An organic compound $(X)$ has an empirical formula $\mathrm{C}_4 \mathrm{H}_8 \mathrm{O}$. This gives a pale yellow precipitate with iodine in NaOH solution. What is $X$ ?

Which of the following sets of reagents convert toluene to benzaldehyde?

A. $\mathrm{Cl}_2 \mid h v ; \mathrm{H}_2 \mathrm{O}, \Delta$

B. $\mathrm{KMnO}_4 \mid \mathrm{OH}^{-} ; \mathrm{H}^{+}$

C. $\mathrm{Cl}_2 \mid \mathrm{Fe} ; \mathrm{H}_2 \mathrm{O}$

D. $\mathrm{CrO}_2 \mathrm{Cl}_{21} \mid \mathrm{CS}_2 ; \mathrm{H}_3 \mathrm{O}^{+}$

Match the following reagents with the products obtained when they reacted with a ketone.

List I		List II
A.	$$ \mathrm{C}_6 \mathrm{H}_5 \mathrm{NHNH}_2 $$	i.	Schiff base
B.	$$ \mathrm{NH}_2 \mathrm{OH} $$	ii.	Hydrazone
C.	$$ \mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2 $$	iii.	Oxime
		iv.	Phenyl hydrazone

$$ \text { Correct answer is } $$

$$ \text { Consider the reactions, } $$