Litharge is not commonly used in:

1. manufacture of special glasses

2. glazing pottery

3. preparing paints

4. lead storage battery

When $Pb{O}_2$ reacts with conc. $HN{O}_3$, the gas evolved in

(1) $N{O}_2$

(2) $O_2$

(3) $N_2$

(4) $N_{2}O$

1. $\mathrm{PbO,\; N₂,\; O₂}$

2. Pb(NO₂)₂, O₂

3. $\mathrm{PbO,\; NO₂,\; O₂}$

4. $\mathrm{Pb,\; N₂,\; O₂}$

Aluminium chloride in acidified aqueous solution forms a complex 'A'.
The formula of A and hybridisation state of Al in 'A' is respectively:

1. [Al(H₂O)₆]³⁺, sp³d²

2. [Al(H₂O)₄]³⁺, sp³

3. [Al(H2O)4]3+, dsp2

4. [Al(H₂O)]³⁺, d²sp³

The compound among the following that used in cosmetic surgery is:

1. Silica

2. Silicates

3. Silicones

4. Zeolites

Lead may be replaced from its salt solution by:

(1) Zn

(2) Au

(3) Ag

(4) Cu

Compound of lead used in match industry is:

(1) PbO

(2) $Pb{O}_2$

(3) $PbC{l}_2$

(4) None of these

Lead pipes are corroded by:

(1) $H_{2}S{O}_4$

(2) HCl

(3) $C{H}_{3}COOH$

(4) Pure water

Which is not used as pigment in paints?

(1) Lead dioxide

(2) White lead

(3) Lead chromate

(4) $P{b}_3{O}_4$

Find the amphoteric oxide among the following.