Question

By decomposition of 20 gm of CaCO3 ,the amount of CaO produced will

be ……

a) 2.8gm b) 8.4gm

c) 11.2 gm d) 14.0gm​

Answer 1

Answer:

OPTION C 11.2gm

Explanation:

The reaction is

CaCO₃→ CaO + CO₂

here 100gm CaCO₃ (1MOL) gives 56gm CaO (1MOL)

So,

20gm CaCO₃ will give

56/5 = 11.2gm CaO.

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Answer 2

HERE IS YOUR ANSWER -:

PLS MARK IT AS BRAINLIEST

Decomposition reaction is a type of reaction in which a single reactor breaks down into two or more product with the help of light,heat and electricity.

Now let's come towards your question -:

When we decompose 20gm CaCO3 then it breaks down into CaO and CO2 .

The answer will be 11.2 gm

That mean it's option C)