PbCl2 + Cl2→ PbCl4. This is because Pb can show +2 oxidation state more easily than +4 due to inert pair effect.
PbCl4→ PbCl2 + Cl2 Because Pb2+ is more stable than Pb4+ due to inert pair effect.
PbI4does not exist because I- ion being a powerful reducing agent reduces Pb4+ ion to Pb2+ ion in solution.
Pb4+ + 2I– → Pb2+ + I2
<ul><li>PbCl<sub>2 </sub>+ Cl<sub>2</sub>→ PbCl<sub>4</sub>.<br>This is because Pb can show +2 oxidation state more easily than +4 due to inert pair effect.</li><li>PbCl<sub>4</sub>→ PbCl<sub>2</sub> + Cl<sub>2</sub><br>Because Pb<sup>2+</sup> is more stable than Pb<sup>4+</sup> due to inert pair effect.</li><li>PbI<sub>4</sub>does not exist because I<sup>-</sup> ion being a powerful reducing agent reduces Pb<sup>4+</sup> ion to Pb<sup>2+</sup> ion in solution.</li></ul><p>Pb<sup>4+</sup> + 2I<sup>–</sup> → Pb<sup>2+</sup> + I<sub>2</sub></p>
Proteins on hydrolysis gives α-amino acid because α-amino acids are building block of proteins. It is also fact that amino acids contain both –NH2 and –COOH group.
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