MCQ
Example of an intrinsic colloid is:
- A$\mathrm{As}_2 \mathrm{~S}_3 \mathrm{sol}$
- B$S$ sol
- ✓Egg albumin
- D$\mathrm{Fe}(\mathrm{OH})_2 \mathrm{sol}$
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$Al_{(s)}\, | Al^{+3}\, (0.1\,M)||Fe^{+2}\, (0.001\,M)|Fe_{(s)}$
If $E_{A{l^{ + 3}}/Al}^o = - 1.66\,V$ and $E_{Fe/F{e^{ + 2}}}^o = + 0.44\,V$
$(I)$ $B + AN{O_3} \longrightarrow BN{O_3} + A$
$(II)$ $A + HCl \longrightarrow ACl + \frac{1}{2}\,{H_2}$
$(III)$ $D + ECl \longrightarrow DCl + E$
$(IV)$ $D + HN{O_3} \longrightarrow {H_2}$ gas is not evolved
($X$ is a halogen)