MCQ
Benzene can be obtained in the reaction
- AEthene $+ 1, 3-$butadiene
- ✓Trimerisation of ethyne
- CReduction of $PhCHO$
- DAll of these
✓
Answer
Correct option: B.
Trimerisation of ethyne
b
(b) Benzene can be obtained by polymerisation of acetylene.
(b) Benzene can be obtained by polymerisation of acetylene.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Match List$-I$ with List$-II$
→| List$-I$ | List$-II$ |
| $(A)$ Spontaneous process | $(I)\,\Delta H < 0$ |
| $(B)$ Process with $\Delta P =0 \;\Delta T =0$ | $(II)\,\Delta G _{ T , P } < 0$ |
| $(C)\,\Delta H _{reaction}$ | $(III)$ Isothermal and isobaric process |
| $(D)$ Exothermic process | $(IV)$ [Bond energies of molecules in reactants] - [Bond energies of product molecules] |
Choose the correct answer from the options given below:
The nitration of a compound is due to the
The shape of $s$-orbital is
→How many isomers have the name bromomethylcyclopentane ? (ignoring chirality)
The energy of a $2p $ orbital except hydrogen atom is
→From the following thermochemical equations, find out the heat of ionisation $Z$ for a weak acid $HA$
→$HA \to A^-+ H^+$ , $\Delta H = Z$
$H^+ + OH^-\to H_2O$, $\Delta H = X$
$HA + OH^-\to A^-+ H_2O$, $\Delta H = Y$
Which are correct order
Rank in the order of increasing acidic strength:
The difference between $\Delta H$ and $\Delta U$ $(\Delta H - \Delta U),$ when the combustion of one mole of heptane $(I)$ is carried out a temperature $T$ is equal to
→The solubility of silver chromate in $0.01 \,M$ ${K_2}Cr{O_4}$ is $2 \times {10^{ - 8}}\,mol\,d{m^{ - 3}}$. The solubility product of silver chromate will be
→