Aldehydes Keton...

Reactant $$(A)$$ and product $$(B)$$ are respectively:

Arrange acidity of given four compounds in decreasing order :
(I) $$ CH_{ 3 }-\overset { \overset { O }{ || }  }{ C } -CH_{ 2 }-\overset { \overset { O }{ || }  }{ C-CH_{ 3 } }  $$
(II) $$ CH_{ 3 }-\overset { \overset { O }{ || }  }{ C } -CH_{ 3 } $$
(III) HC≡CH
(IV) $$ CH_3-CHO $$
Select correct answer from the codes given below 

Reaction of the following substance with nitric acid would yield:

IUPAC name of the given compound is:

The compound with the most acidic hydrogen is 

The major product formed in the above reaction is:

The most reactive compound towards formation of cyanohydrin on treatment with $$KCN$$ followed by acidification is:

Molecular formula $$C_{5}H_{10}O$$ can have: 

The product in the following reaction is