Q63 / 180 · NEET 2015 (Phase 2) · Chemistry

On heating which of the following releases $C O_{2}$ most easily?

A
$K_{2} C O_{3}$
B
$N a_{2} C O_{3}$
Correct answer
C
$M g C O_{3}$
D
$C a C O_{3}$

Solution

Thermal stability order

K_{2} C O_{3} > N a_{2} C O_{3} > C a C O_{3} > M g C O_{3}

Therefore

M g C O_{3}

releases

C O_{2}

most easily.

M g C O_{3} \overset{Δ}{\to} M g O + C O_{2}

Hence, the correct answer is option: 'C'.

Relevant Questions

and are components of :2022 (Phase 2)Compounds of Alkaline Earth Metals
Which one of the following is not a calcination reaction?2022 (Phase 2)Compounds of Alkaline Earth Metals
What is the role of gypsum, CaSO 4 . 2 H 2 O in setting of cement? Identify the correct option from the following:2020 (Phase 2)Compounds of Alkaline Earth Metals
Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is2019 (All India)Compounds of Alkaline Earth Metals
Magnesium reacts with an element X to form an ionic compound. If the ground state electronic configuration of X is 1 s 2 , 2 s 2 , 2 p 3 , t2018Compounds of Alkaline Earth Metals
Which of the following statements is false?2016 (Phase 1)Compounds of Alkaline Earth Metals