Question

2.76 gm of silver carbonate on being strongly heated yields a residue weighing

(a) 2.48 g

(b) 2.16 g

(c) 2.32 g

(d) 2.64 g

Answer 1

Correct option is (b) 2.16 g

Ag₂CO₃  → 2Ag + CO₂ + \(\frac12\)O₂

Weight of Ag (residue) = \(\frac{2 \times 108 \times 2.76}{276}\) = 2.16 g