CSIR NET & SET - Previous Year Papers Previous Year Questions

1

2019 · Unclassified

CHEMICAL SCIENCE PART C ( DECEMBER 2019) 2019

Report

The major product formed in the following reaction is

A

B

C

D

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2

2019 · Unclassified

LIFE SCIENCE PART A (DECEMBER 2019) 2019

Report

What is the ratio of the surface area of a cube with side 1 cm to the total surface area of the cubes formed by breaking the original cube into identical cubes of side 1 mm?

A

2025-01-06 13:30:00

B

2025-01-10 13:30:00

C

Jan-36

D

1/100

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3

2019 · Unclassified

CHEMICAL SCIENCE PART A ( DECEMBER 2019) 2019

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The trends of two quantities over five year are shown in the graph. Which of the following are valid inferences?
A. The mean values of the quantities are nearly equal
B. The variation in the two quantities are nearly equal
C. Quantity 1 varies less over the given period as compared to Quantity 2

A

Only (A) is true

B

Only (B) is true

C

(A) and (C) are true

D

(A) and (B) are true

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4

2019 · Unclassified

LIFE SCIENCE PART C (JUNE 2019) 2019

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Equal volumes of pH 4.0 and pH 10.0 solutions are mixed. What will be the approximate pH of the final solution?

A

7

B

5

C

6

D

4

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5

2019 · Unclassified

CHEMICAL SCIENCE PART B ( DECEMBER 2019) 2019

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A liquid of density 1.1 gm cm-3 climbs to a height of 5.0 cm when a capillary with internal radius of 0.2 mm is dipped into it. The surface tension (in Nm-1) of the liquid is closest to

A

0.05

B

0.018

C

0.005

D

0.108

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6

2019 · Unclassified

LIFE SCIENCE PART C (DECEMBER 2019) 2019

Report

A form and Z form of double stranded DNA differ in the handedness of their helices, nucleotide sequences, and configuration of base to sugar. Based on these properties, which one of the following statements defines a correct combination for A and Z forms of DNA?

A

Right handed doubled helix and anti-configuration for the base to sugar arrangement in A DNA; and left handed double helix with alternative sequence of G and C (as a general pattern), and alternating syn- and anti-configurations for the base to sugar arrangement in the Z DNA

B

Left-handed double helix and anti-configuration for base to sugar arrangement in the A form DNA and right-handed double helix and syn- configuration for base to sugar arrangement in the Z form DNA

C

Left-handed double helix and syn-configuration for base to sugar arrangement in the A form DNA and right-handed double helix and anti- configuration for the base to sugar arrangement for the Z form DNA

D

Right handed double helix and syn-configuration for the base to sugar arrangement in A DNA; and left handed double helix with alternating A and G sequence (as a general pattern), and anti-configurations for base to sugar arrangement in the Z DNA

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