NEET Chemistry The s-Block Elements Questions Solved

NEET - 2015

On heating which of the following releases CO2 most easily?

(a) K2CO3                                 (b) Na2CO3

(c) MgCO3                                 (d) CaCO3

Order of thermal stability is

K2CO3>Na2CO3>CaCO3>MgCO3

Hence, MgCO3 releases CO2 most easily

MgCO3 MgO + CO2

Difficulty Level:

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