Alcohols Phenol...

$$C_{2}H_{5}OH\overset{X}{\rightarrow}C_{2}H_{4}$$

Which reagent can be used to convert ethanol to diethyl ether?

Assertion: Dehydration of alcohols can be carried out with conc. $$H_{2}SO_{4}$$ but not with conc. $$HCl$$.
Reason: $$H_{2}SO_{4}$$ is dibasic while $$HCl$$ is monobasic.

Which group can be completely displaced by a halogen group?

$$(CO+H_{2})+H_{2}\overset {673k,300atm,/Cr_{2}O_{3}-ZnO} {\rightarrow}$$ 
The above shown reaction may by used for manufacture of:

The most suitable method of separation of equal ($$1:1$$) mixture of ortho-nitrophenol and para-nitrophenol is:

The compound in which hydrogen bonding is not possible is:

Which one of the following reagents can not cause $$C- O$$ bond fission in alcohols?

Dehydration of alcohols can be done by using:

Which of the following pairs of reagents will not form ether?