In class 9, While preparing for chemistry, never ignore numerical
problems. Most of the times, the questions asked are based on
numerical. Remember; if you are a master in numerical problems,
be sure of getting good marks in the examination. Chemistry is
the one you should write and practice. Balance the equations on
your own. Chemistry becomes fairly simple if you have mastered
So, it is extremely important for a student to have a thorough
understanding of the concepts and thereby have a strong
foundation in the subject. Here, the detailed ICSE syllabus for
class 9 chemistry is provided for the students to acquaint them
with the topics that CISCE has included in the syllabus.
1. The Language of Chemistry
Symbol of an element; valency; formulae of
radicals and formulae of compounds. Balancing of
simple chemical equations.
Relative Atomic Masses (atomic weights) and
Relative Molecular Masses (molecular weights):
either - standard H atom or 1/12th of carbon 12
Hydrated and anhydrous substances.
2. Chemical changes and reactions
Types of chemical changes: Direct combination,
Decomposition, Displacement;, Double
decomposition (The above to be taught with
suitable chemical equations as examples).
Energy changes in a chemical change. Exothermic
and endothermic reactions with examples –
evolution/absorption of heat, light and
Water as a universal solvent. Solutions as
'mixtures' of solids in water; saturated
Hydrated and anhydrous substances.
Removal of hardness
Drying and Dehydrating Agents
Soft water and Hard water
4. Atomic Structure and Chemical bonding
Structure of an Atom, mass number and atomic
number, Isotopes and Octet Rule.
Electrovalent and covalent bonding, structures
of various compounds – orbit structure
5. The Periodic Table
Dobereiner’s Triads, Newland’s law of Octaves,
Mendeleev’s contributions; Modern Periodic Law, the
Modern Periodic Table. (Groups and periods) General
idea of Dobereiner’s triads, Newland’s law of
Octaves, Mendeleev’s periodic law. Discovery of
Atomic Number and its use as a basis for Modern
Periodic law. Modern Periodic Table (Groups 1 to 18
and periods 1 to 7). Special reference to Alkali
metals (Group 1), Alkaline Earth metals (Group 2)
Halogens (Group 17) and Zero Group (Group 18).
6. Study of the First Element -Hydrogen
Hydrogen from: water, dilute acids and alkalis.
The preparation and collection of hydrogen by a
standard laboratory method other than
Industrial manufacture of hydrogen
Oxidation and reduction reactions : Differences
in terms of addition and removal of oxygen /
7. Study of Gas Laws
The behaviour of gases under changes of
temperature and pressure; explanation in terms
of molecular motion (particles, atoms,
molecules); Boyle’s Law and Charles’ Law;
absolute zero; gas equation; simple relevant
Relationship between Kelvin scale and Celsius
Scale of temperature; Standard temperature and
pressure. Conversion of temperature from Celsius
Scale to Kelvin scale and vice versa. Standard
temperature and pressure. (Simple calculations).
8. Atmospheric pollution
Internal Assessment of Practical Work
Candidates will be asked to observe the effect of reagents and/or of
heat on substances supplied to them. The exercises will be simple
and may include the recognition and identification of certain gases
Candidates are expected to have completed the following minimum
practical work. Simple experiments on:
Action of heat on the following compounds:
copper carbonate, zinc carbonate
washing soda, copper sulphate crystals
zinc nitrate, copper nitrate, lead nitrate
ammonium chloride, iodine, ammonium dichromate. Make
observations, identify the products and make deductions
Action of dilute sulphuric acid on the following substances.
(warm if necessary)
a sulphite. Make observations, identify the gas evolved and make deductions
Apply the flame test to identify the metal in the unknown
a sodium salt
a potassium salt
a calcium compound
Simple experiments based on hard water and soft water –
identification of hardness – simple softening – by
heating the temporary hard water, using washing soda and
advantage of using detergents over soap in hard water.
Find out the sources of pollution of water bodies in the
locality. Suggest preventive steps to control it.
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