[" 123."CH_(2)(Cooc_(2)H_(5))_(2),CH_(3)coc H_(2)CO_(2)C_(2)H_(5),(CH_(3)CO)_(2)CH_(2),R-C_(5)=CH:],[quad (a)R>Q>P>S(b)P>R>Q>S(c)S>R>Q>P(d)P>Q>R>S]

CH_(2)underset((P))((COOC_(2)H_(5))_(2),CH_(3)COOH_(2)underset((Q))CO_(2))C_(2)H_(5),underset((R))((CH_(3)CO)_(2)CH_(2),R-underset((S))C-=CH:

CH_(3)COOH + C_(2)H_(5)OH overset(X) to CH_(3)COOC_(2)H_(5) +H_(2)O ,X is

Correct name for (C_(2)H_(5))_(2)C = C(CH_(3))CH_(2)CO_(2)H is:

Amongest the following maximum number of compounds which give iodoform test are CH_(3)CONH_(2),CH_(3)COCl, CHCOOH,(CH_(3)CO)_(2) C_(6)H_(5)COCH_(3),C_(6)H_(5)CH_(2)CHO , C_(6)H_(5)(OH)CH_(3) C_(6)H_(5)CH_(2)CH_(2)OH,(CH_(3))_(2)C=CHCOCH_(3) CH_(3)COCH_(2)COOC_(2)H_(5)

The number of amines having pK_(b) less than C_(6)H_(5)NH_(2) among the following is P-CH_(3) C_(6)H_(5)NH_(2), o-CH_(3)C_(6)H_(4)NH_(2), m-CH_(3)C_(6)H_(4)NH_(2), C_(6)H_(5)N (CH_(3)) _(2), C_(6)H_(5)NHCH_(3), p-NO_(2)C_(6)H_(4)NH_(2), p-CIC_(6)H_(4)NH_(2), C_(6)H_(5)CH_(2)NH_(2)

C_(6)H_(5)underset((P))CH_(2)OH_(2),C_(6)H_(5)underset((Q))COOH,C_(6)H_(5)underset((R))OCH_(3),C_(6)H_(5)underset((S))OH:

An amino acid may be represented by general formula H_(2)N overset(R)overset(|)(CH)-COOH . If R = -CH_(2)C_(6)H_(5) then it is phenylalanine (Phe) and if R = CH_(3) then it is alanine (Ala). Find the sequence of reagents from those given below to synthesize Phe-Ala. (1) ZNHoverset(CH_(3))overset(|)(CH)CO_(2)H , (2) H_(2)N overset(CH_(3))overset(|)(CH)CO_(2)CH_(2)C_(6)H_(5) (3) ZNHoverset(CH_(2)C_(6)H_(5))overset(|)(CH)CO_(2)H (4) H_(2)N overset(CH_(2)C_(6)H_(5))overset(|)(CH)CO_(2)CH_(2)C_(6)H_(5)