Zinc reacts with hydrochloric acid to give hydrogen and zinc chloride. The volume of hydrogen gas produced at STP from the reaction of 11.5 g of zinc with excess HCl is _____________L (Nearest integer

Question

Zinc reacts with hydrochloric acid to give hydrogen and zinc chloride. The volume of hydrogen gas produced at STP from the reaction of 11.5 g of zinc with excess HCl is _____________L (Nearest integer) (Given: Molar mass of Zn is 65.4g mol–1 and Molar volume of H2 at STP = 22.7 L) NTA (4) RESO. (4) | JEE(Main) 2023 | DATE : 31-01-2023 (SHIFT-1) | PAPER-1 | CHEMISTRY PAGE # 11

Prashant Kotian · Accepted Answer

Correct answer: D. Zn + 2HCl  ZnCl2 + H2. No. of moles of Zn = . 5 . = No. of moles of H2 No. of H2 liberated = 0.176 × 22.7 Lt. = 3.99 L  4 Lt.

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