Name the acid on mixing with Lead Nitrate produces a white precipitate which remains insoluble on heating?

Dear student,

Sulphuric acid is the acid which on mixing with lead nitrate solution produces a white precipitate which is insoluble even on heating.
Equation is:

$H_{2}S{O}_4 + Pb(N{O}_3{)}_2 \to PbS{O}_4 + N_2$

Regards