67 + Interview Questions in GENERAL QA IN KCET Page 1 InterviewSolution

1.	A plant is provided with ideal conditions for photosynthesis and supplied with isotope 14CO2. When the products of the process are analysed carefully, what would be the nature of products? (1) Both glucose and oxygen are normal (2) Both glucose and oxygen are labelled (3) Only glucose is labelled and oxygen is normal (4) Only oxygen is labelled but glucose is normal
Answer» (3) Only glucose is labelled and oxygen is normal

Discussion

2.	A plane glass plate is placed over a various coloured letters (violet, green, yellow, red). The letter which appears to raised more (1) Yellow (2) Violet (3) Red (4) Green
Answer» Correct option (2) Violet Explanation: S_N = t (1-1/h) As n increases, 1/h decreases and (1- 1/h) increases. ∴ S_N is more for that colour, for which n is more Among the given colours n is more for violet. Therefore it appears to be raised more.

2.

A plane glass plate is placed over a various coloured letters (violet, green, yellow, red). The letter which appears to raised more (1) Yellow (2) Violet (3) Red (4) Green

Answer»

Correct option (2) Violet

Explanation:

S_N = t (1-1/h) As n increases, 1/h decreases and (1- 1/h) increases.

∴ S_N is more for that colour, for which n is more

Among the given colours n is more for violet.

Therefore it appears to be raised more.

Discussion

3.	One of the following area is an example for secondary succession, if the succession takes place in/on (1) newly created pond (2) abandoned farm land (3) bare rock (4) newly cooled lava
Answer» (2) abandoned farm land

Discussion

4.	The edible part of the fruit of apple is (1) Endocarp (2) Thalamus (3) Involucre (4) Pericarp
Answer» (2) Thalamus

Discussion

5.	In the cyclotron, as radius of the circular path of the charged particle increases (ω = angular velocity, v = linear velocity) (1) ω only increases v remains constant (2) v increases, ω decreases (3) both ω and v increases (4) v increases, ω remains constant
Answer» Correct option (4) v increases, ω remains constant Explanation: Bqv = mv2/r v = (Bq/m)r As r increases, v increases. ω = v/r = Bq/m = constant (if mass is taken constant)

5.

In the cyclotron, as radius of the circular path of the charged particle increases (ω = angular velocity, v = linear velocity) (1) ω only increases v remains constant (2) v increases, ω decreases (3) both ω and v increases (4) v increases, ω remains constant

Answer»

Correct option (4) v increases, ω remains constant

Explanation:

Bqv = mv2/r

v = (Bq/m)r

As r increases, v increases.

ω = v/r = Bq/m = constant (if mass is taken constant)

Discussion

6.	Three projectiles A, B and C are projected at an angle of 30°, 45°, 60° respectively. If RA, RB and RC are ranges of A, B and C respectively, then (velocity of projection is same for A, B and C) (1) RA = RC > RB (2) RA = RC < RB (3) RA = RB = RC (4) RA < RB < RC
Answer» Correct option (2) R_A= R_C < R_B Explanation: Range is maximum for 45° ∴ B has maximum range Range is same for both 30° and 60° as they are complementary angles. ∴ R_A = R_C < R_B

6.

Three projectiles A, B and C are projected at an angle of 30°, 45°, 60° respectively. If RA, RB and RC are ranges of A, B and C respectively, then (velocity of projection is same for A, B and C) (1) RA = RC > RB (2) RA = RC < RB (3) RA = RB = RC (4) RA < RB < RC

Answer»

Correct option (2) R_A= R_C < R_B

Explanation:

Range is maximum for 45°

∴ B has maximum range

Range is same for both 30° and 60° as they are complementary angles.

∴ R_A = R_C < R_B

Discussion

7.	The component of a vector r along x-axis will have a maximum value if (1) vector r is along + ve y-axis (2) vector r makes an angle of 45° with the x-axis (3) vector r is along +ve x-axis (4) vector r is along –ve y-axis
Answer» Correct option (3) vector r is along +ve x-axis Explanation: r_x = r cos θ r_x is maximum if θ = 0

7.

The component of a vector r along x-axis will have a maximum value if (1) vector r is along + ve y-axis (2) vector r makes an angle of 45° with the x-axis (3) vector r is along +ve x-axis (4) vector r is along –ve y-axis

Answer»

Correct option (3) vector r is along +ve x-axis

Explanation:

r_x = r cos θ

r_x is maximum if θ = 0

Discussion

8.	Desired genes have been introduced into transgenic animals to obtain large scale production of useful biological products encoded by these genes. This approach is generally referred to as (1) gene therapy (2) hybridoma technology (3) down stream processing (4) molecular farming
Answer» (4) molecular farming

Discussion

9.	The value of the sin 1° + sin 2° + … + sin 359° is equal to (1) 1 (2) 180 (3) 0 (4) -1
Answer» Correct option (3) 0 Explanation: G.E. (sin 1° + sin 359°) + (sin 2° + sin 358°) + …. = 0 + 0 + … + 0 = 0

9.

The value of the sin 1° + sin 2° + … + sin 359° is equal to (1) 1 (2) 180 (3) 0 (4) -1

Answer»

Correct option (3) 0

Explanation:

G.E. (sin 1° + sin 359°) + (sin 2° + sin 358°) + ….

= 0 + 0 + … + 0 = 0

Discussion

10.	The rms value of current in a 50 Hz AC circuit is 6 A. The average value of AC current over a cycle is(1) 3/π√2(2) 6/π√2(3) 6√2(4) Zero
Answer» Correct option (4) Zero Explanation: Average value of AC over a cycle is zero.

10.

The rms value of current in a 50 Hz AC circuit is 6 A. The average value of AC current over a cycle is(1) 3/π√2(2) 6/π√2(3) 6√2(4) Zero

Answer»

Correct option (4) Zero

Explanation:

Average value of AC over a cycle is zero.

Discussion

11.	Some of the events occur during life cycle of plasmodium are given below. Identify the correct statement. (1) Female mosquito take up sporozoites with blood meal (2) The sporozoites reproduce sexually in liver cells (3) When mosquito bites a man, gametocytes are injected (4) The gametocytes develop in RBC
Answer» (4) The gametocytes develop in RBC

Discussion

12.	If xm yn = (x + y)m + n then dy/dx is equal to (1) xy(2) y/x(3) x +y/xy(4) 0
Answer» Correct option (2) y/x Explanation: Standard result dy/dx = y/x

12.

If xm yn = (x + y)m + n then dy/dx is equal to (1) xy(2) y/x(3) x +y/xy(4) 0

Answer»

Correct option (2) y/x

Explanation:

Standard result

dy/dx = y/x

Discussion

13.	A body falls freely for 10 sec. Its average velocity during this journey (take g = 10 ms-2 ) (1) 10 ms-1 (2) 5 ms-1 (3) 100 ms-1 (4) 50 ms-1
Answer» Correct option (4) 50 ms^-1 Explanation: Average velocity = (total distance/total time taken) = 1/2 gt²/t = 50 ms^–1

13.

A body falls freely for 10 sec. Its average velocity during this journey (take g = 10 ms-2 ) (1) 10 ms-1 (2) 5 ms-1 (3) 100 ms-1 (4) 50 ms-1

Answer»

Correct option (4) 50 ms^-1

Explanation:

Average velocity = (total distance/total time taken)

= 1/2 gt²/t

= 50 ms^–1

Discussion

14.	If cos α, cos β, cos γ are the direction cosines of a vector a,then cos 2α + cos 2β + cos 2γ is equal to (1) 3 (2) 0 (3) 2(4) -1
Answer» The Correct option is (4) -1

Discussion

15.	Identify from the following group of animals, which exhibit oestrous cycle.(1) Monkey, ape, man and elephant(2) Lion, deer, dog and cow(3) Lion, dog, monkey and ape(4) Cow, monkey, elephant and ape
Answer» (2) Lion, deer, dog and cow

Discussion

16.	The function f(x) = [x] the greatest integer function is continuous at (1) 4 (2) – 2 (3) 1.5 (4) 1
Answer» The Correct option is (3) 1.5

Discussion

17.	The codons UUU and UUC codes for phenylalanine only. This feature of genetic code is called(1) degenerate(2) commaless(3) non-ambiguous(4) non-overlapping
Answer» (1) degenerate

Discussion

18.	The value of x if (i + j + k) is a unit vector is(1) ± 3(2) ±1/2(3) ±1/√3(4) ± 3
Answer» Correct option (3) ± 1/√3 Explanation: x² + x² + x²= 1 3x² = 1 x² = 1/3 x = ± 1/√3.

18.

The value of x if (i + j + k) is a unit vector is(1) ± 3(2) ±1/2(3) ±1/√3(4) ± 3

Answer»

Correct option (3) ± 1/√3

Explanation:

x² + x² + x²= 1

3x² = 1

x² = 1/3

x = ± 1/√3.

Discussion

19.	The length of latus rectum of the parabola 4y2 + 3x + 3y + 1 = 0 is(1) 7 (2) 3/4 (3) 4/3 (4) 12
Answer» Correct option (2) 3/4 Explanation: 4y² + 3y = – 3x – 1 LR = \|coefficient of x\|/coefficient of y² = 3/4

19.

The length of latus rectum of the parabola 4y2 + 3x + 3y + 1 = 0 is(1) 7 (2) 3/4 (3) 4/3 (4) 12

Answer»

Correct option (2) 3/4

Explanation:

4y² + 3y = – 3x – 1

LR = |coefficient of x|/coefficient of y² = 3/4

Discussion

20.	The value of tan π/8 is equal to (1) √2 + 1(2) 1-√2(3) 1/2(4) 1/√2+1
Answer» Correct option (4) 1/√2 +1 Explanation: tan π/8 = √2 -1 = 1/√2 +1

20.

The value of tan π/8 is equal to (1) √2 + 1(2) 1-√2(3) 1/2(4) 1/√2+1

Answer»

Correct option (4) 1/√2 +1

Explanation:

tan π/8 = √2 -1 = 1/√2 +1

Discussion

21.	CO is a stronger ligand than Cl–, because (1) CO has π-bonds (2) CO is more reactive (3) CO is a neutral molecule (4) CO is poisonous
Answer» (1) CO has π-bonds

Discussion

22.	Which is true regarding nitrogen? (1) Has low ionisation enthalpy (2) Ability to form pπ -pπ bonds with itself (3) Less electronegative (4) d-orbitals are available
Answer» Correct option (2) Ability to form pπ -pπ bonds with itself Explanation: N has the ability to form pπ -pπ bonds with itself due to small size and high electronegativity

22.

Which is true regarding nitrogen? (1) Has low ionisation enthalpy (2) Ability to form pπ -pπ bonds with itself (3) Less electronegative (4) d-orbitals are available

Answer»

Correct option (2) Ability to form pπ -pπ bonds with itself

Explanation:

N has the ability to form pπ -pπ bonds with itself due to small size and high electronegativity

Discussion

23.	The correct statement regarding entropy is, (1) At absolute zero temperature, the entropy of a perfectly crystalline substance is +ve (2) At 0°C, the entropy of a perfect crystalline solid is zero (3) At absolute zero temperature, entropy of a perfectly crystalline solid is zero (4) At absolute zero temperature, the entropy of all crystalline substances is zero
Answer» Correct option (3) At absolute zero temperature, entropy of a perfectly crystalline solid is zero Explanation: 3^rd law of thermodynamics.

23.

The correct statement regarding entropy is, (1) At absolute zero temperature, the entropy of a perfectly crystalline substance is +ve (2) At 0°C, the entropy of a perfect crystalline solid is zero (3) At absolute zero temperature, entropy of a perfectly crystalline solid is zero (4) At absolute zero temperature, the entropy of all crystalline substances is zero

Answer»

Correct option (3) At absolute zero temperature, entropy of a perfectly crystalline solid is zero

Explanation:

3^rd law of thermodynamics.

Discussion

24.	The property which is not true about Fluorine is, (1) It forms only one oxo acid (2) High F-F bond dissociation enthalpy (3) Most of its reactions are exothermic (4) Highest electronegativity
Answer» Correct option (2) High F-F bond dissociation enthalpy Explanation: F₂ has low bond dissociation enthalpy due to small size and repulsion due lone pair electrons.

24.

The property which is not true about Fluorine is, (1) It forms only one oxo acid (2) High F-F bond dissociation enthalpy (3) Most of its reactions are exothermic (4) Highest electronegativity

Answer»

Correct option (2) High F-F bond dissociation enthalpy

Explanation:

F₂ has low bond dissociation enthalpy due to small size and repulsion due lone pair electrons.

Discussion

25.	Which of the following is incorrect in a galvanic cell? (1) Reduction occurs at cathode (2) The electrode at which electrons are lost is called cathode (3) Oxidation occurs at anode (4) The electrode at which electrons are gained is called cathode
Answer» (2) The electrode at which electrons are lost is called cathode

Discussion

26.	Find the mis-match from the following pairs: (1) Natural selection → Industrial melanism (2) Divergent evolution → thorn of bougainvillia and tendril of cucurbita (3) Genetic drift → Constant gene frequency (4) Adaptive radiation → Australian marsupials
Answer» (3) Genetic drift → Constant gene frequency

Discussion

27.	Reactions in Zeolite catalyst depend on, (1) Apertures (2) All of these (3) Pores (4) Size of cavity
Answer» (2) All of these

Discussion

28.	Elution means (1) making the DNA bands visible under UV radiation (2) separation of DNA fragments on agarose gel (3) isolating alien DNA from the choice organism (4) cutting and extraction of DNA bands from the agarose gel
Answer» (4) cutting and extraction of DNA bands from the agarose gel

Discussion

29.	Which one of these is not an accessory glands in male reproductive system? (1) Cowper’s gland (2) Prostate gland (3) Bartholin’s gland (4) Seminal vesicle
Answer» (3) Bartholin’s gland

Discussion

30.	Identify the incorrect statement from the following. (1) Response of T-cells is called cell mediated immunity (2) B-cells produce antibody (3) Macrophages are the phagocytic cells (4) Interferons kill viruses
Answer» (4) Interferons kill viruses

Discussion

31.	A spring is stretched by applying a load to its free end. The strain produced in the spring is (1) Shear (2) Longitudinal (3) Volumetric (4) Longitudinal & Shear
Answer» (4) Longitudinal & Shear

Discussion

32.	In a dithecous anther, each pollen sac contain 1000 MMC. What is the total number of pollen-grains produced by the anther? (1) 16,000 (2) 4,000 (3) 32,000 (4) 8,000
Answer» The Correct option is (1) 16,000

Discussion

33.	A person who has allergy, the type of antibody produced in his body is (1) IgE (2) IgA (3) 1gM (4) IgG
Answer» The Correct option is (1) IgE

Discussion

34.	The number of oxygen atoms in 4.4 gm of CO2 is, (1) 6 x 1022 (2) 12 x 1023 (3) 1.2 x 1023 (4) 6 x 1023
Answer» Correct option (1) 6 x 10²² Explanation: 44 g of CO₂ contains 6.022 × 10²³ CO₂molecules ∴4.4 g of CO₂ contains 6.022 × 10²² CO₂ molecules Each CO₂ molecule contains two oxygen atoms ∴ 6.022 × 10²² CO₂ molecules contain 1.2 × 10²³ O atoms.

34.

The number of oxygen atoms in 4.4 gm of CO2 is, (1) 6 x 1022 (2) 12 x 1023 (3) 1.2 x 1023 (4) 6 x 1023

Answer»

Correct option (1) 6 x 10²²

Explanation:

44 g of CO₂ contains 6.022 × 10²³ CO₂molecules

∴4.4 g of CO₂ contains 6.022 × 10²² CO₂ molecules

Each CO₂ molecule contains two oxygen atoms

∴ 6.022 × 10²² CO₂ molecules contain 1.2 × 10²³ O atoms.

Discussion

35.	HCl gas is covalent and NaCl is an ionic compound. This is because (1) Hydrogen is a non-metal (2) Electronegativity difference between H and Cl is less than 2.1 (3) Sodium is highly electro positive (4) HCl is a gas
Answer» (2) Electronegativity difference between H and Cl is less than 2.1

Discussion

36.	Which of the following is not true? (1) Natural rubber has ‘trans’ configuration at every double bond. (2) Natural rubber is 1, 4-polymer of isoprene. (3) In vulcanisation the rubber becomes harder and stronger. (4) Buna-S is a co-polymer of Butene and styrene.
Answer» Correct option (1) & (4) Explanation: Natural rubber is cis-polyisoprene Buna-S is a co-polymer of Butadiene and styrene.

36.

Which of the following is not true? (1) Natural rubber has ‘trans’ configuration at every double bond. (2) Natural rubber is 1, 4-polymer of isoprene. (3) In vulcanisation the rubber becomes harder and stronger. (4) Buna-S is a co-polymer of Butene and styrene.

Answer»

Correct option (1) & (4)

Explanation:

Natural rubber is cis-polyisoprene

Buna-S is a co-polymer of Butadiene and styrene.

Discussion

37.	The increasing order of bond order of O2,O+2,O2- - is(1) O2,- - O-2, O+2, O2(2) O2-2, O-2, O2, O+2(3) O+2, O2, O-2, O2- -(4) O2, O+2, O-2, O2- -
Answer» Correct option (2) O^2-₂, O^-₂, O₂, O₂⁺ Explanation: Increasing bond order: 1.0, 1.5, 2.0, 2.5.

37.

The increasing order of bond order of O2,O+2,O2- - is(1) O2,- - O-2, O+2, O2(2) O2-2, O-2, O2, O+2(3) O+2, O2, O-2, O2- -(4) O2, O+2, O-2, O2- -

Answer»

Correct option (2) O^2-₂, O^-₂, O₂, O₂⁺

Explanation:

Increasing bond order: 1.0, 1.5, 2.0, 2.5.

Discussion

38.	The hybridisation of C in diamond, graphite and ethyne is in the order (1) sp3, sp2, sp (2) sp2, sp3 , sp (3) sp3, sp, sp2 (4) sp, sp2 , sp3
Answer» The Correct option is (1) sp³, sp², sp.

Discussion

39.	Electrophile that participates in nitration of benzene is (1) NO+2 (2) NO-3 (3) NO+ (4) NO
Answer» Correct option (1) NO⁺₂ Explanation: NO⁺₂ , nitronium ion.

39.

Electrophile that participates in nitration of benzene is (1) NO+2 (2) NO-3 (3) NO+ (4) NO

Answer»

Correct option (1) NO⁺₂

Explanation:

NO⁺₂ , nitronium ion.

Discussion

40.	Osmotic pressure of the solution can be increased by, (1) decreasing the temperature of the solution (2) diluting the solution (3) increasing the temperature of the solution (4) increasing the volume of the vessel
Answer» Correct option (3) increasing the temperature of the solution Explanation: van’t Hoff-Charle’s law.

40.

Osmotic pressure of the solution can be increased by, (1) decreasing the temperature of the solution (2) diluting the solution (3) increasing the temperature of the solution (4) increasing the volume of the vessel

Answer»

Correct option (3) increasing the temperature of the solution

Explanation:

van’t Hoff-Charle’s law.

Discussion

41.	The composition of ‘copper matte’ is, (1) Cu2S + Cu2O (2) Cu2O + FeS (3) Cu2S + FeS (4) Cu2S + FeO
Answer» (3) Cu₂S + FeS.

Discussion

42.	Identify the correct equation for Hardy-Weinberg law. (A) (p + q)2 = 1 (2) p + q = 1 (3) (p – q)2 =1 (4) p – q = 1
Answer» (A) (p + q)² = 1

Discussion

43.	Identify a micro-organism that can produces biomass of protein. (1) Methylophilus methylotrophus (2) Monoscus purpureus (3) Trichoderma polysporum (4) Aspergillus niger
Answer» (1) Methylophilus methylotrophus

Discussion

44.	In plants, lateral roots arise from (1) endodermis (2) epidermis (3) pericycle (4) hypodermis
Answer» (3) pericycle

Discussion

45.	The gene disorder phenylketonuria is an example for (1) Multiple allelism (2) Polygenic inhentance (3) Multiple factor (4) Pleiotropy
Answer» (4) Pleiotropy

Discussion

46.	Match the plant structures given in the column-I with their plants given in the column-TI.Column IColumn IIA.Prothallusp.BryophytesB.Microsporophyllq.PteridophytesC.Protonemar.AngiospermsD.PENs.Gymnosperms(1) A - q, B - s, C - r, D - p (2) A - r, B - p, C - s, D - q (3) A - q, B - s, C - p, D - r (4) A - s, B - r, C – p, D - q
Answer» (3) A - q, B - s, C - p, D - r answer is option3

Discussion

47.	Pick the hormone which is not secreted by human placenta. (1) Prolactin (2) hCG (3) Estrogen(4) hPL
Answer» (1) Prolactin prolactin it is milk hormone secrets by posterior pituitary

Discussion

48.	Amniocentesis is one of the methods (1) for foetal sex determination (2) adapted for MTP (3) used for safe parturition (4) of birth control
Answer» (1) for foetal sex determination

Discussion

49.	Snow blindness is caused due to (1) Acid rain (2) Ozone hole (3) Green house effect (4) Nuclear winter
Answer» (2) Ozone hole

Discussion

50.	If tan-1(x2 +y2) = α then dy/dx is equal to(1) xy(2) - xy(3) -x/y(4) x/y
Answer» Correct option (3) -x/y Explanation: tan^-1 (x² +y²) = α ⇒ x² + y²= tan α Differentiating w.r.t. x, we get 2x +2y dy/dx = 0 ⇒ dy/dx = -x/y.

50.

If tan-1(x2 +y2) = α then dy/dx is equal to(1) xy(2) - xy(3) -x/y(4) x/y

Answer»

Correct option (3) -x/y

Explanation:

tan^-1 (x² +y²) = α

⇒ x² + y²= tan α

Differentiating w.r.t. x, we get 2x +2y dy/dx = 0

⇒ dy/dx = -x/y.

Discussion

Explore topic-wise InterviewSolutions in .

A plane glass plate is placed over a various coloured letters (violet, green, yellow, red). The letter which appears to raised more (1) Yellow (2) Violet (3) Red (4) Green

One of the following area is an example for secondary succession, if the succession takes place in/on (1) newly created pond (2) abandoned farm land (3) bare rock (4) newly cooled lava

The edible part of the fruit of apple is (1) Endocarp (2) Thalamus (3) Involucre (4) Pericarp

In the cyclotron, as radius of the circular path of the charged particle increases (ω = angular velocity, v = linear velocity) (1) ω only increases v remains constant (2) v increases, ω decreases (3) both ω and v increases (4) v increases, ω remains constant

Three projectiles A, B and C are projected at an angle of 30°, 45°, 60° respectively. If RA, RB and RC are ranges of A, B and C respectively, then (velocity of projection is same for A, B and C) (1) RA = RC &gt; RB (2) RA = RC &lt; RB (3) RA = RB = RC (4) RA &lt; RB &lt; RC

The component of a vector r along x-axis will have a maximum value if (1) vector r is along + ve y-axis (2) vector r makes an angle of 45° with the x-axis (3) vector r is along +ve x-axis (4) vector r is along –ve y-axis

Desired genes have been introduced into transgenic animals to obtain large scale production of useful biological products encoded by these genes. This approach is generally referred to as (1) gene therapy (2) hybridoma technology (3) down stream processing (4) molecular farming

The value of the sin 1° + sin 2° + … + sin 359° is equal to (1) 1 (2) 180 (3) 0 (4) -1

The rms value of current in a 50 Hz AC circuit is 6 A. The average value of AC current over a cycle is(1) 3/π√2(2) 6/π√2(3) 6√2(4) Zero

If xm yn = (x + y)m + n then dy/dx is equal to (1) xy(2) y/x(3) x +y/xy(4) 0

A body falls freely for 10 sec. Its average velocity during this journey (take g = 10 ms-2 ) (1) 10 ms-1 (2) 5 ms-1 (3) 100 ms-1 (4) 50 ms-1

If cos α, cos β, cos γ are the direction cosines of a vector a,then cos 2α + cos 2β + cos 2γ is equal to (1) 3 (2) 0 (3) 2(4) -1

Identify from the following group of animals, which exhibit oestrous cycle.(1) Monkey, ape, man and elephant(2) Lion, deer, dog and cow(3) Lion, dog, monkey and ape(4) Cow, monkey, elephant and ape

The function f(x) = [x] the greatest integer function is continuous at (1) 4 (2) – 2 (3) 1.5 (4) 1

The codons UUU and UUC codes for phenylalanine only. This feature of genetic code is called(1) degenerate(2) commaless(3) non-ambiguous(4) non-overlapping

The value of x if (i + j + k) is a unit vector is(1) ± 3(2) ±1/2(3) ±1/√3(4) ± 3

The length of latus rectum of the parabola 4y2 + 3x + 3y + 1 = 0 is(1) 7 (2) 3/4 (3) 4/3 (4) 12

The value of tan π/8 is equal to (1) √2 + 1(2) 1-√2(3) 1/2(4) 1/√2+1

CO is a stronger ligand than Cl–, because (1) CO has π-bonds (2) CO is more reactive (3) CO is a neutral molecule (4) CO is poisonous

Which is true regarding nitrogen? (1) Has low ionisation enthalpy (2) Ability to form pπ -pπ bonds with itself (3) Less electronegative (4) d-orbitals are available

The property which is not true about Fluorine is, (1) It forms only one oxo acid (2) High F-F bond dissociation enthalpy (3) Most of its reactions are exothermic (4) Highest electronegativity

Which of the following is incorrect in a galvanic cell? (1) Reduction occurs at cathode (2) The electrode at which electrons are lost is called cathode (3) Oxidation occurs at anode (4) The electrode at which electrons are gained is called cathode

Find the mis-match from the following pairs: (1) Natural selection → Industrial melanism (2) Divergent evolution → thorn of bougainvillia and tendril of cucurbita (3) Genetic drift → Constant gene frequency (4) Adaptive radiation → Australian marsupials

Reactions in Zeolite catalyst depend on, (1) Apertures (2) All of these (3) Pores (4) Size of cavity

Elution means (1) making the DNA bands visible under UV radiation (2) separation of DNA fragments on agarose gel (3) isolating alien DNA from the choice organism (4) cutting and extraction of DNA bands from the agarose gel

Which one of these is not an accessory glands in male reproductive system? (1) Cowper’s gland (2) Prostate gland (3) Bartholin’s gland (4) Seminal vesicle

Identify the incorrect statement from the following. (1) Response of T-cells is called cell mediated immunity (2) B-cells produce antibody (3) Macrophages are the phagocytic cells (4) Interferons kill viruses

A spring is stretched by applying a load to its free end. The strain produced in the spring is (1) Shear (2) Longitudinal (3) Volumetric (4) Longitudinal &amp; Shear

In a dithecous anther, each pollen sac contain 1000 MMC. What is the total number of pollen-grains produced by the anther? (1) 16,000 (2) 4,000 (3) 32,000 (4) 8,000

A person who has allergy, the type of antibody produced in his body is (1) IgE (2) IgA (3) 1gM (4) IgG

The number of oxygen atoms in 4.4 gm of CO2 is, (1) 6 x 1022 (2) 12 x 1023 (3) 1.2 x 1023 (4) 6 x 1023

HCl gas is covalent and NaCl is an ionic compound. This is because (1) Hydrogen is a non-metal (2) Electronegativity difference between H and Cl is less than 2.1 (3) Sodium is highly electro positive (4) HCl is a gas

Which of the following is not true? (1) Natural rubber has ‘trans’ configuration at every double bond. (2) Natural rubber is 1, 4-polymer of isoprene. (3) In vulcanisation the rubber becomes harder and stronger. (4) Buna-S is a co-polymer of Butene and styrene.

The increasing order of bond order of O2,O+2,O2- - is(1) O2,- - O-2, O+2, O2(2) O2-2, O-2, O2, O+2(3) O+2, O2, O-2, O2- -(4) O2, O+2, O-2, O2- -

The hybridisation of C in diamond, graphite and ethyne is in the order (1) sp3, sp2, sp (2) sp2, sp3 , sp (3) sp3, sp, sp2 (4) sp, sp2 , sp3

Electrophile that participates in nitration of benzene is (1) NO+2 (2) NO-3 (3) NO+ (4) NO

Osmotic pressure of the solution can be increased by, (1) decreasing the temperature of the solution (2) diluting the solution (3) increasing the temperature of the solution (4) increasing the volume of the vessel

The composition of ‘copper matte’ is, (1) Cu2S + Cu2O (2) Cu2O + FeS (3) Cu2S + FeS (4) Cu2S + FeO

Identify the correct equation for Hardy-Weinberg law. (A) (p + q)2 = 1 (2) p + q = 1 (3) (p – q)2 =1 (4) p – q = 1

Identify a micro-organism that can produces biomass of protein. (1) Methylophilus methylotrophus (2) Monoscus purpureus (3) Trichoderma polysporum (4) Aspergillus niger

In plants, lateral roots arise from (1) endodermis (2) epidermis (3) pericycle (4) hypodermis

The gene disorder phenylketonuria is an example for (1) Multiple allelism (2) Polygenic inhentance (3) Multiple factor (4) Pleiotropy

Pick the hormone which is not secreted by human placenta. (1) Prolactin (2) hCG (3) Estrogen(4) hPL

Amniocentesis is one of the methods (1) for foetal sex determination (2) adapted for MTP (3) used for safe parturition (4) of birth control

Snow blindness is caused due to (1) Acid rain (2) Ozone hole (3) Green house effect (4) Nuclear winter

If tan-1(x2 +y2) = α then dy/dx is equal to(1) xy(2) - xy(3) -x/y(4) x/y

Three projectiles A, B and C are projected at an angle of 30°, 45°, 60° respectively. If RA, RB and RC are ranges of A, B and C respectively, then (velocity of projection is same for A, B and C) (1) RA = RC > RB (2) RA = RC < RB (3) RA = RB = RC (4) RA < RB < RC

A spring is stretched by applying a load to its free end. The strain produced in the spring is (1) Shear (2) Longitudinal (3) Volumetric (4) Longitudinal & Shear