The reaction that does NOT... | Metallurgy |JEE MAIN 2019

JEE MAIN 2019

11-01-2019 S2

Question

The reaction that does NOT define calcination is:

Select the correct option:

$\mathrm{Fe}_2 \mathrm{O}_3 \cdot \mathrm{XH}_2 \mathrm{O} \xrightarrow{\Delta} \mathrm{Fe}_2 \mathrm{O}_3+\mathrm{XH}_2 \mathrm{O}$

$\mathrm{CaCO}_3 \cdot \mathrm{MgCO}_3 \xrightarrow{\Delta} \mathrm{CaO}+\mathrm{MgO}+2 \mathrm{CO}_2$

$\mathrm{ZnCO}_3 \xrightarrow{\Delta} \mathrm{ZnO}+\mathrm{CO}_2$

$2 \mathrm{Cu}_2 \mathrm{~S}+3 \mathrm{O}_2 \xrightarrow{\Delta} 2 \mathrm{Cu}_2 \mathrm{O}+2 \mathrm{SO}_2$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Chemistry

Easy

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