JEE Main 2026 — Some Basic Concepts of Chemistry Question with Solution
JEE Main 2026 (21 January Shift 1)
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 of ]
[Given : Molar mass in of ]
Choose an option
Show full solutionCorrect option: D
Correct answer
D33.3 g of is produced.
Step-by-step explanation
Reaction:
Moles of Ca = mol. Since HCl is in excess, Ca is limiting.
Option (1): evolved = 0.35 mol
Option (2): Volume of at STP = L
Option (3): Ca is limiting reagent
Option (4): Mass of g, not 33.3 g
Statement (4) is incorrect.
Moles of Ca = mol. Since HCl is in excess, Ca is limiting.
Option (1): evolved = 0.35 mol
Option (2): Volume of at STP = L
Option (3): Ca is limiting reagent
Option (4): Mass of g, not 33.3 g
Statement (4) is incorrect.
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This is a previous-year question from JEE Main 2026, covering the Some Basic Concepts of Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.