An aqueous solution of a substance on treatment with dilute HCl, gives a white precipitate soluble in hot water. When $H_{2} S$ is passed through the hot solution of the salt in dil HCl, a black precipitate is formed. The salt is

see full answer

Take the SCORE scholarship exam from home and compete for scholarships worth ₹1 crore!*

An Intiative by Sri Chaitanya

${Hg}_{2}^{2 +} salt$

${Cu}_{}^{2 +} salt$

${Ag}_{}^{+} salt$

${Pb}_{}^{2 +} salt$

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

${Pb}^{2 +} in dilute HCl form {PbCl}_{2} (White ppt.)$

${Pb}^{2 +} {inH}_{2} S in presence of dilHCl gives PbS (Black ppt.)$

Watch 3-min video & get full concept clarity