(English Medium) ICSE Class 9 - CISCE Question Bank Solutions for Chemistry

Balance the following simple equation:

Zn  +   HCl  →   ZnCl₂   +   H₂ 

Balance the following simple equation:

Al  +   H₂SO₄  →   Al₂(SO₄)₃   +   H₂ 

Balance the following simple equation:

H₂  +   O₂  →   H₂O

Balance the following simple equation:

\[\ce{N2 + H2 <=> NH3}\]

Balance the following simple equation:

Fe₂O₃  +  H₂  → Fe  +  H₂O

Balance the following simple equation:

KBr  +  Cl₂  → KCl  +  Br₂

Balance the following simple equation:

NaOH  +  Cl₂  →  NaCl  +   NaClO  +  H₂O 

Balance the following simple equation:

NaHCO₃  +  H₂SO₄  →  Na₂SO₄  +  H₂O  +  CO₂ 

Balance the following simple equation:

Mg  +  CO₂  →  MgO  +  C

Balance the following simple equation:

Fe₂O₃  +  CO  →  Fe  +  CO₂ 

Balance the following simple equation:

CaO  +  HCl  →  CaCl₂  +  H₂O 

CaCO3 + 2HCl[dil.] → CaCl₂ + H₂O + CO₂ [g]

State the information provided by the above chemical equation.

CaCO₃ + 2HCl[dil.] → CaCl₂ + H₂O + CO₂ [g]

State the information not conveyed by the above chemical equation. 

Write a balanced equation for the following word equation:

Potassium nitrate → Potassium nitrite + Oxygen

Write a balanced equation for the following word equation:

Iron + Hydrochloric acid → Iron [II] chloride + Hydrogen

Write a balanced equation for the following word equation:

Nitrogen dioxide + Water + Oxygen → Nitric acid

Write a balanced equation for the following word equation:

Lead dioxide [lead (IV) oxide] → Lead monoxide + Oxygen 

Write a balanced equation for the following word equation:

Aluminium + Oxygen → Aluminium oxide 

Write a balanced equation for the following word equation:

Potassium bromide + Chlorine → Potassium chloride + Bromine

Write a balanced equation for the following word equation:

Potassium bicarbonate → Potassium carbonate + Water + Carbon dioxide