The chemical formula of lead sulphate is?
A. Pb2SO4
B. Pb2 (SO4)2
C. PbSO4
D. Pb2(SO4)3?
Answer: (C)
Explanation:
PbSO4 (lead(II) sulphate) is a white solid with a microcrystalline appearance. Fast white, milk white, sulfuric acid lead salt, or anglesite are some of the other names for it.
It’s common in automotive battery plates/electrodes because it forms when the battery is depleted (when the battery is recharged, then the lead sulphate is transformed back to metallic lead and sulfuric acid on the negative terminal or lead dioxide and sulfuric acid on the positive terminal). Water does not dissolve lead sulphate well.
Preparation:
Treatment of lead oxide, hydroxide, or carbonate with heated sulfuric acid, or treatment of a soluble lead salt with sulfuric acid, yields lead(II) sulphate. It can also be created by mixing lead nitrate and sodium sulphate solutions together.
Chemical Properties:
Lead(II) sulfate can be dissolved in concentrated HNO3,HCl,H2SO4 to produce acidic salts or complex compounds, and in concentrated alkali to produce soluble tetrahydroxidoplumbate(II)
[Pb(OH)4]2- complexes.
PbSO4(s)+H2SO4(l)⇌Pb(HSO4)2(aq)
PbSO4 (s)+4NaOHaqNa2PbOH4aq+Na2SO4aq
When heated over a certain temperature s 1000°C, lead(II) sulphate decomposes.
PbSO4( s)PbO(s)+SO3( g) .