MCQ
Ethylbenzene reacts with Cl2 in sunlight to give:
- A1-Chloro-1-phenylethane
- B1-Chloro-2-phenylethane
- C4-Chloroethylbenzene
- D3-Chloroethylbenzene
Explanation:
Reaction:
ph−CH2CH3 + Cl2 $\xrightarrow{\text{sunlight}}$ ph−CH(Cl)−CH3
This is a substitution reaction where chlorine replaces one hydrogen atom to form 1-chloro-1-phenylethane.
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$S{O_2} + \frac{1}{2}{O_2} \to S{O_3}$
$\text{Cu}^{2+}/\text{Cu}=+0.34;\text{Ag}^+/\text{Ag}=+0.80\text{V}$
| List-$I$ | List-$II$ |
| $P$ In process $I$ | $1$ Work done by the gas is zero |
| $Q$ In process $II$ | $2$ Temperature of the gas remains unchanged |
| $R$ In process $III$ | $3$ No heat is exchanged between the gas and its surroundings |
| $S$ In process $IV$ | $4$ Work done by the gas is $6 P _0 V _0$ |

