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.

Q. 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.

Q. Statement I: Hydrogen gas is not evolved when zinc granules react with cold water.

Statement II: Magnesium reacts vigorously with hot water to produce magnesium hydroxide and hydrogen gas.

Q. Which among the following statements is incorrect for magnesium metal?

(a) It burns in oxygen with a dazzling white flame.
(b) It reacts with cold water to form magnesium oxide and evolves hydrogen gas.
(c) It reacts with hot water to form magnesium hydroxide and evolves hydrogen gas.
(d) It reacts with steam to form magnesium hydroxide and evolves hydrogen gas.

Q. Assertion: Sodium reacts vigorously with cold water but magnesium does not react with cold water.
Reason: Sodium is more reactive than magnesium.

Q.

Sodium metal reacts vigorously with water.

(a) Name the gas evolved when sodium reacts with water.

(b) State whether the solution formed by the reaction of sodium with water is acidic or basic.