MCQ
A blue colouration is not obtained when
- AAmmonium hydroxide dissolves in copper sulphate
- ✓Copper sulphate solution reacts with ${K_4}[Fe{(CN)_6}]$
- CFerric chloride reacts with sodium ferrocyanide
- DAnhydrous $CuS{O_4}$ is dissolved in water
$4N{H_4}OH + CuS{O_4} \to \mathop {[Cu{{(N{H_3})}_4}]}\limits_{{\rm{Deep}}\,{\rm{blue}}} \,S{O_4} + 4{H_2}O$
$\mathop {CuS{O_4}}\limits_{{\rm{Anhydrous}}} + 5{H_2}O \to \mathop {CuS{O_4}}\limits_{{\rm{Blue}}} .5{H_2}O$
$4FeC{{l}_{3}}+3N{{a}_{4}}[Fe{{(CN)}_{6}}]\to \underset{\begin{smallmatrix}
\text{Ferric}\,\text{ferrocyanide} \\
\,\,\,\,\,\text{(Prussian}\,\text{blue)}
\end{smallmatrix}}{\mathop{F{{e}_{4}}[Fe{{(CN)}_{6}}]}}\,+12NaCl$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$M{e_3}SiCl\xrightarrow{{{H_2}O}}A$
$M{e_3}SiCl_2\xrightarrow{{{H_2}O}}B$
$MeSiCl_3\xrightarrow{{{H_2}O}}C$
$(A), (B)$ and $(C)$ are known as ____,____, and ____ respectively in silicones formation
| Item $I$ | Item $II$ |
| $(a)$ Benzaldehyde | $(p)$ Mobile phase |
| $(b)$ Alumina | $(q)$ Adsorbent |
| $(c)$ Acetonitrile | $(r)$ Adsorbate |