MCQ
White lead is
- A$PbC{O_3}$
- B$PbC{O_3}.PbO$
- ✓$2PbC{O_3}.\,Pb{(OH)_2}$
- D$2PbS{O_4}.PbO$
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(Rounded-off to the nearest integer) $\left[ h =6.63 \times 10^{-34}\, Js , c =3.00 \times 10^{8} \,ms ^{-1}\right.$ $,$ $\left. N _{ A }=6.02 \times 10^{23}\, mol ^{-1}\right]$

| List-$I$ (Compound) | List-$II$ (Colour) |
| $A$ $\mathrm{Fe}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]_3 \cdot \mathrm{xH}_2 \mathrm{O}$ | $I$ Violet |
| $B$ $\left[\mathrm{Fe}(\mathrm{CN})_5 \mathrm{NOS}\right]^{4-}$ | $II$ Blood Red |
| $C$ $[\mathrm{Fe}(\mathrm{SCN})]^{2+}$ | $III$ Prussian Blue |
| $D$ $\left(\mathrm{NH}_4\right)_3 \mathrm{PO}_4 \cdot 12 \mathrm{MoO}_3$ | $IV$ Yellow |
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