(English Medium) ICSE Class 10 - CISCE Important Questions

Define catenation.

 Ethane, methane, ethene, ethyne. (In the increasing order of the molecular weight) 

What is homologous series?

The unsaturated hydrocarbons undergo ______.

Identify the gas evolved when sodium propionate is heated with sodalime

Carbon to carbon double bond is found in ______.

Complete and balance the following chemical equation:

C₂H₆ + O₂ →

Name the following organic compound:

The first homologue whose general formula is C_nH_2n.

Study and complete the following table:

Give the structural formula of the following organic compound:

2-chlorobutane

Give the structural formula of the following organic compound:

But-2-yne

Name the following:

Group of organic compounds where the successive members follow a regular structural pattern, successive compounds differ by a 'CH₂' group.

State the term for the following:

The group obtained by removing one hydrogen atom from the parent alkane.

Give the IUPAC name of the organic compound represented by the structural formula given below:

\[\begin{array}{cc}
\ce{H}\phantom{...}\ce{Cl}\phantom{..}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\phantom{....}|\\
\ce{H - C - C - C - C - C - H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\phantom{....}|\\
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{Cl}\phantom{..}\ce{H}\phantom{...}\ce{H}\end{array}\]

Give the IUPAC name of the organic compound represented by the structural formula given below:

\[\begin{array}{cc}
\phantom{.}\ce{H\phantom{...}H\phantom{...}O}\phantom{..}\\
\phantom{.}|\phantom{....}|\phantom{....}||\phantom{..}\\
\ce{H - C - C - C - OH}\\
\phantom{}|\phantom{....}|\phantom{......}\\
\phantom{}\ce{H\phantom{...}H}\phantom{......}
\end{array}\]

The compound which does not have a double bond in its structure.

The compound in its pure form turns into an ice like solid on cooling.

The compound which is used for artificial ripening of fruits.

Draw the structural diagram for the following compound.

2,2 dibromo butane

The structures of six organic compounds are shown:

1. Identify two of the compounds that are members of the same homologous series but are not isomers.
2. Which two compounds are isomers of each other?
3. F can be prepared from D. Give a chemical equation for the reaction.