Compound of molecular formula `C_(4)H_(8)O` may have functional group - (a) Alcohol (b) Ether (c) Carboxylic acid (d) Aldehyde
`a,b,c`
`b,c&d`
`a,b,&d`
`a,b,c&d`

An organic compound (A) (molecular formula C_(8)H_(16)O_(2)) was hydrolysed with dilute sulphuric acid to give a carboxylic acid (B) and an alcohol (C ). Oxidation of (C ) with chromic acid produced (B). (C ) on dehydration gives but-1-ene. Write equations for the reactions involved.

Compound (A) (C_(8)H_(8)O) on treatment with NH_(2)OH.HCl gives (B) and (C ). (B) and (C ) rearrange to give (D) and E, respectively, on treatment with acid. (B), (C ), (D), and (E ) are all isomers of molecular formula (C_(8)H_(9)NO) . When (D) is boiled with alcoholic KOH, an oil (F) (C_(6)H_(7)N) separates out. (F) reacts rapidly with CH_(3)COCl to give back (D). On the other hand, (E ) on boiling with alkali followed by acidification gives a white solid (G) (C_(7)H_(6)O_(2)) . Identify (A) to (G).

Two compounds A and B with same molecular formula (C_(3)H_(6)O) undergo Grignard’s reaction with methylmagnesium bromide to give products C and D. Products C and D show following chemical tests.

Three organic compounds A,B and C have the following molecular formulae: A C_(4)H_(8)O_(2) B C_(4)H_(10)O C C_(4)H_(8)O (a) Which compound contains an alcohol group ? Write its name and structural formula. (b) Which compound contains a carboxyl group? Write its name and structural formula (c ) Which molecular formula can represent an aldehyde as well as a ketone ? Write the names and structural formulae of the aldehyde and ketone represented by this molecular formula.

If a/b = c/d , then ( ( a +c )/( b + d ) ) is equal to

An ether, (A) having molecular formula, C_(6)H_(14)O , when treated with excess of HI produced two alkyl iodides which on hydrolysis yield compounds (B) and (C ). Oxidation of (B ) gives an acid (D), whereas oxidation of (C ) results in the formation of a mixed ketone, (E ) . Give graphic representation of (A) to (E).