ICSE ICSE Class 7 - CISCE Question Bank Solutions

A measuring cylinder is filled with water to a particular mark. A piece of solid is immersed inside the measuring cylinder. State why the level of water in the measuring cylinder will rise up. If the solid is removed, what will be the new level of the water in the measuring cylinder? Give a reason for your answer.

A glass beaker is half-filled with water and an empty glass tumbler is inverted & lowered inside the glass beaker. State your observations on tilting the tumbler below the level of the water in the glass beaker. Give a reason for your answer.

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:

Dilute hydrochloric acid to silver nitrate.

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:

Iron [II] sulphate to sodium hydroxide.

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:

Iron [III] chloride to ammonium hydroxide.

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