Resonance effect is not observed in
\(CH_{2}=CH-CH=CH_{2}\)
\(CH_{2}=CH-CH_{2}^{+}\)
\(CH_{2}=CH-Cl\)
\(CH_{2}=CH-CH_{2}-NH_{2}\)

CH_(2)=CH-CH=CH-CH=CH_(2)

Which among following possess relatively low boiling point \( CH_{3}CH_{2}CH_{2}CH_{2}COOH\) \((CH_{3}CH_{2}CH_{2})_{2}\)O \(CH_{3}(CH_{2})_{5}NH_{2}\) \(CH_{3}(CH_{2})_{5}OH\)

Which of the following are chain isomers? (A) \(CH_{3}CH_{2}CH_{3}\) and \(CH_{3}CH_{2}CH_{2}CH_{3}\), (B) \(CH_{3}CHCl_{2}\)and \(CH_{2}ClCH_{2}Cl\) (C) \(CH_{3}CH_{2}CH_{2}OH\) and \(CH_{3}CH_{2}OH\) (D) \(CH_{3}CH_{2}CH_{2}CH_{3}\) and \((CH_{3})_{2}CHCH_{3}\)

CH_3CH_2CH_2CH(CH=CH_2)CH_2CH_2CH_3 is

Name the isomerism shown by following compounds : \(CH_{3}CH_{2}CH_{2}CH_{2}NH_{2}\),\(CH_{3}CH_{2}NHCH_{2}CH_{3}\),\(CH_{3}CH_{2}N(CH_{3})_{2}\)

In which of the following resonance will be possible? (A) CH_(3)-CH_(2)-CH_(2)-CHO (B) CH_(2)=CH-CH=O (C) CH_(3)COCH_(3) (D) CH_(2)=CH-CH_(2)-CH=CH_(2)

Write the IUPAC name of CH_3-CH_2-CH_2-CH(CH_2-CH_3)-CH(CH_2-CH_2-Br)-CH_2-CH_2-CH_2-CH_3

Which will be the least stable resonation structure: (A) CH_(2)=CH-CH^(+)-CH^(-)-NH_(2) (B) CH_(2)-CH^(+)-CH=CH-NH_(2) (C) CH_(3)-CH=CH-CH_(2)-NH_(2)^+

Write the IUPAC name of CH_3-CH_2-CH_2-CH_2-CH(C(CH_3)_2(CH_2-CH_3))-CH_2-CH_2-CH_2-CH_3

Which of the followig pairs has higher resonance energy: (a). (b). CH_(2)=CH-O-CH=CH_(2)&CH_(2)=CH-NH-CH=CH_(2) (c). CH_(2)=CH-overset(Theta)(N)H&NH=CH-overset(Theta)(N)H