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

Name: Two bases which are not alkalis but dissolve in strong alkalis.

Name a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.

Name the chloride of a metal which is soluble in excess of ammonium hydroxide.

Name : A yellow monoxide that dissolves in hot and concentrated caustic alkali.

Name a compound containing zinc in the anion.

Fill in the blank.
The hydroxide which is soluble in excess of NaOH is _________ [Zn(OH)₂ / Fe(OH)₃ / Fe(OH)₂].

Fill in the blank.
The substance/s which react with hot conc. NaOH solution and undergoes a neutralization reaction ______ [Al₂O₃ / Al / Al(OH)₃]

Fill in the blank.
To distinguish soluble  salts of zinc and lead ______ [NaOH / NH₄OH]can be used.

Choose the correct answer from the options given below :
Metal + alkali → salt + _________

When ammonium hydroxide is added to solution B, a pale blue precipitate is formed. This pale blue precipitate dissolves in excess ammonium hydroxide to give an inky blue solution. Name the cation present in solution B. What is the probable colour of solution B?

What do you see when sodium hydroxide solution is added to zinc sulphate solution, till it is in excess?

Choose the correct answer:
The metal oxide which can react with acid as well as alkali is:

Write the equation for the following reaction :
Zinc oxide is treated with sodium hydroxide solution.

Name the main constituent metal in the following alloys:

Duralumin

Name the main constituent metal in the following alloy:
Stainless steel

Name the following:
Gas obtained by treating metals with hydrochloric acid.

Name :
Two colourless gases which when mixed produce a white solid.

Name the drying agent used to dry HCl gas.

How is the gas collected and why?

Describe an experiment to prove the following:
HCI gas is heavier than air.