When `3,3-`dimethyl`-2-`butanol is heated with `H_(2)SO_(4)` the major product obtained is

When 3,3-dimethyl butan-2-ol is heated with conc. H_(2)SO_(4) , then main product formed is :

When 3,3 -dimethyl '-2' -butanol is heated with 'H_2 SO_4', the major product is 3,3 -dimethyl-1-butene 2,3 -dimethyl-2-butene 2,3 -dimethyl-1-butene

When 2-methyl-2-butanol is heated with conc . H_(2) SO_(4) then main product formed is :

When 2-methyl-2-butanol is heated with conc . H_(2) SO_(4) then main product formed is :

Assertion : When 2, 3-dimethyl butane-2, 3-diol is treated with dil. H_(2)SO_(4) , the major product is pinacolone. Reason : The reaction proceeds via carbocation intermediate and its rearrangement.

When ethanol is heated with conc. H_(2)SO_(4) at 140^(@)C (431K), the product obtained is: