Chemistry Test

Result

Chemistry Test - 13

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Weekly Quiz Competition

Question 1
1 / -0

The metal that cannot be obtained by electrolysis of an aqueous solution of its salts is:

A

Cr

B

Ca

C

Cu

D

Ag
Question 2
1 / -0

In a galvanic cell, the salt bridge

A

ensures mixing of the two electrolytic solutions.

B

stops the diffusion of ions from one electrode to another.

C

is necessary for the occurrence of the cell reaction.

D

does not participate chemically in the cell reaction.
Question 3
1 / -0

+I effect is shown by

A

-CH3

B

-Br

C

-Cl

D

-N02
Question 4
1 / -0

Hydrogen bonding plays a central role in the following phenomena:

A

Dimerisation of acetic acid in benzene.

B

Ice floats in water.

C

Higher Lewis basicity of primary amines than tertiary amines in aqueous solutions.

D

All of these
Question 5
1 / -0

A

Option 1

B

Option 2

C

Option 3

D

Option 4
Question 6
1 / -0

MX2 dissociates in M^2+ and X^- ions in an aqueous solution, with a degree of dissociation (α) of 0.5. The ratio of the observed depression of freezing point of the aqueous solution to the value of the depression of freezing point in the absence of ionic dissociation is

A

3

B

2

C

4

D

5
Question 7
1 / -0

A

– 0.33 V; the reaction will occur

B

– 0.33 V; the reaction will not occur

C

– 2.69 V; the reaction will not occur

D

– 2.69 V; the reaction will occur
Question 8
1 / -0

A

8

B

9

C

7

D

10
Question 9
1 / -0

A

4

B

3

C

5

D

6
Question 10
1 / -0

In an atom, the total number of electrons having quantum numbers n = 4, |ml| = 1 and ms= –1/2 is

A

7

B

6

C

5

D

8