The order of stability of the alkenes
`underset(I)(R_(2)C=CR_(2)') underset(II)(R_(2)C=CHE) underset(III)(R_(2)C=CH_(2)')underset(IV)(RCH=CHR,) "and" underset(V)(RCH=CH_(2))`
is -

The order of stability of the alkenes underset(I)(R_(2)C=CR_(2)') underset(II)(R_(2)C=CHR), underset(III)(R_(2)C=CH_(2)')underset(IV) (RCH=CHR,) "and" underset(V)(RCH=CH_(2)) is -

The decreasing order of stability of the following cations is underset(I)(CH_(3)overset(+)(C)H_(2)) , underset(II)(H_(2)C=overset(+)(C)H) , underset(III)(H-C-=overset(+)(C)) , underset(IV)(H_(3)C-overset(+)(C)=0)

The order of stability of the following carbocations underset((I))(CH_(2)=overset(+)(C)H-CH_(2)) , underset((II))(CH_(3)-CH_(2)-overset(+)(C )H_(2))

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

The order of stability of the following carbocations: underset("I")(CH_(2)C=CH-overset(o+)CH_(2))" , "underset("II")(CH_(3)-CH_(2)-overset(o+)CH_(2))" , "underset("III")(C_(6)H_(5)-overset(o+)CH_(2))

Arrange the following alkenes in the decreasing order of stability: (I) underset(CH_(3)C=CHCH_(3))underset(|)(CH_(3)) (II) underset(CH_(3)CHCH=CH_(2))underset(|)(CH_(3)) (III) underset(CH_(2)=CHCH_(2)CH_(3))underset(|)(CH_(3))

Arrange following compounds in decreasing order of their dipole moment. underset("I")(CH_(3)-CH_(2)-NO_(2))" "underset("II")(CH_(3)-CH_(2)-NH_(2))" "underset("III")(CH_(3)-CH_(2)-F)" underset("IV")(CH_(3)-CH_(2)-C-=N)

Arrange the following carbanions in decreasing order of stability: underset((I))(.^(Theta)(CH_(2))-Cl) , underset((II))(.^(Theta)(CH_(2))-CN) , underset((III))(.^(Theta)(CH_(2))-NO_(2)) , underset((IV))(.^(Theta)CH_(2)-CH_(3))

Arrange the following free radicals in order of stability underset(I)underset()((CH_(3))_(3)overset(cdot)C)" "underset(II)underset()((CH_(3))_(2)overset(cdot)CH)" "underset(III)underset()(CH_(3)overset(cdot)CH_(2))" "underset(IV)underset()(overset(cdot)CH_(3))