CBSE 2023 · Region 5 · Set 2 · Q26

(a)

On heating 'X' at $\displaystyle 373$ K, it loses water molecules and becomes 'Y'. 'Y' is a substance which doctors use for supporting fractured bones in the right position.

(i)

Identify 'X' and 'Y'.

(ii)

How can ' X ' be reobtained from ' Y '?

(b)

Two solutions M and N give Red and Blue colour respectively with a universal indicator.

(i)

In which solution will the hydrogen ion concentration be more? Justify your answer.

(ii)

If both M and N solutions are mixed and the resultant mixture is tested with a universal indicator, it turns green. What is the nature of the salt formed ? Justify your answer.