(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

What are organic compounds?

What is the Vital force theory? Why was it discarded?

Draw the structure formula of ethyne.

Give a chemical test to distinguish between Saturated and Unsaturated?

Name the compound prepared by the following reaction:

\[\ce{C2H5COONa +NaOH ->}\] 

Name the compound prepared by the following reaction:

\[\ce{CH3I + 2H ->}\]

Name the compound prepared by the following reaction:

\[\ce{C2H5Br + KOH (alcoholic solution) ->}\]

Name the compound prepared by the following reaction:

\[\ce{CO + 2H2 (Zinc oxide catalyst) ->}\]

Name the compound prepared by the following reaction:

\[\ce{CaC2 + 2H2O ->}\]

Write the equation for the following reaction:

Calcium carbide and water

Define isomerism.

Give the IUPAC name of the isomer C₄H₁₀ which has a branched-chain.

A compound X when treated with an organic acid Y (having vinegar-like smell) in the presence of the acid Z, forms a compound P which has a fruity smell.

1. Identify X, Y and Z
2. Write the structural formula of X and Y.
3. What type of compound is P?
4. Name the above reaction.
5. If compounds X and Y both have 2 carbon atoms. Write the reaction.

Name an organic compound which is a solvent for gums and resins.

Convert ethane to acetic acid.

Compound X bubbled through bromine dissolved in carbon tetrachloride (CCl₄):

\[\begin{array}{cc}
\ce{X ->[Br2/CCl4] CH2Br}\\
\phantom{......}|\\
\phantom{...........}\ce{CH2Br}\\
\end{array}\]

1. Draw the structure of X.
2. State your observation during the reaction.

Name the gases which extinguishes burning wooden splinters.

Name the gas which turns moist red litmus blue.

Name the gases which do not affect moist litmus.

Name the gas which: Affects the acidified K₂Cr₂O₇ paper and also turns lime water dirty milky.