12. ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES[KARNATAKA CET EXCLUSIVE]
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CHEMISTRY(KCET)

285321 Which of the following compounds possesses the "C-H" bond with the lowest bond dissociation energy?

1 Benzene
2 2,2-Dimethylpropane
3 Toluene
4 n-Pentane
Karnataka CET 2015
CHEMISTRY(KCET)

285322 IUPAC name of the compound,

is

1 1-bromobut-2-ene
2 2-bromo-2-butene
3 bromobutene
4 1-bromobut-3-ene.
Karnataka CET 2015
CHEMISTRY(KCET)

285323 Carbocation as an intermediate is likely tobe formed in the reaction:

1 Propene\(+\mathrm{Cl}_2 \xrightarrow{\text { hv }}\) 2-Chloropropane
2 Acetone\(+\mathrm{HCN} \xrightarrow{-\mathrm{OH}}\)
Acetonecyanohydrin
3 Ethyl bromide + Aq.\(\mathrm{KOH} \xrightarrow{\Delta}\)
Enthyl alcohol
4 Hexane\(\xrightarrow{\text { Anhy. } \mathrm{AlCl}_3 / \mathrm{HCl}}\)
2-Methylpentane
Karnataka CET 2014
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CHEMISTRY(KCET)

285321 Which of the following compounds possesses the "C-H" bond with the lowest bond dissociation energy?

1 Benzene
2 2,2-Dimethylpropane
3 Toluene
4 n-Pentane
Karnataka CET 2015
CHEMISTRY(KCET)

285322 IUPAC name of the compound,

is

1 1-bromobut-2-ene
2 2-bromo-2-butene
3 bromobutene
4 1-bromobut-3-ene.
Karnataka CET 2015
CHEMISTRY(KCET)

285323 Carbocation as an intermediate is likely tobe formed in the reaction:

1 Propene\(+\mathrm{Cl}_2 \xrightarrow{\text { hv }}\) 2-Chloropropane
2 Acetone\(+\mathrm{HCN} \xrightarrow{-\mathrm{OH}}\)
Acetonecyanohydrin
3 Ethyl bromide + Aq.\(\mathrm{KOH} \xrightarrow{\Delta}\)
Enthyl alcohol
4 Hexane\(\xrightarrow{\text { Anhy. } \mathrm{AlCl}_3 / \mathrm{HCl}}\)
2-Methylpentane
Karnataka CET 2014
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CHEMISTRY(KCET)

285321 Which of the following compounds possesses the "C-H" bond with the lowest bond dissociation energy?

1 Benzene
2 2,2-Dimethylpropane
3 Toluene
4 n-Pentane
Karnataka CET 2015
CHEMISTRY(KCET)

285322 IUPAC name of the compound,

is

1 1-bromobut-2-ene
2 2-bromo-2-butene
3 bromobutene
4 1-bromobut-3-ene.
Karnataka CET 2015
CHEMISTRY(KCET)

285323 Carbocation as an intermediate is likely tobe formed in the reaction:

1 Propene\(+\mathrm{Cl}_2 \xrightarrow{\text { hv }}\) 2-Chloropropane
2 Acetone\(+\mathrm{HCN} \xrightarrow{-\mathrm{OH}}\)
Acetonecyanohydrin
3 Ethyl bromide + Aq.\(\mathrm{KOH} \xrightarrow{\Delta}\)
Enthyl alcohol
4 Hexane\(\xrightarrow{\text { Anhy. } \mathrm{AlCl}_3 / \mathrm{HCl}}\)
2-Methylpentane
Karnataka CET 2014
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