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

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.

State your observation when:

Decomposition of bicarbonates by dil. H₂SO₄

2NaHCO₃ + H₂SO₄ → Na₂SO₄ + 2H₂O + 2CO₂

2KHCO₃ + H₂SO₄ → K₂SO₄ + 2H₂O + 2CO₂

The IUPAC name of Ethylene is ______.

Carbon to carbon double bond is found in ______.

The catalyst preferred in the conversion of Sulphur dioxide to Sulphur trioxide is ______.

Name the compound formed when: Ethene reacts with hydrogen in the presence of a catalyst.

Draw the structural diagram of: 

Ethanoic acid

Draw the structural diagram of 1, 2 dichloroethane.

Complete and balance the following chemical equation:

C₂H₂ + I₂ →

State the following:

Products are formed when ammonia is burnt in excess of oxygen.

Name the following organic compound:

The compound formed by complete chlorination of ethyne.

State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.

State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.

State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.

Write an equation for the reactions of hydrochloric acid on manganese (IV) oxide.

Explain the following:

H₃PO₃ is not a tribasic acid.