MCQ
Salicylaldehyde can be prepared from
- APhenol and chloroform
- ✓Phenol, chloroform and sodium hydroxide
- CPhenol, carbon tetrachloride and $ NaOH$
- DNone of these

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$\mathrm{H}_2, \mathrm{He}_2^{+}, \mathrm{O}_2^{+}, \mathrm{N}_2^{2-}, \mathrm{O}_2^{2-}, \mathrm{F}_2, \mathrm{Ne}_2^{+}, \mathrm{B}_2$
