Q66 / 200 · NEET 2023 (Manipur) · Chemistry
Given below are two statements:
Statement I :
Hydrated chlorides and bromides of $\mathrm{Ca}, \mathrm{Sr}$ and $\mathrm{Ba}$ on heating undergo hydrolysis.
Statement II :
Hydrated chlorides and bromides of $\mathrm{Be}$ and $\mathrm{Mg}$ on heating undergo dehydration.
In the light of the above statements, choose the correct answer from the options given below :
- ABoth Statement I and Statement II are true.
- Correct answerBBoth Statement I and Statement II are false.
- CStatement I is correct but Statement II is false.
- DStatement I is incorrect but Statement II is true.
Solution
Since hydrated chlorides and bromides of $\mathrm{Ca}, \mathrm{Sr}$ and $\mathrm{Ba}$ are ionic in nature they will get dehydrated on heating and hydrolysis will not take place, while chloride and bromide of Be and Mg has covalent nature hence, they will get hydrolysed.
Hence, the correct answer is option: 'B'.