JEE Main 202126 AugustEvening Shift
- Exam
- JEE Main
- Year
- 2021
- Date
- 26 August
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- s Block Elements
JEE Main 2021 · 26 August · Evening Shift · Chemistry · s Block Elements
Given below are two statements : one is labelled as Assertion (A)...
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.
Choose the most appropriate answer from the options given below :
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.
Choose the most appropriate answer from the options given below :
Options
- A(A) is true but (R) is false.
- BBoth (A) and (R) are true.
- C(A) is false but (R) is true.
- DBoth (A) and (R) are false.
Correct answer
B. Both (A) and (R) are true.
Step-by-step solution
(i) Stability as size of cation , ionic character
(ii) Solubility in water