Chemical Changes and Reactions Exe-2C Very Short Chemistry Class-9 ICSE Selina Publishers

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

Board ICSE
Publications Selina Publication
Subject Chemistry
Class 9th
Chapter-2 Chemical Changes and Reactions
Book Name Concise
Topics Solution of Exercise – (2C) Very Short Answer Type
Academic Session 2023-2024

Chemical Changes and Reactions:

  1. 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).
  2. 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  

Page 33

Question 1.

Name.

(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.

Answer:

(a) Sodium carbonate

(b) Sodium nitrate

(c) Zinc carbonate

(d) Lead nitrate

Question 2.

Which is the most reactive element in this question :CuSO4 + Fe ⟶ FeSO4 + Cu

Answer:

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 :–

Return to  Return to Concise Selina ICSE Chemistry Class-9 

Thanks

Please share with your friends

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.