14.0 g of calcium metal is allowed to react with excess HCl at 1.0 atm pressure and 273 K. Which of the following statements is incorrect ? [Given : Molar mass in g mol –1 of Ca–40, Cl–35.5,H–1] (A) 0

Question

14.0 g of calcium metal is allowed to react with excess HCl at 1.0 atm pressure and 273 K. Which of the following statements is incorrect ? [Given : Molar mass in g mol –1 of Ca–40, Cl–35.5,H–1]

(A) 0.35 mol of H2 gas is evolved.
(B) 7.84 L of H2 gas is evolved.
(C) 33.3 of CaCl2 is produced.
(D) The limiting reagent is calcium metal.

Prashant Kotian · Accepted Answer

Correct answer: C. (s) (g) 2(s) 2(g) excess Ca 2HCl CaCl H      = 0.35 mole 0.35 mole 0.35 mole Volume of H2(g) evolved = 0.35 × 22.4 = 7.84 L (3) is wrong because weight of CaCl2 = .35 × 111 = 38.85 gm

💡 Solution & Explanation

Practice 22,000+ questions like this