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

Give the equation for the preparation of the following salt from the starting material given.
Lead chloride from lead carbonate (two equations)

Name the method used for preparation of the following salts from the list given below:
(i) Sodium nitrate
(ii) Iron (III) chloride
(iii) Lead chloride
(iv) Zinc sulphate
(v) Sodium hydrogen sulphate

List :
(a) Simple displacement
(b) Neutralization
(c) Decomposition by acid
(d) Double decomposition
(e) Direct synthesis

From the list given below, select the word(s) required to correctly complete blanks (i) to (v) in the following passage. The words from the list are to be used only once. Write the answers as (a) (i), (ii) (iii) and so on. Do not copy the passage.

A solution M turns blue litmus red, so it must contain  _______ ions; another, solution O turns red litmus blue and hence, must contain ______ ions.

Using ammonium hydroxide, how would you distinguish between the following pair of ions in solution?
Ferrous ion and Ferric ion.

Name the method used for preparation of the following salt from the list given below:
Zinc ion and Lead ion.

You are provided with PbCO₃, ZnCO₃ and CaCO₃. How will you identify these cations?

Fill in the blank.
The salt which will not react with NH₄OH solution ______[ZnCl₂, CuCl₂ / NH₄Cl/ FeCl₂]

Choose the correct answer from the options given below :
Which salt solution is soluble in excess of NH₄OH

Three test tubes contain calcium nitrate solution, zinc nitrate solution and lead nitrate solution.Describe the effect of Adding ammonium hydroxide to each portion in turn till it is in excess.

State what do you observe when:
Ammonium hydroxide is added to iron (III) sulphate solution.

How would you distinguish between Zn²⁺ and Pb²⁺ ions, using ammonium hydroxide solution?

Write the observation, and balanced equation for the following reaction:
Excess of ammonium hydroxide is added to a substance, obtained by adding hydrochloric acid to silver nitrate solution.

Choose the correct answer from the options given below :
A chloride which forms a precipitate that is soluble in excess of ammonium hydroxide is :

Distinguish between the following pair of compound using the test given within bracket.

Iron (II) sulphate and iron (III) sulphate (using ammonium hydroxide)

Distinguish between the given pair of compounds using the test given within brackets:

A lead salt and a zinc salt (using excess ammonium hydroxide)

State two relevant observation of the following:
Ammonium hydroxide solution is added to copper (II) nitrate solution in small quantities and then in excess

State two relevant observations of the following:

Ammonium hydroxide solution is added to zinc nitrate solution in minimum quantities and then in excess.

The equation for the burning of octane is:

\[\ce{2C8H18 + 25O2 -> 16CO2 + 18H2O}\]

What is the empirical formula of octane?

Name the Following:
Product obtained by the catalytic oxidation of ammonia.

What is the oxidizing agent in ostwald process ?