Question

Aluminum reacts with dilute HCL and liberates a gas 'A' and with aqueous alkali liberates a gas 'B'. A and B respectively are

• A. Cl2, O2
• B. O2,O2
• C. Cl2.H2
• D. H2,H2

Answer 1

Answer: (D)

H2,H2

Answer 2

The correct option is: (D): H2,H2.

1. 2 Al⁺ + 6 HCl → 2 AlCl₃ + 3 H₂
2. 2 Al⁺ + 2 NaOH + 2 H₂O → 2 NaAlO₂ + 3 H₂