CLASS 10TH (SCIENCE)
TOP 25
QUESTIONS
,CHEMICAL REACTI
EQUATION
, Important T
Balancing chemical equations (always there, 1–2 m
Types of reactions – specially Displacement & Dou
Displacement (precipitate, colour change example
Activities, Especially Reactions Involving Color Cha
Precipitate Formation (Rapid Revision Table)
, Question 1
In the given reactions,
(i) Write the balanced chemical equation.
(ii) Identify the type of reaction.
(a) Zinc reacts with dilute sulphuric acid to form zinc sulp
(b) Ferrous sulphate crystals on heating decompose to fo
sulphur trioxide.
(c) Sodium sulphate solution reacts with barium chloride
(white precipitate) and sodium chloride solution.
(d) Copper oxide reacts with hydrogen to form copper an
TOP 25
QUESTIONS
,CHEMICAL REACTI
EQUATION
, Important T
Balancing chemical equations (always there, 1–2 m
Types of reactions – specially Displacement & Dou
Displacement (precipitate, colour change example
Activities, Especially Reactions Involving Color Cha
Precipitate Formation (Rapid Revision Table)
, Question 1
In the given reactions,
(i) Write the balanced chemical equation.
(ii) Identify the type of reaction.
(a) Zinc reacts with dilute sulphuric acid to form zinc sulp
(b) Ferrous sulphate crystals on heating decompose to fo
sulphur trioxide.
(c) Sodium sulphate solution reacts with barium chloride
(white precipitate) and sodium chloride solution.
(d) Copper oxide reacts with hydrogen to form copper an
