Chemistry Activities For Class IX (2018 Edition)

Keeping in mind the broader comprehensive needs of subject knowledge we have put in our best efforts in this book. Science is learned best by doing. We can understand the principles of science by doing experiments. Therefore, the practical work in the laboratory is an essential part of the student’s life.

★ It is strictly in accordance with the latest syllabus (CCE) for the IXth class prescribed by C.B.S.E., New Delhi.

★ Subject matter is presented in a simple and lucid manner.

★ Properly labelled diagrams are provided in the experiment.

★ Sufficient theory is provided at the beginning of each experiment.

★ Tables are given for direct recording of the observations.

★ Precautions are given for each and every experiment.

★ The procedure required for each experiment is written in an orderly manner.

★ Viva Voce questions and Multiple Choice Questions with answers are given in each experiment.

We sincerely hope that the present book will prove to be more useful for the students in their practical class.

Experiment 1. To Prepare :

(A) A True Solution Of Common Salt, Sugar And Alum

(B) A Suspension Of Soil, Chalk Powder And Fine Sand In Water

(C) A Colloidal Of Starch In Water And Egg Albumin In Water And Distinguish Between These On The Basis Of :

(I) Transparency

(II) Filtration Criterion

(III) Stability

Experiment 2. To Prepare (A) A Mixture And (B) A Compound Using Iron Filings And Sulphur Powder And Distinguish Between These On The Basis Of :

(I) Appearance I.E., Homogeneity And Heterogeneity

(II) Behaviour Towards A Magnet

(III) Behaviour Towards Carbon Disulphide As A Solvent

(IV) Effect Of Heat

Experiment 3. To Carry Out The Following Reactions And Classify Them As Physical Or Chemical Changes:

(I) Iron With Copper Sulphate Solution In Water

(II) Burning Of Magnesium In Air

(III) Zinc With Dilute Sulphuric Acid

(Iv) Heating Of Copper Sulphate

(V) Sodium Sulphate With Barium Chloride In The Form Of Their Solutions In Water

Experiment 4. To Separate The Components Of A Mixture Of Sand, Common Salt And Ammonium Chloride (Or Camphor) By Sublimation.

Experiment 5A. To Determine The Melting Point Of Ice.

Experiment 5B. To Determine The Boiling Point Of Water.

Experiment 6. To Verify The Law Of Conservation Of Mass In A Chemical Reaction.