State true or false.
$20$ g $C a C O_{3}$ ( $50 %$ pure) on strongly heating gives $5.6$ g residue.

True

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False

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Solution

The correct option is A True
$C a C O_{3} \to C a O + C O_{2}$
$100$ $56$ $44$
So, $20$ g of compound will give $10$ g of $C a C O_{3}$ and according to reaction, it will give $5.6$ g residue ( $C a O$ ).

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State true or false.20 g CaCO3 (50% pure) on strongly heating gives 5.6 g residue.

The correct option is A TrueCaCO3→CaO+CO2 100 56 44So, 20 g of compound will give 10 g of CaCO3 and according to reaction, it will give 5.6 g residue (CaO).

State true or false.
$20$ g $C a C O_{3}$ ( $50 %$ pure) on strongly heating gives $5.6$ g residue.

The correct option is A True
$C a C O_{3} \to C a O + C O_{2}$
$100$ $56$ $44$
So, $20$ g of compound will give $10$ g of $C a C O_{3}$ and according to reaction, it will give $5.6$ g residue ( $C a O$ ).