Select the molecule which has only one pibond.

• CH3 - CH = CH - CH3

• CH3 - CH = CH - CHO

• CH3 - CH = CH - COOH

• All of these

In the hydrocarbon CH3 - CH2 - CH = CH- CH2 - C≡CH the state of hybridisation of carbon 1,2,3,4 and 7 are in the following sequence.

• sp, sp, sp3 , sp2 , sp3

• sp2 , sp, sp3 , sp2 , sp3

• sp, sp, sp2 , sp, sp3

• none of these

The general formula for alkadiene is

• Cn H2n

• Cn H2n-1

• Cn H2n-2

• Cn Hn-2

The IUPAC name of the Compound is

• 2,3 - Diemethylheptane

• 3- Methyl -4- ethyloctane

• 5-ethyl -6-methyloctane

• 4-Ethyl -3 - methyloctane.

Which one of the following names does not fit a real name?

• 3 - Methyl -3-hexanone

• 4-Methyl -3- hexanone

• 3- Methyl -3- hexanol

• 2- Methyl cyclo hexanone.

The IUPAC name of the compound is

• Pent - 4 - yn-2-ene

• Pent -3-en-l-yne

• pent - 2- en - 4 - yne

• Pent - 1 - yn -3 -ene

IUPAC name of is

• 3,4,4 - Trimethylheptane

• 2 - Ethyl -3, 3- dimethyl heptane

• 3, 4,4 - Trimethyloctane

• 2 - Butyl -2 -methyl - 3 - ethyl-butane.

The IUPAC name of is

• 2,4,4 - Trimethylpent -2-ene

• 2,4,4 - Trimethylpent -3-ene

• 2,2,4 - Trimethylpent -3-ene

• 2,2,4 - Trimethylpent -2-ene

The IUPAC name of the compound is

• 3 - Ethyl -2- hexene

• 3 - Propyl -3- hexene

• 4 - Ethyl - 4 - hexene

• 3 - Propyl -2-hexene

The IUPAC name of the compound is

• 2 - Hydroxypropionic acid

• 2 - Hydroxy Propanoic acid

• Propan - 2- ol -1 - oic acid

• 1 - Carboxyethanol.