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

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 ?

Write the balanced equation for the following:
Action of concentrated nitric acid on copper.

Write the balanced equation for the following:
Action of heat on AgNO₃

How would you separate gold from a mixture of gold and copper filling?

Write down the word equation or balanced equation for the action of concentrated nitric acid on copper.

The following statement is correct only under certain conditions. Rewrite the statement including the appropriate condition(s) and underline it in your answer.
Copper and nitric acid react together to produce nitrogen dioxide.

Choose the correct word from the given options to complete the sentence :
Sulphur can be converted to sulphuric acid using __________ nitric acid.

Write the equation to show the reaction between the following:
Between copper and concentrated nitric acid.

Write the equation of the following reaction.
Sulphur can be converted to sulphuric acid using concentrated nitric acid.

Write equation to show the reaction between the following:
Copper and concentrated nitric acid.

Write equation to show the reaction between the following:
Copper oxide and dilute nitric acid.

Write balanced equation to show the reaction between the sulphur and hot concentrated nitric acid.

Fill in the blank using the appropriate words given below:
Cold, dilute nitric acid reacts with copper to give ______.

Fill in the blank using the appropriate words given below:
Hot, concentrated nitric add reacts with sulphur to form ______.

Write a balanced equation for following :
Action of cold and dilute nitric acid on copper

Write a balanced equation for following :
Action of conc. Nitric acid on sulphur

What happens when
Caustic soda solution is added to Cu(NO₃)₂ solution and product boiled.