MCQ
Tautomerism take place in :-
  • A
    $i$ and $iii$
  • B
    $i, ii, iii$
  • $i, iii, iv$
  • D
    $iii$ only

Answer

Correct option: C.
$i, iii, iv$
c

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

An atom has $2$  electrons in $K$ shell, $8$ electrons in $L$ shell and $6 $ electrons in $M$ shell. The number of $s$-electrons present in that element is
The difference in the oxidation numbers of the two types of sulphur atoms in $\mathrm{Na}_2 \mathrm{~S}_4 \mathrm{O}_6$ is
How many litres of $C{O_2}$ at $STP $ will be formed when $100\,ml$ of $0.1\,M\,{H_2}S{O_4}$ reacts with excess of $N{a_2}S{O_3}$
The total number of acylic isomers including the stereoisomers with the molecular formula ${C_4}{H_7}Cl$
The following equilibria are given :
$N_2 + 3H_2  \rightleftharpoons  2NH_3 ; K_1$
$N_2 + O_2  \rightleftharpoons  2NO ; K_2$
$H_2 + \frac{1}{2}O_2  \rightleftharpoons  H_2O; K_3$

The equilibrium constant of the reaction $2N{H_3} + \frac{5}{2}{O_2} \rightleftharpoons 2NO + 3{H_2}O$ in terms of $K_1, K_2$ and $K_3$ is

Consider the reactions $C(s) + 2{H_2}(g) \to C{H_4}(g),\Delta H = - x\,kcal$

$C(g) + 4H(g) \to C{H_4}(g),\,\Delta H = - {x_1}\,k\,cal$

$C{H_4}(g) \to C{H_3}(g) + H(g),\,\Delta H = + y\,k\,cal$

The bond energy of $C - H$ bond is

What is $\ce{pH}$ of resulting solution when equal volume when equal of $0.1M ,\ce{NaOH}$ and $0.01M, \ce{HCl}$ are mixed? $[\log 4.5 = 0.65]$
Consider the reaction ${H_2}S{O_3}\left( {aq} \right) + S{n^{4 + }}\left( {aq} \right) + {H_2}O\left( l \right) \to S{n^{2 + }}\left( {aq} \right) + HSO_4^ - \left( {aq} \right) + 3{H^ + }\left( {aq} \right)$ Which of the following statements is correct?
Geometrical isomers differ in
The atomic weight of an element is double its atomic number. If there are four electrons in $2p$ orbital, the element is