MCQ
What should be the weight of $50\%$ $HCl$ which reacts with $100\, g$ of limestone ............. $\% \mathrm{pure}$
- ✓$50$
- B$25$
- C$10$
- D$8$
$\%$ Purity $ = \frac{{50}}{{100}} \times 100 = 50\% $.
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Reason : Chlorination of $CH_4$ takes place in sunlight.
Statement $I : C _{2} H _{5} OH$ and $AgCN$ both can generate nucleophile.
Statement $II : KCN$ and $AgCN$ both will generate nitrile nucleophile with all reaction conditions.
Choose the most appropriate option :
| $Bond$ | $E_{(diss)}(kJ(mol )^{(-1)})$ |
| $C-A$ | $240$ |
| $C-B$ | $328$ |
| $C-C$ | $276$ |
| $C-D$ | $485$ |