ICSE ICSE Class 7 - CISCE Question Bank Solutions for Chemistry

Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to mass

In certain reaction an insoluble solid called precipitate is formed. State the colour and name of the precipitate formed in the following reaction involving addition of:

Copper [II] sulphate to sodium hydroxide.

Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to space.

In certain reaction an insoluble solid called precipitate is formed. State the colour and name of the precipitate formed in the following reaction involving addition of:

Lead nitrate to ammonium hydroxide.?

Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to volume.

Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to shape.

Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to compressibility.

Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to density.

Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.

Heat energy

Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to free surfaces.

Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to free diffusion.

State in which of the three states of matter:

Are the atoms or particles far apart

Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.

Light energy

State in which of the three states of matter:

The space between the particles is minimum.

Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.

Electrical energy

State in which of the three states of matter:

The force of attraction between the particles is very weak.

State in which of the three states of matter:

The movement of the particles is neither about their own positions nor in any random direction.

Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.

Pressure

Give a reason why –

Solids have a definite volume & a definite shape.

Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.

Catalyst