MCQ
Prefix 1018 is:
- Agiga
- Bmega
- ✓exa
- Dhecta
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|
List-$I$ (Molecule) |
List-$II$. (Number and types of bond/s between two carbon atoms) |
| $A$. ethane | $I$. one $\sigma$-bond and two $\pi$-bonds |
| $B$. ethene | $II$. two $\pi$-bonds |
| $C$. carbon molecule, $\mathrm{C}_2$ | $III$. one $\sigma$-bond |
| $D$. ethyne | $IV$. one $\sigma$-bond and one $\pi$-bond |
Choose the correct answer from the options given below:

|
LIST $I$ (Precipitating reagent and conditions) |
LIST $II$ (Cation) |
| $A$ $\mathrm{NH}_4 \mathrm{Cl}+\mathrm{NH}_4 \mathrm{OH}$ | $I$ $\mathrm{Mn}^{2+}$ |
| $B$ $\mathrm{NH}_4 \mathrm{OH}+\mathrm{Na}_2 \mathrm{CO}_3$ | $II$ $\mathrm{Pb}^{2+}$ |
| $C$ $\mathrm{NH}_4 \mathrm{OH}+\mathrm{NH}_4 \mathrm{Cl}+\mathrm{H}_2 \mathrm{~S}$ gas | $III$ $\mathrm{Al}^{3+}$ |
| $D$ dilute $\mathrm{HCl}$ | $IV$ $\mathrm{Sr}^{2+}$ |
Choose the correct answer from the options given below: