- Colour of various salts mentioned in the chapter- Chemical reactions and equations and their colour change when heated or under some chemical reactions.
|Name of the salt||Molecular formula||Colour of the compound|
|Copper(II) Nitrate||Cu(NO3)2||Bluish green|
|Ferrous sulphate||FeSO4||Light green|
|Ferric oxide||Fe2O3||Reddish brown|
|Calcium carbonate||CaCO3||White precipitate in solution|
|Calcium hydrogen carbonate||Ca(HCO3)2||Colourless in solution|
|Copper sulphate pentahydrate||CuSO4. 5H2O||Blue|
- Thecolour change of various indicators in both acidic and basic solutions mentioned in the text book
|Indicator||Type of indicator||colour in acidic solution||colour in basic solution|
|Red cabbage leaf extract||Red||Green|
|Turmeric||No change||Brownish red|
- The name and formulae of the most common strong as well weak acids and bases, in order to identify the type of salts formed.
- For eg. Sodium hydroxide is a strong base and Hydrochloric acid is a strong acid, so the salt formed by combination of them will be a neutral salt.
- The general chemical reaction of both acids and bases on reacting with metals, metal hydrogen carbonates and metal carbonates.
- For eg. Acid + Metal carbonate à Salt + CO2 + H2O
- The name and formula of the most common cations and anions along with their valency, which will help to write the molecular formula of a compound.
- The pH value of the substance given in the NCERT textbook.
- The exceptional behaviour exhibited by the elements among metal and non-metals
- For eg. Non-metal are brittle in nature, but diamond which is made up of carbon, a non-metal; one of the strongest substance exists.
- The order of the reactivity series.
- In IUPAC nomenclature of compounds, the root word of 1 – 10 carbon atoms and the appropriate suffix for the functional groups given in the text book.
- The general formulae for alkanes, alkenes and alkynes.
- First 30 elements name, symbol and atomic numbers and atomic masses.