Which of the following is thermally most stab | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The thermal stability of metal carbonates generally increases as the electropositive character of the metal increases. Alkali metal carbonates (Gr

Vedclass · Accepted Answer

$K_2CO_3$

Vedclass · Answer

(D) The thermal stability of metal carbonates generally increases as the electropositive character of the metal increases. Alkali metal carbonates (Group $1$) are thermally very stable compared to transition metal or alkaline earth metal carbonates. Among alkali metal carbonates,stability increases down the group as the size of the cation increases,which reduces the polarizing power of the cation on the carbonate ion. $K_2CO_3$ is more stable than $Na_2CO_3$ because $K^+$ has a larger ionic radius than $Na^+$. However,$Na_2CO_3$ and $K_2CO_3$ are both highly stable,but $K_2CO_3$ is generally considered more stable due to the larger size of the $K^+$ ion.

Which of the following is thermally most stable?

Similar Questions

The compound$(s)$ formed upon combustion of sodium metal in excess air is(are):

Hydration enthalpy of which of the following ions is highest?

Give the general electronic configuration of alkali metals and provide the electronic configuration for each element of the alkali metal group.

The disease known as fluorosis is caused by the reaction of excess fluorine in the body with which of the following?

Which of the following substances will react with concentrated $H_2SO_4$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module