Chemical Changes and Reactions Exe-2C Very Short Answer Chemistry Class-9 ICSE Selina Publishers Solutions Chapter-2. Step By Step ICSE Selina Concise Solutions of Chapter-2 Chemical Changes and Reactions with All Exercise including MCQs, Very Short Answer Type, Short Answer Type, Long Answer Type, Numerical and Structured/Application Questions Solved . Visit official Website CISCE for detail information about ICSE Board Class-9.
Chemical Changes & Reactions Exe – 2C Very Short Chemistry Class-9 ICSE Concise Selina Publishers
|Chemical Changes and Reactions
|Solution of Exercise – (2C) Very Short Answer Type
Chemical Changes and Reactions:
- A chemical reaction is the process of breaking the chemical bonds of the reacting substances (reactants) and making new bonds to form new substances (products).
- A chemical bond is the force which holds the atoms of a molecule together, as in a compound.
B. Exercise – (2C) Very Short Answer Type
Chemical Changes and Reactions Class-9 Chemistry Concise Solutions
(a) a carbonate which do not decompose on heating.
(b) a nitrate which produces oxygen as the only gas.
(c) a compound which produces carbon dioxide on heating
(d) a nitrate which produces brown gas on heating.
(a) Sodium carbonate
(b) Sodium nitrate
(c) Zinc carbonate
(d) Lead nitrate
Which is the most reactive element in this question :CuSO4 + Fe ⟶ FeSO4 + Cu
Fe, as Fe is higher in the metal reactivity series. The reactivity of the metal reactivity series decreases as one moves from top to bottom.
— : End of Chemical Changes & Reactions Exe-2C Very Short Class-9 ICSE Chemistry Solutions :–
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