JEE Main 2026 — Some Basic Concepts of Chemistry Question with Solution
JEE Main 2026 (05 April Shift 1)
Question
How many grams of residue is obtained by heating g of silver carbonate?
(Given: Molar mass of C, O and Ag are , and g mol respectively)
(Given: Molar mass of C, O and Ag are , and g mol respectively)
Choose an option
Show full solutionCorrect option: B
Correct answer
B g
Step-by-step explanation
Molar mass of = g mol
Number of moles of = mol
The decomposition reaction of silver carbonate on heating is:
From the stoichiometry of the reaction, mole of gives moles of Ag as residue.
Number of moles of Ag formed = mol
Mass of Ag residue = g
Answer: g
Number of moles of = mol
The decomposition reaction of silver carbonate on heating is:
From the stoichiometry of the reaction, mole of gives moles of Ag as residue.
Number of moles of Ag formed = mol
Mass of Ag residue = g
Answer: g
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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.