Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Barium carbonate is insoluble in water and is highly stable. Reason (R): The thermal stability of the carbonates increases with increasing cationic size.

Question

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Barium carbonate is insoluble in water and is highly stable. Reason (R): The thermal stability of the carbonates increases with increasing cationic size. (A) Both (A) and (R) are true but (R) is the true explanation of (A) (B) (A) is true but (R) is false (C) Both (A) and (R) are true and (R) is not the true explanation of (A) (D) (A) is false but (R) is true.

Tardigrade Admin · Accepted Answer

In IIA group on moving down the group size of cation increases and show thermal stability of carbonate increases.

Q. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Barium carbonate is insoluble in water and is highly stable. Reason (R) : The thermal stability of the carbonates increases with increasing cationic size.

Both (A) and (R) are true but (R) is the true explanation of (A)

(A) is true but (R) is false

Both (A) and (R) are true and (R) is not the true explanation of (A)

(A) is false but (R) is true.

In IIA group on moving down the group size of cation increases and show thermal stability of carbonate increases.

Q. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Barium carbonate is insoluble in water and is highly stable.
Reason (R) : The thermal stability of the carbonates increases with increasing cationic size.