Question

Chloride of an element $A$ gives neutral solution in water. In the periodic table, the element $A$ belongs to the:

• A. first group
• B. third group
• C. fifth group
• D. first transition series

Answer 1

The correct option is A first group

The element belongs to the first group,

$2M+C{l}_2\to 2MCl$

$MCl+H_{2}O\to HCl+MOH$ (strong acid + strong base)

So, the solution is neutral.

But, as we move along the period from left to right, chloride becomes acidic.