List of top Science Questions on Types Of Chemical Reactions asked in CBSE Class X

Write the balanced chemical equation for the following and identify the type of reaction in each case. 
(a) Potassium bromide(aq) + Barium iodide(aq) \(→\) Potassium iodide(aq) + Barium bromide(s) 
(b) Zinc carbonate(s) \(→\) Zinc oxide(s) + Carbon dioxide(g) 
(c) Hydrogen(g) + Chlorine(g) \(→\) Hydrogen chloride(g) 
(d) Magnesium(s) + Hydrochloric acid(aq) \(→\) Magnesium chloride(aq) + Hydrogen(g)

Balance the following chemical equations.
(a) HNO₃ +Ca(OH)₂ \(→\) Ca(NO₃)₂ + H₂O 
(b) NaOH + H₂SO₄ \(→\) Na₂SO₄ + H₂O 
(c) NaCl + AgNO₃ \(→\) AgCl + NaNO₃ 
(d) BaCl + H₂ SO₄ \(→\) BaSO₄ + HCl

Fe₂O₃ + 2Al → Al₂O₃ + 2Fe 
The above reaction is an example of a:

Which of the statements about the reaction below are incorrect?
\(\text{ 2PbO(s) + C(s) → 2Pb(s) + C}O_2\text{(g)}\)
(a) Lead is getting reduced. 
(b) Carbon dioxide is getting oxidized. 
(c) Carbon is getting oxidized. 
(d) Lead oxide is getting reduced.