1. A compound with initial concentration, the time required for decomposition of half of the compound with ith order is inversely proportional to:



N^i





2. A hydrophilic colloidal sol is

Starch sol

Silver iodide sol

Arsenous sulphide sol

Barium sulphate sol

3. Alcohol dehydration involves

Carbene

Carbanion

Carbonium ion

Free radical

4. Glucose molecule reacts with following compound to give raise to osazone.

Carbazene

Phenol

Phenyl hydrazine

Hydroxyl amine

5. The NH3 molecule has the following shape

Bent

Seesaw

Trigonal pyramidal

Pyramidal

6. The slope ofthe line which is perpendicular to the line segment and is ....

1/2



2



7. The area of the circle with centre at origin and passing through is .... sq.units

25.0

8.0

78.5

32.5

8. The value of Sin

1



1/2



9. Four dice 01, 02, 03 and 04, each having six faces numbered and are rolled simultaneously. The probability that 04 shows a number appearing on one of01, 02 and 03 is

91/216

108/216

125/216

127/216

10. If the sides of the two squares are in the ratio the ratio of their areas will be

1:2

3:1

4:1

3:4

11. HTTP stands for:

Hyperlinked Text Type Protocol

Hypertext Transfer Package

Hypertext Transfer Protocol

Hypertext Transmission Protocol

12. Which of the following is the feature of Object Oriented Programming

Encapsulation

Polymorphism

Inheritance

All of the above

13. Which generation of the computers used vacuum tubes for circuitry?

First

Second

Third

Fourth

14. The main working memory used by computers is

ROM

RAM

Cache

CO

15. 1 KB is equivalent to

1000 bytes

1024 bytes

1000 MB

1024 MB

16. Momentum is defined as

Mass x acceleration

Mass x velocity

Force x distance

Mass x velocity

17. The energy possessed by a body due to its position or configuration is called energy.

Thermal

Potential

Kinetic

Sound

18. Force mass X ..

Velocity

Speed

Acceleration

Pressure

19. One kg of air is compressed from 1m^3 to 0.5 m^3.Which of the following statements is true?

The mass is halved

The mass is doubled

The density is doubled

The density is halved

20. Coulomb's law describes .......

Force acting on two charges separated by a distance

Force acting between two objects separated by a distance

Centripetal force acting due to rotation of body

None of the above.

21. What is the purpose of a buffer system in electrophoresis?

Alternate the current

Disrupt the contaminants

Stop the migration process

Carry the current and protect the samples

22. Zika virus belongs to the family

Filoviridae

Flaviviridae

Adenoviridae

Geminiviridae

23. Specialized animal cell that secretes a hormone into the blood

Epithelial

Neuronal

Endocrine

Muscle

24. The drug discovered by the Nobel Laureate Youyou Tu against Malaria is

Quinine

Quercetin

Cinchonine

Artemisinin

25. Which of the following amino acids has buffering capacity?

Tryptophan

Cysteine

Arginine

Histidine

26. An amino acid has 0.032% sulphur, if each molecule has only one Sulphur atom. Number of molecules contained in 1 g of amino acid is

6.02x10^23

6.02x10^19

6.02xl0^18

6.02xl0^21

27. Greater probability of an orbital close to nucleus is

3d

3s

3p

All are equally placed

28. Number of molecules inside 1.0 cm diameter soap bubble at 1 atm pressure and 25°C:

1.03x10^23

1.29xl0^19

1.29x10^22

1.03xl0^20

29. Osmotic pressure of 0.1 M monobasic acid at pH 2.0, T Kelvin is

0.11 RT

1.1 RT

0.01 RT

0.1 RT

30. In a reaction with zero activation energy, the rate constant at 280 K is 1.6x10^-6 S·I, what would be rate constant at 300 K.

1.6xl0^-5

1.6xl0^-6

3.2xlO^-6

Zero

31. Composition of Salt bridge is

Agar-agar paste

Calomel

Corroosive sublimare

All the above

32. Glucose does not react with

HCN

NaHS03

NH20H

None of the above

33. Monochlorinated racemic mixture is formed by

n-butane

Neupetane

2,2,3,3-tetramethylbutane

2,3-dimethyl butane

34. A sample of is placed in a flask at a pressure of 0.2 atm. At equilibrium the partial pressure of is 0.04 atm. What is the Kp for the given equilibrium? 2HI(g)

7

4

12

8

35. In the following equation the conjugate acid is NH3 H20 NH+4 OH-

NH3

NH+4

H20

OH­

36. The geometric mean of the numbers 2i, 4i, 6i and 8i is

i(4sqrt)384

(4sqrt)384i

(4sqrt)384

(4sqrt)384

37. The sequence, .... is

Increasing and bounded

Decreasing and bounded

Increasing and not bounded

Decreasing and not bounded

38. Square of the distance between two points yl, zl) and y2, z2) is given by









39. A cubical room of sides equal to 10 mts requires 2 Ton AC unit for optimum cooling. How many Tons of AC unit is required for optimal cooling if each side of the cubical room is doubled?

4 Tons

2 Tons

8 Tons

16 Tons

40.

<img src='./qimages/16009-40.jpg'>

The lengths of the four sides of the quadrilateral are represented by and D. If you want to calculate the area of the quadrilateral, at least how many of the sides must we know to make the calculation?

All the four sides

Three of the four sides enough

only two of the sides enough

May be not enough data

41. Raj can type 10 pages in 5 minutes. As compared to Raj, Meghana takes twice the time to type half the number of pages. How much time is required in order to get 75 typed pages from Raj and Meghana together?

25 minutes

35 minutes

40 minutes

30 minutes

42. The dot product of the two vectors a and b which are perpendicular to each other is

0

product of and

1

None of the above

43. A value ofP that is conventionally used while making statistical significance test is

>0.05

<0.5

>0.5

<0.05

44. If a and b are positive integers and 417, then

b<a

a

b=a



45. If 13 then

1/4

1/2

l

2

46. Consider the following statements:

int i
int j
int k

What are the values of j and

5 and 5

5 and 6

4 and 5

4 and 4

47. The decimal number equivalent to a binary number 100101 is

33

35

37

39

48. Format identifier for int data type in C is/are







and both

49. For the logic circuit shown below in the figure, the required input combination to get the output X 1 is

<img src='./qimages/16009-49.jpg'>

A 0,B 0

A 0,B 1

A B 1

A 1,B 0

50. Which of the following language is used to set the visual style of a web document

CSS

JavaScript

C

R

51. If a NAND gate with two inputs X and Y gives the output is 0 then

X 1,Y 0

X Y 1

X Y 0

X 1,Y 1

52. Programming language C was invented by

Charles Babbage

Dennis M. Ritchie

Alan Turing

Larry Wall

53. The network protocol commonly used for exchanging files over the Internet is

HTTP

FTP

SMTP

None of the above

54. In the field of machine learning NLP stands for

Next Level Programming

Natural Learning Programming

Natural Language Programming

Natural Language Processing

55. Which is the central/core part of an operating system?

Kernel

Shell

Terminal

BIOS

56. "An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force". This is known as ...

Newton's first law of motion

Newton's second law of motion

Newton's third law of motion

none of the above

57. The dielectric constant of water is ..........

0

10

40

80

58. Themotion of the pendulum in a working clock is an example of...motion

circular

Harmonic

Unharmonic

Linear

59. The velocity of a freely falling body would increase by at the end of every second.

9.8 mts/sec

9.8 mts/sec^2

9.8 feet/sec

9.8 feet/sec^2

60. A body of mass 10 Kgs is seen approaching place B from place A at a velocity of 100 mt/sec. What might be its K.E. at the point

2500Kg.mt/sec

250Kg.mt/sec

50Kg.mt/sec

None ofthe above

61. The sensation of being thrown out when sitting on the rim of a spinning wheel is due to ...

Centripetal force

Centrifugal force

Gravitational force

None of the above

62. In an electric motor, the kind of conversion that takes place is ....

Chemical energy to mechanical energy

Electrical energy to mechanical energy

Electrical energy to light

Electrical energy to chemical energy

63. Which of following is not an electromagnetic wave?

gamma ray

light ray

X-ray

cathode ray

64. Moment of inertia of a hollow sphere of mass M with radius r is

Mr

Mr^2/2

Mr^2/3

2Mr^2/3

65. In the famous equation E=mc^2 derived by Albert Einstein, m and c stand for ----respectively.

energy, mass and a constant

energy, mass and speed of light

energy, momentum and a constant

energy, momentum and speed of light

66. Tool used for finding the best match of a DNA sequence against a target database

Local pairwise sequence alignment

Global pairwise sequence alignment

BLAST-N

BLAST-P

67. The proteins are imported from cytosol into specialized organelles with the aid of

Promoter sequences

Introns

Signal sequences

Exons

68. Which one of the technique is used for quantification ofmRNA?

Nested PCR

Gradient PCR

Real time PCR

Western blotting

69. Cytotoxic T cells are distinguished from Helper T cells by the presence of

CD2

CD3

CD8

Class II MHC antigen

70. Which of the following disease is not an autoimmune disease?

Grave's disease

Rheumatoid arthritis

Lupus erythematosis

Bovine spongiform encephalitis

71. During the organic extraction technique in which genetic material is isolated from other cellular components, which layer is the nucleic acid found after phase separation?

Solid phase

Lowermost phase

Interface phase

Uppermost phase

72. Having become an expert on gel electrophoresis, you are asked to examine a gel for a colleague, where would you find the smallest segment of DNA?

Near the negative electrode, close to the wells

Near the negative electrode, at the bottom of the wells

Near the positive electrode, farthest away from the wells

Near the middle of the gel, they tend to slow down after the first few minutes

73. Which of the following can prevent ligation of the restriction enzyme digested plasmid vector

Ligase

Phosphatase

DNA polymerase

Reverse transcriptase

74. Mitochondrial DNA polymerase does not have an error checking mechanism such as that of nuclear DNA polymerase. This would be expected to lead to a higher rate of which type of mutation in mitochondrial DNA?

Spontaneous mutations

Induced mutations

Deletion

None of these

75. Which of the following statements concerning proteins is correct?

The peptide bond is formed through a hydrolysis reaction

Proteins are the only molecules that can catalyze reactions in the cell.

Disulfide bonds are formed from ionic interactions between charged amino acids.

Alpha helices are stabilized by hydrogen bonding between the carbonyl oxygen and the amide hydrogen of amino acids.