Question

B. Statements given below are incorrect. Write the correct statements.
1. Sodium metal reacts with hot water to form sodium hydroxide and hydrogen gas.
2. Zinc dissolves in sodium hydroxide to form zinc hydroxide and hydrogen gas.
3. In laboratory preparation of hydrogen gas, the reactants are aluminium and dilute sulphuric acid
4. In laboratory preparation of hydrogen gas ferrous sulphate is used as catalyst.
5. The acid used to make acidulated water in the electrolysis of water is carbonic acid.​

Answer 1

Answer:

Bases also react with certain metals like zinc or aluminum for example to produce hydrogen gas. For exanple, sodium hydroxide reacts with zinc and water to form sodium zincate and hydrogen gas. Zn(s)+2NaOH(aq)+2H2O(l)→Na2Zn(OH)4(aq)+H2(g).

Explanation: