Reaction that does not define calcinations is:

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General Principles and processes of Isolation of Elements

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The reaction that does not define calcinations is:

A

$F{e_2}{O_3}.X{H_2}O\xrightarrow{\Delta }F{e_2}{O_3} + X{H_2}O$

B

$2C{u_2}S + 3{O_2} \longrightarrow 2C{u_2}O + 2S{O_2}$

C

$ZnC{O_3}\xrightarrow{\Delta }ZnO + C{O_2}$

D

$CaC{O_3}.MgC{O_3}\xrightarrow{\Delta }CaO + MgO + 2C{O_2}$

(JEE MAIN-2019)

Solution

Calcination takes place in absence of air. Hence step $2$ is not defining it.

Standard 12

Chemistry

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(JEE MAIN-2019)

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