(English Medium) ICSE Class 9 - CISCE Question Bank Solutions for Chemistry

Which part of atom was discovered by Rutherford?

How was it shown that atom has empty space?

State one major drawback of Rutherford's model.

Which metal did rutherford select for his `alpha` particle scattering experiment and why?

What are nucleons? How many nucleons are present in phosphorus? Draw its structure.

Name the following:

The element which does not contain any neutron in its nucleus.

Choose the correct option

Rutherford's alpha-particle scattering experiment discovered

State the following:

Gas equation

Match the following:

What is a chemical formula? What is the significance of a formula?give an example to illustrate?​

Calculate the following:

Calculate the temperature to which a gas must be heated, so that the volume triples without any change in pressure. The gas is originally at 57”C and having a volume 150 cc.

Calculate the following:

A gas ‘X’ at -33°C is heated to 127°C at constant pressure. Calculate the percentage increase in the volume of the gas.

State an advantage of using solar energy.

XCl₂ is the chloride of a metal X. State the formula of the sulphate and the hydroxide of the metal X.

The formula of the nitride of a metal X is XN, state the formula of :

1. its sulphate
2. its hydroxide.

Explain in brief the experimental proof which led to the discovery of –

Atomic nucleus

What is meant by the term nucleus

Differentiate between the following term:

Nucleus and nucleons

Give an example of an endothermic reaction.

Name the element in the compound and give the formula of the following compound:

Nitric acid