degenerate.

12.

Which set of quantum number represent degenerate orbital(a) n = 3, l = 2, m = 0, s = \(\frac{-1}2\) & n = 3, l = 2, m = -1 s = \(\frac{+1}2\)(b) n = 2, l = 1, m = 1, s = \(\frac{-1}2\) & n = 3, l = 1, m = 1 s = \(\frac{+1}2\)(c) n = 4, l = 2, m = -1, s = \(\frac{1}2\) & n = 3, l = 2, m = -1 s = \(\frac{1}2\)(1) a(2) b(3) c(4) a, b

Answer»

Correct option is (1) a

The orbitals with same n & l value but with different m value are degenerate.

Discussion

13.	The boiling point of a 0.2 m solution of a non-electrolyte in water is : (Kb for water = 0.52 K kg mol-1)(A) 100°C(B) 100.52°C(C) 100.104°C(D) 100.26°C
Answer» Option : (C) 100.104°C We know that, ΔT_b = K_bm m = molality. ΔT_b = 0.52 kg mol^-1 x 0.2 mol/kg ΔT_b = 0.104 K It means - Boiling point increases by 0.104 K or 0.104°C Hence, The boiling point of 0.2 m solution of a non-electrolyte in water will be 100.104°C

13.

The boiling point of a 0.2 m solution of a non-electrolyte in water is : (Kb for water = 0.52 K kg mol-1)(A) 100°C(B) 100.52°C(C) 100.104°C(D) 100.26°C

Answer»

Option : (C) 100.104°C

We know that,

ΔT_b = K_bm

m = molality.

ΔT_b = 0.52 kg mol^-1 x 0.2 mol/kg

ΔT_b = 0.104 K

It means -

Boiling point increases by 0.104 K or 0.104°C

Hence,

The boiling point of 0.2 m solution of a non-electrolyte in water will be 100.104°C

Discussion

14.	Nucleic acids are polymer of :(A) amino acids(B) nucleosides(C) nucleotides(D) glucose
Answer» Option : (C) nucleotides Nuclelic acids are polymer of Nucleotides.

14.

Nucleic acids are polymer of :(A) amino acids(B) nucleosides(C) nucleotides(D) glucose

Answer»

Option : (C) nucleotides

Nuclelic acids are polymer of Nucleotides.

Discussion

15.	Name the metal refined by Mond’s process.
Answer» The metal refined by Mond’s process is Nickel.

Discussion

16.	Buffering action of a mixture of CH3COOH and CH3COONa is maximum when the ratio of salt to acid is equal to : (A) 1.0 (B) 100.0 (C) 10.0 (D) 0.1
Answer» Correct option: (A) 1.0 Explanation: The buffer action of a buffer mixture is effective in the pH range pK_a ± 1. It is maximum when pH = pK_a

16.

Buffering action of a mixture of CH3COOH and CH3COONa is maximum when the ratio of salt to acid is equal to : (A) 1.0 (B) 100.0 (C) 10.0 (D) 0.1

Answer»

Correct option: (A) 1.0

Explanation:

The buffer action of a buffer mixture is effective in the pH range pK_a ± 1. It is maximum when pH = pK_a

Discussion

17.	Carded slivers are subjected to combing process, which is further delivered to ________ and here diameter of material is reduced and length of the material is increased. a. Roving frame b. Ring spinning frame c. Drawing frame d. Spinneret
Answer» a. Roving frame Carded slivers are subjected to combing process, which is further delivered to Roving frame and here diameter of material is reduced and length of the material is increased.

17.

Carded slivers are subjected to combing process, which is further delivered to ________ and here diameter of material is reduced and length of the material is increased. a. Roving frame b. Ring spinning frame c. Drawing frame d. Spinneret

Answer»

a. Roving frame

Carded slivers are subjected to combing process, which is further delivered to Roving frame and here diameter of material is reduced and length of the material is increased.

Discussion

18.	When a water is heated from 0 degree celcius to 4 degree celcius then cp=cv or cp
Answer» I think cp= cv ( cp- cv= nR , at 4 degree Celsius , water has a maximum density so n=0)

Discussion

19.	Why does hydrogen occur in a diatomic from rather than in a monoatomic form under normal conditions?
Answer» Hydrogen atom has only one elecron and thus of attain stable inert gas configuration of helium, it needs one more electron. Hence, to achieve stable inert has configuration of helium, it shares its single electron with electron of other hydrogen and thus form a stable diatomic molecule.

Discussion

20.	Which of the following lanthanoid ions, has zero magnetic moment ? [Ce (z = 58), Sm (z = 62), Eu (z = 63), Yb (z = 70)]`A. `Sm^(2+)`B. `Eu^(2+)`C. `Yb^(2+)`D. `Ce^(2+)`
Answer» Correct Answer - C `{:(Sm^(2+) [(Xe) 4F^(6)],,Eu^(2+) [(Xe) 4F^(7)],),(Yb^(2+)[(Xe)4F^(14)],,Ce^(2+)[(Xe)4F^(1)5d^(1)],):}`

Discussion

21.	Which molecule has longest carbon chain ? (a) Neopentane (b) Isopentane (c) Neohexane (d) n- pentane
Answer» n- pentane molecule has longest carbon chain.

Discussion

22.	Which molecule all the least C-C distance ? (a) C2H6 (b) C2H4 (c) C2H2 (d) C4H8
Answer» C₂H₂ molecule all the least C-C distance.

Discussion

23.	What is the value of C – C bond length in ethyne ? (a) 154 pm (b) 139 pm (c) 134 pm (d) 120 pm
Answer» 120 pm value of C – C bond length in ethyne.

Discussion

24.	Difference between Hard Bases and Soft Bases.
Answer» Hard Bases : (i) The ligands which preferably combine with hard acids are called hard bases. Ex: NH₃, R₃N, H₂O and F^– etc. (ii) Hard bases (ligands) are also small, not very polarisable and having high electronegativity. Soft Bases : (i) The ligands which preferably combine with soft acids are called soft bases. Ex: R₃P (phospines), R₂S (thioethers), CO, CN^–, H^– etc. (ii) Soft bases (ligands) are large sized, more polarisable and having low electronegativity.

24.

Difference between Hard Bases and Soft Bases.

Answer»

Hard Bases :

(i) The ligands which preferably combine with hard acids are called hard bases.

Ex: NH₃, R₃N, H₂O and F^– etc.

(ii) Hard bases (ligands) are also small, not very polarisable and having high electronegativity.

Soft Bases :

(i) The ligands which preferably combine with soft acids are called soft bases.

Ex: R₃P (phospines), R₂S (thioethers), CO, CN^–, H^– etc.

(ii) Soft bases (ligands) are large sized, more polarisable and having low electronegativity.

Discussion

25.	what is the chemical formula of calomel?
Answer» Hg2Cl2 is he chemical formula of calomel Calomel with chemical formula Hg2Cl2, also called mercurous chloride or mercury(I) chloride is a very heavy, soft, white, odourless, and tasteless halide mineral formed by the alteration of other mercury minerals, such as cinnabar or amalgams.

Discussion

26.	State the properties of water.
Answer» Amphoteric (amphiprotic) Acid/Base nature : Water - an acid as well as base according to Bronsted - Lowry theory but according to Lewis concept it can only be taken as base only. In pure water [H⁺] = [OH^–] so it is neutral.

26.

State the properties of water.

Answer»

Amphoteric (amphiprotic) Acid/Base nature :

Water - an acid as well as base according to Bronsted - Lowry theory but according to Lewis concept it can only be taken as base only.

In pure water [H⁺] = [OH^–] so it is neutral.

Discussion

27.	How will the pH of milk change as it turns into curd?
Answer» When milk is turned into curd then its pH value will decrease and will become less than 7 due to the production of lactic acid in curd which is acidic in nature.

Discussion

28.	In a bakery, baking powder was not added while preparing cake. The cake obtained was hard and small in size. What is the reason for this.
Answer» Baking powder is used for baking cakes. It contains sodium hydrogen carbonate, which breaks down when heated to form CO₂ gas. The CO₂ help to make the cakes light and fluffy.

Discussion

29.	Trachea divide at the level of :-A. `T_(3)`B. `L_(3)`C. `T_(5)`D. `L_(5)`
Answer» Correct Answer - A

Discussion

30.	An ore like zinc blends is concentrated byA. Froth floatationB. Magnetic separationC. LeachingD. Washing with water
Answer» Correct Answer - A Froth floatation because it is sulphide ore `(ZnS)`

Discussion

31.	Copper pyrites are concentrated byA. Electromagnetic methodB. Gravity methodC. Froth floatation processD. All of the above methods
Answer» Correct Answer - C Sulphides aore are always concentrated by froth floatation process

Discussion

32.	Select the incorrect statement :-A. External nostrils leads to nasal chamber through the Nasal passage.B. Larynx is a cartilaginous sound box.C. The pharynx open through the larynx region into the trachea.D. During swallowing glottis can be covered thin collagenous flap called epiglottis.
Answer» Correct Answer - A

Discussion

33.	Moist skin help in respiration in :-A. AnnelidsB. AmphibiansC. Both (1) and (2)D. Mammals
Answer» Correct Answer - A

Discussion

34.	Simple organisms like sponges and cnideria circulate_____from their surrounding through their body cavities.A. LymphB. BloodC. Colourless plasmaD. Water
Answer» Correct Answer - A

Discussion

35.	Vascularized bags present in Terrestrial animals helps in :-A. Pulmonary respirationB. Branchial respirationC. Cutaneous respirationD. Pharyngeal respiration
Answer» Correct Answer - A

Discussion

36.	Special fluid helps in transportation of substances in complex animals is/are :-A. Blood and lymphB. Only bloodC. Only lymphD. RBC, WBC and platelets
Answer» Correct Answer - A

Discussion

37.	Any material entering the trachea causes :-A. vimitingB. CoughingC. SneezingD. Regurgitation
Answer» Correct Answer - A

Discussion

38.	To balance the bicarbonate ion loss in RBC the chloride ions move into RBC, it is known as :-A. Chloride shiftB. Hamburger phenomenonC. Bohr effectD. Both (1) and (2)
Answer» Correct Answer - A

Discussion

39.	Which compounds does not contain OH group
Answer» Ammonia instead of not having a hydroxyl group is a base because it forms OH- ions when added to water as it ionizes to form ammonium ions and hydroxide ions after forming ammonium hydroxide when mixed in water. Ammonia is a base but doesn't contain any hydroxyl group because it forms OH- ions when it is added to water.

Discussion

40.	Bohr effect is :-A. The effect of `Co_(2)` on haemoglobinB. The effect of `CO_(2)` on oxyhaemoglobinC. The effect of `CO_(2)` on RBCD. The effect of `O_(2)` on haemoglobin
Answer» Correct Answer - A

Discussion

41.	Which of the following pairs of reaction occurs most frquently in the blood surrounding alveoli ?A. `Hb + O_(2) rarr HbO_(2) and HHb rarr Hb + H^(+)`B. `HbO_(2) rarr Hb + O_(2)and Hb + H^(+) rarr HHb`C. `H^(+) + Hb rarr HHb and H_(2)CO_(3) rarrHCO_(3) + H^(+)`D. `CO_(2) + H_(2)O rarr H_(2)CO_(3) and H_(2)CO_(3) rarr HCO_(3) + H^(+)`
Answer» Correct Answer - A

Discussion

42.	Vocal cords occur in :-A. TracheaB. LarynxC. GlottisD. Bronchiai tube
Answer» Correct Answer - A

Discussion

43.	Trachea is supported by :-A. Hyoid apparatusB. PalateC. CartilageD. All
Answer» Correct Answer - A

Discussion

44.	Pulmonary surfactant is :-A. Amino acidB. SteriodC. PhospholipidD. Glycolipid
Answer» Correct Answer - A

Discussion

45.	Which of the following has value 1:A. `tan45^circ`B. `sin90^circ`C. `cos90^circ`D. `cos0^circ`
Answer» Correct Answer - A::B::D `tan45^@=1` `sin90^@=1` `cos0^@=1`

Discussion

46.	Which of the following has value zero:A. `sin0^circ`B. `tan0^circ`C. `cos0^circ`D. `cot0^circ`
Answer» Correct Answer - A::B `sin^@=0` `tan0^@=0`

Discussion

47.	Selecthe correct statement(s):A. Physical chemistryB. Physical ChemistryC. Cation and anion are called basic and acidic radical respectivelyD. `[NiCl_4]^(2-)` is alow spin complex.
Answer» Correct Answer - C

Discussion

48.	The end product of the following reactions are A. yellow ppt. of `CHl_(3)`, B. yellow ppt of `CHl_(3)`, C. yellow ppt of `CHl_(3)`, D. yellow ppt of `CHl_(3)`,
Answer» Correct Answer - A::B Ionization energy : `Ga lt Tl` Electron gain enthalpy : `S gt Se gt O`

Discussion

49.	A buffer solution can be prepared from a mixture ofA. `NH_(4)Cl` and NaOH in 2 : 1 mole ratioB. `CH_(3)COONa` and HCl in 1 : 1 mole ratioC. `CH_(3)COONa` and NaOH in 2 : 1 mole ratioD. `CH_(3)COONa` and HCl in 1 : 2 mole ratio
Answer» Correct Answer - C `[H^(+)=alphaC=10^(-2)` `alpha=0.1` `P = i " "c " "R" " T = 1.1 xx0.1xx24.63 = 2.7 " atm"`

Discussion

50.	When 1-butyne is treated with aqueous `H_(2)SO_(4)` in presence of `HgSO_(4)`, the major product isA. ButanalB. ButanoneC. ButenolD. Buten-2-ol
Answer» Correct Answer - D `{:(La^(3+):[Xe]5d^(0)6s^(0)),(Lu^(3+):[Xe]4f^(14)5d^(0)6s^(0)),(Ce^(4+):[Xe]4f^(0)5d^(0)6s^(0)):}}mu_("eff")=0` `Nd^(3+):[Xe]4f^(3)}mu_("eff")ne 0`

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

In aqueous solution an amino acid exits as a). Cation b). Anion c). Zwitterion d). Neutral molecule

What is fibrous protein

Approximate p.H,0.1M aqueous `H_(2)S` solution when `K_(1)` and `K_(2)` for `H_(2)S` at `25^(@)C` are `1xx10^(-7)` and `1.3xx10^(-13)` respectively:-A. 4B. 5C. 6D. 8

In which of the following C = O group is present ?(A) Ether (B) Alcohol (C) Ketone (D) Amine

Glucose on oxidation with Br2 water gives a). Gluconic acid b). Tartaric acid c). Saccharic acid d). Meso ‐oxalic acid

The acidic hydrolysis of ether (X) shown below is fastest when(A) one phenyl group is replaced by a methyl group. (B) one phenyl group is replaced by a para-methoxyphenyl group. (C) two phenyl groups are replaced by two para-methoxyphenyl groups. (D) no structural change is made to X

When 2 moles of HCl is added to 1 lit. of an acidic buffer solution, its pH changes from 3.4 to 3.9. Find its buffer capacity.

How to calculate pH of different types of solutions?

On reaction with stronger oxidizing agent like KIO4, hydrogen peroxide oxidizes with the evolution of O2. The oxidation number of I in KIO4 changes to ______.

The boiling point of a 0.2 m solution of a non-electrolyte in water is : (Kb for water = 0.52 K kg mol-1)(A) 100°C(B) 100.52°C(C) 100.104°C(D) 100.26°C

Nucleic acids are polymer of :(A) amino acids(B) nucleosides(C) nucleotides(D) glucose

Name the metal refined by Mond’s process.

Buffering action of a mixture of CH3COOH and CH3COONa is maximum when the ratio of salt to acid is equal to : (A) 1.0 (B) 100.0 (C) 10.0 (D) 0.1

Carded slivers are subjected to combing process, which is further delivered to ________ and here diameter of material is reduced and length of the material is increased. a. Roving frame b. Ring spinning frame c. Drawing frame d. Spinneret

When a water is heated from 0 degree celcius to 4 degree celcius then cp=cv or cp

Why does hydrogen occur in a diatomic from rather than in a monoatomic form under normal conditions?

Which of the following lanthanoid ions, has zero magnetic moment ? [Ce (z = 58), Sm (z = 62), Eu (z = 63), Yb (z = 70)]`A. `Sm^(2+)`B. `Eu^(2+)`C. `Yb^(2+)`D. `Ce^(2+)`

Which molecule has longest carbon chain ? (a) Neopentane (b) Isopentane (c) Neohexane (d) n- pentane

Which molecule all the least C-C distance ? (a) C2H6 (b) C2H4 (c) C2H2 (d) C4H8

What is the value of C – C bond length in ethyne ? (a) 154 pm (b) 139 pm (c) 134 pm (d) 120 pm

Difference between Hard Bases and Soft Bases.

what is the chemical formula of calomel?

State the properties of water.

How will the pH of milk change as it turns into curd?

In a bakery, baking powder was not added while preparing cake. The cake obtained was hard and small in size. What is the reason for this.

Trachea divide at the level of :-A. `T_(3)`B. `L_(3)`C. `T_(5)`D. `L_(5)`

An ore like zinc blends is concentrated byA. Froth floatationB. Magnetic separationC. LeachingD. Washing with water

Copper pyrites are concentrated byA. Electromagnetic methodB. Gravity methodC. Froth floatation processD. All of the above methods

Select the incorrect statement :-A. External nostrils leads to nasal chamber through the Nasal passage.B. Larynx is a cartilaginous sound box.C. The pharynx open through the larynx region into the trachea.D. During swallowing glottis can be covered thin collagenous flap called epiglottis.

Moist skin help in respiration in :-A. AnnelidsB. AmphibiansC. Both (1) and (2)D. Mammals

Simple organisms like sponges and cnideria circulate_____from their surrounding through their body cavities.A. LymphB. BloodC. Colourless plasmaD. Water

Vascularized bags present in Terrestrial animals helps in :-A. Pulmonary respirationB. Branchial respirationC. Cutaneous respirationD. Pharyngeal respiration

Special fluid helps in transportation of substances in complex animals is/are :-A. Blood and lymphB. Only bloodC. Only lymphD. RBC, WBC and platelets

Any material entering the trachea causes :-A. vimitingB. CoughingC. SneezingD. Regurgitation

To balance the bicarbonate ion loss in RBC the chloride ions move into RBC, it is known as :-A. Chloride shiftB. Hamburger phenomenonC. Bohr effectD. Both (1) and (2)

Which compounds does not contain OH group

Bohr effect is :-A. The effect of `Co_(2)` on haemoglobinB. The effect of `CO_(2)` on oxyhaemoglobinC. The effect of `CO_(2)` on RBCD. The effect of `O_(2)` on haemoglobin

Vocal cords occur in :-A. TracheaB. LarynxC. GlottisD. Bronchiai tube

Trachea is supported by :-A. Hyoid apparatusB. PalateC. CartilageD. All

Pulmonary surfactant is :-A. Amino acidB. SteriodC. PhospholipidD. Glycolipid

Which of the following has value 1:A. `tan45^circ`B. `sin90^circ`C. `cos90^circ`D. `cos0^circ`

Which of the following has value zero:A. `sin0^circ`B. `tan0^circ`C. `cos0^circ`D. `cot0^circ`

Selecthe correct statement(s):A. Physical chemistryB. Physical ChemistryC. Cation and anion are called basic and acidic radical respectivelyD. `[NiCl_4]^(2-)` is alow spin complex.

The end product of the following reactions are A. yellow ppt. of `CHl_(3)`, B. yellow ppt of `CHl_(3)`, C. yellow ppt of `CHl_(3)`, D. yellow ppt of `CHl_(3)`,

A buffer solution can be prepared from a mixture ofA. `NH_(4)Cl` and NaOH in 2 : 1 mole ratioB. `CH_(3)COONa` and HCl in 1 : 1 mole ratioC. `CH_(3)COONa` and NaOH in 2 : 1 mole ratioD. `CH_(3)COONa` and HCl in 1 : 2 mole ratio

When 1-butyne is treated with aqueous `H_(2)SO_(4)` in presence of `HgSO_(4)`, the major product isA. ButanalB. ButanoneC. ButenolD. Buten-2-ol