(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Chemistry

Draw the structure for carbon tetrachloride and explain the type of bonding present.

Select the right answer.

Ammonium ion

Select the right answer.

Carbon tetrachloride

Choose the most appropriate answer from

(SO₂, SiO₂, Al₂O₃, CO, MgO, Na₂O)

A basic oxide.

The following question refers to one mole of chlorine gas.

If the relative atomic mass of chlorine is 35.5, what will be the mass of 1 mole of chlorine gas?

67.2 litres of hydrogen combines with 44.8 litres of nitrogen to form ammonia under specific conditions as:

\[\ce{N2_{(g)} + 3H2_{(g)} -> 2NH3_{(g)}}\]

Calculate the volume of ammonia produced. What is the other substance, if any, that remains in the resultant mixture?

The energy required to remove an electron from a neutral isolated gaseous atom and convert it into a positively charged gaseous ion is called ____________. (electron affinity, ionization potential,
electronegativity)

Arrange the following as per the instruction given in the brackets:

Na, Li, K (Increasing Ionisation Energy)

Rewrite the following sentences by using the correct symbol > (greater than) or < (less than) in the blanks given

The ionization potential of potassium is _________________ that of sodium.

Choose the correct answer from the options given below:

Ionisation potential increases over a period from left to right because of the

(A) Atomic radius increases and nuclear charge increases

(B) Atomic radius decreases and nuclear charge decreases

(C) Atomic radius increases and nuclear charge decreases

(D) Atomic radius decreases and nuclear charge increases

Give one word or phrase for the following:

Formation of ions from molecules

Give one word or a phrase:

A process of formation of ions from molecules which are not in the ionic state.

Give a reason for the following:

Ionisation potential increases across a period, from left to right.

Define the term ‘ionisation potential`.

Represent ionisation potential in the form of an equation. In which unit it is measured?

What do you understand by successive ionization energies? 

State the trends in ionization energy across the period.

State the trends in ionization energy down the group.

Name the elements with highest and lowest ionization energies in the first three periods.

Arrange the elements of second and third period in increasing order of ionization energy.