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

Equation for that reaction when compound A is bubbled through bromine dissolved in carbon trtrachloride is as follows :
DIAGRAM

State your observation during this reaction

Write a balanced chemical equation for the following:

Burning of ethane in plentiful supply for air.

Write a balanced chemical equation for the following:

Action of water on calcium carbide

Give one test to distinguish between the following pair of chemicals.

Zinc nitrate solution and calcium nitrate solution

Write a balanced chemical equation for the following:

Heating of ethanol at 170^oC in the presence of conc. Sulphuric acid

Fill in the blank.

The compound formed when ethane reacts with hydrogen is _________ (CH₄,C₂H₆,C₃H₆).

Identify the underlined substance.

An organic compound containing -COOH functional group.

State are relevant observations for following reactant:

Addition of ethyl alcohol to acetic acid in presence of conc. H₂SO₄

Give a balanced chemical equation for the following :

Preparation of ethane from sodium propionate

Give a balanced chemical equation for the following :

Action of alcoholic KOH on bromoethane

Identify the term or substance based on the descriptions given below:

Ice like crystals formed on cooling an organic acid sufficiently.

Identify the term or substance based on the descriptions given below:

 Hydrocarbon containing a triple bond used for welding purposes

Identify the term or substance based on the descriptions given below:

The property by virtue of which the compound has the same molecular formula but different structural formulae.

Match the following:

Identify the term or substance based on the descriptions given below:

The compound formed where two alkyl are linked by group

\[\begin{array}{cc}
\ce{O}\\
\ce{-||-}\\
\ce{C}
\end{array}\]

Draw the structural formula for the following:

2, 3-dimethyl butane

Draw the structural formula for the following:

Diethyl ether

Draw the structural formula for the following :

propanoic acid

Give the structural formulae of the following:

2-methyl propane

Salts A, B, C, D and E undergo reactions (i) to (v) respectively. Identify the anion present in these salts on the basis of these reactions. Tabulate your answers in the format given below:
(i) When silver nitrate solution is added to asolution of A, a white precipitate, insoluble in dilute nitric acid, is formed.
(ii) Addition of dilute hydrochloric acid to B produces a gas which turns lead acetate paper black.
(iii) When a freshly prepared solution of ferrous sulphate is added to a solution of C and concentrated sulphuric acid is gently poured from the side of the test, a brown ring is formed.
(iv) When dilute sulphuric acid is added to D, a gas is produced which turns acidified potassium dichromate solution from orange to green.
(v) Addition of dilute hydrochloric acid to E produces an effervescence. The gas produced turns limewater milky but does not affect acidified potassium dichromate solution.