Increasing order of the following stability is :
`CH_(3)underset((I))CH=CH_(3)`
`CH_(3)underset((II))CH_(2)CH=CH_(2)`
`(CH_(3))_(3)underset((IV))C CH=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))

CH_(3)-underset(CH_(2))underset(||)(C )-CH_(2)OH ii CH_(3)-CH=CH-CHO

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))):}

Write the IUPAC names of the following compounds. (i) CH_(3)-underset(CH_(3))underset(|)(CH)-underset(CH_(2)-CH_(3))underset(|)(CH)-CH_(2)-CH_(3) (ii) CH_(3)-CH_(2)-underset(COOH)underset(|)(CH)-CH=CH_(2) (iii) HOOC-underset(CH_(3))underset(|)overset(CHO)overset(|)C-CH_(2)-CH_(2)-CH_(2)-CH_(3)

The order of stability of the following tautomeric compound is underset("(I)")(CH_(2)=C(OH)-CH_(2)-CO-CH_(3)) underset("(II)")(rarrCH_(3)-CO-CH_(2)-CO-CH_(3)) underset("(III)")(rarrCH_(3)-C(OH)=CH-CO-CH_(3))

The order of stability of the following tautomeric compound is underset("(I)")(CH_(2)=C(OH)-CH_(2)-CO-CH_(3)) underset("(II)")(rarrCH_(3)-CO-CH_(2)-CO-CH_(3)) underset("(III)")(rarrCH_(3)-C(OH)=CH-CO-CH_(3))

List the following carbocations in the order of decreasing stability : CH_3 underset(underset(CI)|) CH CH_2 CH_(2)^(+) , CH_3 underset(underset(CH_3)|) CH CH_2 CH_(2)^(+), CH_3 CH_2 underset(underset(CI)|) CH CH_(2)^(+)