The correct order of increasing thermal stability of K2CO3, MgCO3, CaCO3 and BeCO3 is

Question

The correct order of increasing thermal stability of K2CO3, MgCO3, CaCO3 and BeCO3 is (A) BeCO3 < MgCO3 < K2CO3 < CaCO3 (B) BeCO3 < MgCO3 < CaCO3 < K2CO3 (C) MgCO3 < BeCO3 < CaCO3 < K2CO3  (D)  K2CO3 < MgCO3 < CaCO3 < BeCO3

Tardigrade Admin · Accepted Answer

Thermal stability of carbonates increases in a group as we move from top to bottom and decreases in a period as we move from left to right, so the correct order of thermal stability of given carbonates is

B e C O_{3} < M g C O_{3} < C a C O_{3} < K_{2} C O_{3}

B e, M g

and

C a

are present in second group and

K

is present in first group

Q. The correct order of increasing thermal stability of $K_{2} C O_{3}, M g C O_{3}, C a C O_{3}$ and $B e C O_{3}$ is

$B e C O_{3} < M g C O_{3} < K_{2} C O_{3} < C a C O_{3}$

$B e C O_{3} < M g C O_{3} < C a C O_{3} < K_{2} C O_{3}$

$M g C O_{3} < B e C O_{3} < C a C O_{3} < K_{2} C O_{3}$

$K_{2} C O_{3} < M g C O_{3} < C a C O_{3} < B e C O_{3}$

Q. The correct order of increasing thermal stability of K2​CO3​,MgCO3​,CaCO3​ and BeCO3​ is

BeCO3​<MgCO3​<K2​CO3​<CaCO3​

BeCO3​<MgCO3​<CaCO3​<K2​CO3​

MgCO3​<BeCO3​<CaCO3​<K2​CO3​

K2​CO3​<MgCO3​<CaCO3​<BeCO3​

Q. The correct order of increasing thermal stability of $K_{2} C O_{3}, M g C O_{3}, C a C O_{3}$ and $B e C O_{3}$ is

$B e C O_{3} < M g C O_{3} < K_{2} C O_{3} < C a C O_{3}$

$B e C O_{3} < M g C O_{3} < C a C O_{3} < K_{2} C O_{3}$

$M g C O_{3} < B e C O_{3} < C a C O_{3} < K_{2} C O_{3}$

$K_{2} C O_{3} < M g C O_{3} < C a C O_{3} < B e C O_{3}$