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JEE Main 2012Offline

Exam: JEE Main
Year: 2012
Mode: Offline
Subject: Chemistry
Chapter: s Block Elements

JEE Main 2012 · Offline · Chemistry · s Block Elements

Which of the following on thermal decomposition yields a basic as...

Which of the following on thermal decomposition yields a basic as well as an acidic oxide ?

Options

A $\mathrm{NaNO}_3$
B $\mathrm{KClO}_3$
C $\mathrm{CaCO}_3$
D $\mathrm{NH}_4 \mathrm{NO}_3$

Correct answer

C. $\mathrm{CaCO}_3$

Step-by-step solution

\mathrm{CaCO}_3 \rightarrow \underset{\text{ Basic }}{\mathrm{CaO}}+\underset{\text{ Acidic }}{\mathrm{CO}_2}

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