Aless stable carbocation can rearrange to a more stable carbocation by shift of a hydrogen atom or an alkyl group, these rearrangements are , respectively. alcohols and ethers are both common products dehydration of secondary and tertiary alcohols occurs via , while dehydration of primary alcohols follows . the functional group known a hydroxyl group (oh group) bonded to an sp^3 hybridized carbon atom alcohols undergo dehydration in the presence of strong acids, such as sulfuric acid (h_2so_4) or (t_3oh), to

hydride and alkyl shift

common product of water.

Explanation:

Alcohols (ROH) can be thought of as derivatives of water in which one of the hydrogen atoms has been replaced by an alkyl group. If both of the hydrogen atoms are replaced by alkyl groups, we get an ether (ROR). These compounds are named by adding the word ether to the names of the alkyl groups.

The order of the ease of dehydration of alcohols is: tertiary > secondary > primary. Secondary and tertiary alcohols are best dehydrated by dilute sulfuric acid. By heating an alcohol with concentrated sulfuric acid at 453 K (180°C).

the answers would be

the first one and the second one