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 carbanions in decreasing order of stability: ""^(Ө)underset(" "(I))(CH_(2))-Cl " """^(Ө)underset(" "(II))(CH_(2))-CN" """^(Ө)underset(" "(III))((CH_(2))-NO_(2)" """^(Ө)underset(" "(IV))(CH_(2))-CH_(3)

Arrange the following carbanions in decreasing order of stability: CH_(2)underset((P))=overset(Ɵ)CH Ph-underset((Q))overset(Ɵ)CH_(2) CH_(2)=underset((R))CH-overset(Ɵ)CH_(2)

Arrange the following halides in the decreasing order of S_(N^(1)) reactivity : underset((I))(CH_(3)CH_(2)CH_(2)Cl), underset((II)) (CH_(2)=CHCH(Cl)CH_(3)), underset((III))(CH_(3)CH_(2)CH(Cl)CH_(3))

Arrange the following according to increasing stability: underset((I))(CH_(3)CH_(2)CH_(2)overset(+)(CH_(2))) , underset((II))((CH_(3))_(3)overset(+)(C)) , underset((III))(CH_(3),CH_(3)CH_(2)overset(+)(CH_(3)))

Arrange the following according to increasing stability: underset((I))(CH_(3)CH_(2)CH_(2)overset(+)(CH_(2))) , underset((II))((CH_(3))_(3)overset(+)(C)) , underset((III))(CH_(3),CH_(3)CH_(2)overset(+)(CH_(3)))

Arrange the following carbocations in order of increasing stability : {:(underset("(I)")((CH_(3))_(3)Coverset(+)CH_(2))", "underset("(II)")((CH_(3))_(3)overset(+)C)","),(underset("(III)")(CH_(3)CH_(2)overset(+)CH_(2))", "underset("(IV)")(CH_(3)overset(+)CHCH_(2)CH_(3))):}

Arrange the following compounds in the decreasing order of the boiling point: underset(I)(CH_(3)Br) " "underset(II)(CH_(3)CH_(2)Br)" "underset(III)(CH_(3)CH_(2)CH_(2)Br) CH_(3)CH_(2)CH_(2)CH_(2)Br

Arrange the following halides in the decreasing order of S_N1 reactivity: CH_3underset((I))CH_2CH_2Cl CH_2=CHunderset((II))CH(Cl)CH_3 , CH_3CH_2underset(III)CH(Cl)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)