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

What do you observe when?
Scrap zinc is heated with conc. HNO₃?

What happens when (Given balanced equation) :
Sulphar is added to hot and conc. HNO₃?

Under what conditions does ethane get converted to ethyl alcohol?

What are the main sources of alkanes and why they are known as saturated hydrocarbons?

What is greenhouse gas? What is the contribution of methane in causing greenhouse effect?

How many covalent bonds are present in ethane?

What happens when (Given balanced equation):
Nitric acid is added to Kl (aq)?

What happen when (Given balanced equation) :
Nitric acid is dissolved in large amount of water?

What are the products obtained by heating ethane in:
(a) Excess of air
(b) Absence of air
(c) Air in presence of copper and 120atm pressure
(d) Air with molybdenum oxide at 100 atm pressure.

What happen when (Given balanced equation):
Nitric acid is added to washing soda and the resulting gas is passed through a freshly prepared lime water?

What happen when (Given balanced equation):
Limestone reacts with nitric acid?

Complete and balance the following equation :
C + HNO₃ → ___________

Complete and balance the following equation :
SO₂ + HNO₃  → ______________

Complete and balance the following equation :
Fe + HNO₃(conc.) → _____________

How is ethylene prepared in laboratory? Give balanced equation and
procedure. How is the gas prepared and dried?

Complete and balance the following equation :
FeSO₄ + NO + H₂O → ______________

Complete and balance the following equation :
Pt + HNO₃ + HCl → ___________

Complete and balance the following equation :
HNO₃ + FeSO₄ + H₂SO₄ → ______________

How would you convert:
(a) Ethene into 1, 2 - dibromoethane.
(b) Ethene to bromoethane

Write the physical properties of ethene.