CHEMICAL SCIENCE PART B ( DECEMBER 2019) 2019

1

PYP

CHEMICAL SCIENCE PART B ( DECEMBER 2019) 2019

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

2

PYP

CHEMICAL SCIENCE PART B ( DECEMBER 2019) 2019

Pair of lanthanide ions which show significant deviation between the experimental and calculated magnetic moments considering contribution from the ground state only(given = g[J(J+1)]1/2, is

A

Gd3+ and Lu3+

B

Sm3+ and Tb3+

C

Eu3+ and Tb3+

D

Sm3+ and Eu3+

3

PYP

CHEMICAL SCIENCE PART B ( DECEMBER 2019) 2019

In common glass electrode, alkaline error caused at pH > 10 is least for

A

0.01M NaCl

B

1.0 M NaCl

C

1.0 M LiCl

D

1.0 M KCl

4

PYP

CHEMICAL SCIENCE PART B ( DECEMBER 2019) 2019

The major product formed in the following reaction is

A

B

C

D

5

PYP

CHEMICAL SCIENCE PART B ( DECEMBER 2019) 2019

The major product formed in the following reaction is

A

B

C

D