Electrolysis of Acidified Water

Q.

Ammonia gas dissolves in water to give ammonium ion.In this reaction water acts as an ___ .

Q.

During the electrolysis of molten sodium chloride, the reaction which occurs at the cathode is

1. ${\text{Na}}^{+}+{\text{e}}^{-}\to \text{Na(s)}$

2. $\text{Na(s)}\to {\text{Na}}^{+}+{\text{e}}^{-}$

3. ${\text{Cl}}_2\text{(g)}+2{\text{e}}^{-}\to 2{\text{Cl}}^{-}$

4. $2{\text{Cl}}^{-}\to {\text{Cl}}_2\text{(g)}+2{\text{e}}^{-}$

Q.

During the electrolysis of acidified water, the substance liberated at the cathode is

1. Water

2. Oxygen gas

3. Sulphuric acid

4. Hydrogen gas

Q.

During the electrolysis of aqueous sodium chloride, sodium ions having a greater tendency than water to get oxidized, gets oxidized and forms sodium at the cathode.

1. True

2. False

Q.

Choose the correct statement regarding electrolysis of acidified water from the options given below.

1. Pure water ionises to a small extent.

2. Hydrogen is obtained at the cathode.

3. Oxygen is obtained at the anode.

4. Water has a lesser tendency to get oxidized.

Q. Choose the incorrect statement regarding electrolysis of acidified water from the options given below.

1. Pure water ionises to a small extent.
2. Water has a lesser tendency to get oxidized.
3. Hydrogen is obtained at the cathode.
4. Oxygen is obtained at the anode.

Q.

Chloride gas is obtained at the cathode during the electrolysis of molten sodium chloride.

1. True

2. False

Q.

Which of the following substance gets liberated at the anode during the electrolysis of aqueous NaCl?

1. $H_2\left(g\right)$

2. $C{l}_2\left(g\right)$

3. $Na\left(s\right)$

4. $H_{2}O\left(l\right)$

Q. During the electrolysis of acidified water, where would oxygen and hydrogen gas be liberated?

1. Oxygen is liberated at anode, hydrogen is liberated at cathode
2. Oxygen is liberated at cathode, hydrogen is liberated at anode
3. Both are liberated at cathode
4. Both are liberated at anode

Q.

Assertion : Salts like $KCl,KN{O}_3$ i.e., inert electrolytes are used in salt bridge.

Reason : An inert electrolyte can easily be filled in the U-tube.

1. Both assertion and reason are true but reason is not the correct explanation of the assertion.

2. Assertion is true but reason is false.

3. Assertion and reason both are false.

4. Both assertion and reason are true and the reason is the correct explanation of the assertion.

Q.

Pure water is a substance that ionizes to a very large extent.

1. True

2. False

Q.

During the electrolysis of acidified water, the substance liberated at the anode is

1. Sulphuric acid

2. Hydrogen gas

3. Oxygen gas

4. Water

Q. Li is better reducing agent than Na.
If true enter 1, else enter 0.

Q.

Fill in the blanks by using correct words/terms given in the brackets

An aqueous solution of ammonium chloride has _____ nature. (acidic/basic)

Q. Take $25ml$ water in a beaker and the pass electricity through it. Then add little sulphuric acid in it.
Which ion is having highest oxidation potential?

Q.

Given are the reactions occuring during the electrolysis of sodium chloride solution:

$2C{l}^{-}\to C{l}_2+2e^{-}$
$2H_{2}O+2e^{-}\to H_2+2O{H}^{-}$

Which of the following is correct regarding liberation of electrolytic products?

1. Cathode : $Na$ and $H_2$
2. Cathode : $Na$ and $O_2$
3. Anode: $O_2$
4. Anode : $C{l}_2$