Among these,which are canonical structures?
(I) \(CH_{3} -CH=O\)
(II)\( CH_{2}=CH-OH\)
(III) \(CH_{3} -CH-O^{-}\)
(A) I and II
(B) I and III
(C) II and III
(D) All

Base strength of (i) CH_3CH_2^(-) (ii) CH_2=CH^(-) (iii) CH-=C^(-)

Isoelectronic structures among the following structures are : (I) CH_3^+ , (II) H_3O^+ (III) NH_3, (IV) CH_3^- .

The basic strength of underset(I)(CH-=C), underset(II)(CH_(2)=CH), underset(III)(CH_(3)CH_(2)^(-)) will be in order

Arrange the following in the increasing order of recativity with NH_(3) (I) CH_(2) O (II) CH_(3) CHO (III) CH_(3) - CO - Ch_(3) (IV) (I) CH_(2

Among these chain isomers are : (I) CH_(3)-CH_(3)-CH_(2)-CH_(2)-OH (II) CH_(3)-CH_(2)-underset(OH)underset(|)(CH)-CH_(3) (III) CH_(3)-underset(CH_(3))underset(|)overset(OH)overset(|)(C)-CH_(3)

Ease of esterification of following alcohol with HCOOH is (I) CH_(3)-CH_(2)OH" " (II) (CH_(3))_(2)CH-OH (III) (CH_(3))_(3)C-OH

Arrange the following carbanions in decreasing order of stability : (I) CH_(2)^(-)-Cl (II) CH_(2)^(-)-CN (III) CH_(2)^(-)-NO_(2) (IV) CH_(2)^(-)-CH_(3) (A) III>II>I>IV (B) III>II>IV>I

The ease of esterification of the acids HCO OH(I),(CH_(3)CO Oh(II), and CH_(3)CH_(2)C O OH(III) with CH_(3)OH is

Arrange the following acid in decreasing order of their acidic strength : (I) CH_(3)-OH (II) CH_(3)CH_(2)-OH (III) CH_(3)-underset(CH_(3))underset(|)(CH)-OH (IV) CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-OH