Question

All common metal chlorides are soluble in water except those of:

• A. zinc, silver and mercury
• B. lead, silver and mercury
• C. aluminium, iron and copper
• D. antimony, arsenic and cadmium

Answer 1

Answer: (B)

All common metal chlorides are soluble in water except those of lead, silver and mercury. Thus, lead dichloride, silver chloride and mercuric chloride and mercurous chloride will form a precipitate whereas sodium chloride, potassium chloride etc are soluble in water.
$A{g}^{+}+C{l}^{-}\to AgCl\downarrow$