Test: Introduction to Alkenes


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Attempt Test: Introduction to Alkenes | 5 questions in 10 minutes | Mock test for NEET preparation | Free important questions MCQ to study Topic-wise MCQ Tests for NEET for NEET Exam | Download free PDF with solutions
QUESTION: 1

Identify the addition reaction which is not undergone by the alkenes

Solution:

Alkenes do not undergo mercuration, indeed they undergo oxymercuration , a process in which an alkene is converted into an alcohol.

QUESTION: 2

Geometrical isomerism is a type of:

Solution:

Geometric isomerism (also known as cis-trans isomerism or E-Z isomerism) is a form of stereoisomerism. This page explains what stereoisomers are and how you recognise the possibility of geometric isomers in a molecule.

QUESTION: 3

Wide range of different hydrocarbons are separated into fractions

Solution:

The hydrocarbons which condense over a temperature range (for example, between 50C and 100C), are called a fraction because they are parts of a whole. Each of the fractions has special uses.Separating the mixture of substances in crude oil into fractions by evaporation and condensation is fractional distillation.

QUESTION: 4

Out of the following compounds , which will be have a zero dipole moment.

Solution:

In case of trans-1,2-dichloroethylene

The net dipole moment is zero but in case of cis -1,2 -dicholorethylene.
There is some resultant dipole moment.

QUESTION: 5

Due to presence of double bonds, alkenes are

Solution:

Hydrocarbons are compounds made from carbon and hydrogen atoms joined by covalent bonds. Alkanes are saturated - they have only single bonds. Alkenes have a double bond - they are unsaturated. These polymer molecules are saturated.

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