Live Education Quiz

1

Reduction involves:

A

Loss of electrons

B

Loss of protons

C

Gain of electrons

D

Gain of neutrons

2

Oxidation is defined as:

A

Gain of electrons

B

Loss of electrons

C

Gain of protons

D

Loss of neutrons

3

Strength of a solution is defined as:

A

Moles per liter

B

Grams per liter

C

Liters per mole

D

Moles per gram

4

The amount of product formed depends on:

A

Excess reactant

B

Limiting reactant

C

Temperature only

D

Pressure only

5

The mole ratio is valid only for:

A

Unbalanced equations

B

Balanced equations

C

Word equations

D

Ionic equations

6

Theoretical yield is:

A

Actual amount obtained

B

Maximum possible amount

C

Minimum possible amount

D

Average yield

7

Electrolysis reactions are:

A

Spontaneous

B

Exothermic only

C

Non-spontaneous

D

Nuclear

8

Electrochemical series helps to predict:

A

Color of metal

B

Density of metal

C

Displacement reactions

D

Melting point

9

In the equation 2H₂ + O₂ → 2H₂O, the mole ratio of H₂ to O₂ is:

A

1:1

B

2:1

C

1:2

D

2:2

10

Electrolysis of molten compounds is preferred because:

A

Water interferes

B

Electricity is cheap

C

It gives less product

D

Reaction is spontaneous

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