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Chemistry · 2025

JEE Main · 2 April 2025, Shift 1 · Q51

CaCO_3( s )+2 HCl ( aq ) → CaCl_2( aq )+ CO_2( g )+ H_2 O ( l ) Consider the above reaction, what mass of CaCl_2 will be formed if 250 mL of 0.76 M…

$\displaystyle \mathrm{CaCO}_3(\mathrm{~s})+2 \mathrm{HCl}(\mathrm{aq}) \rightarrow \mathrm{CaCl}_2(\mathrm{aq})+\mathrm{CO}_2(\mathrm{~g})+\mathrm{H}_2 \mathrm{O}(\mathrm{l})$ Consider the above reaction, what mass of $\displaystyle \mathrm{CaCl}_2$ will be formed if $\displaystyle 250$ mL of $\displaystyle 0.76$ M HCl reacts with $\displaystyle 1000$ g of $\displaystyle \mathrm{CaCO}_3$ ? (Given : Molar mass of $\displaystyle \mathrm{Ca}, \mathrm{C}, \mathrm{O}, \mathrm{H}$ and Cl are $\displaystyle 40,12,16,1$ and $\displaystyle 35.5 \mathrm{~g} \mathrm{~mol}^{-1}$, respectively)
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JEE Main 2025 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.