MCQ
In esterification, the reactivity of alcohols is
- ✓$1^o > 2^o > 3^o$
- B$3^o > 2^o > 1^o$
- CSame in all cases
- DNone of these
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$C{H_3}COOH\xrightarrow{{SOC{l_2}}}A\mathop {\xrightarrow{{Benzene}}}\limits_{Anhr.\,AlC{l_3}} B\xrightarrow{{HCN}}C\xrightarrow{{HOH}}D.$
|
List $I$ (Anion) |
List $II$ $($Gas evolved on reaction with dil $H _{2} SO _{4})$ |
| $A.$ $CO _{3}^{2-}$ | $I.$ Colourless gas which turns lead acetate paper black |
| $B.$ $S^{2-}$ | $II.$ Colourless gas which turns acidified potassium dichromate solution green. |
| $C.$ $SO_{3}{ }^{2-}$ | $III.$ Brown fumes which turns acidified KI solution containing starch blue. |
| $D.$ $NO _{2}^{-}$ | $IV.$ Colourless gas evolved with brisk effervescence, which turns lime water milky. |
Choose the correct answer from the options given below
${C_6}{H_5}CHO+X\mathop {\xrightarrow{{(i)\,Zn\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}}\limits_{(ii)\,HOH/N{H_4}Cl} \begin{array}{*{20}{c}}
{OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{{C_6}{H_5} - CH - C{H_2} - COO{C_2}{H_5}}
\end{array}$
$[X]$ will be: