Question

Statement I:- Hydrogen gas is not evolved when zinc reacts with cold water.

Statement II:- Sodium reacts vigorously with cold water to produce sodium hydroxide and hydrogen gas.

• A. Only statement I is true.
• B. Both statements are false.
• C. Only statement II is true.
• D. Both statements are true.

Answer 1

The correct option is D Both statements are true.

• Zinc does not react with cold water to produce hydrogen gas. It produces hydrogen gas on reacting with steam.
• Sodium reacts vigorously with cold water to produce sodium hydroxide and hydrogen gas.