Question

Wote tue false for the statements
given below -
1. Zinc is highly ductile in nature.
2. Gold is highly malleable in nature.
3. Sodium metal is lighter than water.
4. Water is an example of a basic oxide.
5. The reaction between iron and copper sulphate is displacement reaction
6. Copper reacts with dilute sulphuric acid to form copper sulphate solution
and hydrogen gas.​

Answer 1

1) False

Zinc is ductile in nature, not highly ductile.

2) True

Gold has very high malleability.

3) True

Sodium has a lower density than water, hence it's lighter than water.

4) False

Water is a neutral oxide. Distilled water has a pH of seven at room temperature.

5) True

The reaction goes :-

$\sf Fe(s) + CuSO_4(aq) \rightarrow FeSO_4(aq) + Cu(s)$

Hence, the reaction is displacement reaction as iron displaces copper from its salt solution.

6) False

Copper doesn't react with dilute hydrochloric acid. It reacts with concentrated hydrolochoric acid to form copper sulphate, sulphur dioxide gas and water.

Answer 2

Explanation:

1) False

Zinc is ductile in nature, not highly ductile.

2) True

Gold has very high malleability.

3) True

Sodium has a lower density than water, hence it's lighter than water.

4) False

Water is a neutral oxide. Distilled water has a pH of seven at room temperature.

5) True

The reaction goes :-

\sf Fe(s) + CuSO_4(aq) \rightarrow FeSO_4(aq) + Cu(s)Fe(s)+CuSO

4

(aq)→FeSO

4

(aq)+Cu(s)

Hence, the reaction is displacement reaction as iron displaces copper from its salt solution.

6) False

Copper doesn't react with dilute hydrochloric acid. It reacts with concentrated hydrolochoric acid to form copper sulphate, sulphur dioxide gas and water.