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

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.

Name the periodic property which relates to the amount of energy required to remove an electron from an isolated gaseous atom.

Arrange the elements of group 17 and group 1 according to the given conditions.

Increasing ionization potential

Taking MgCI₂ as an electrovalent compound, CCI₄ as a covalent compound, give four differences between electrovalent and covalent compounds.

Give reason for the following:

Ionisation potential of the element increases across a period.

Which element has:

two shells, both of which are completely filled with electrons?

Which element from the following has the highest ionization energy?
Explain your choice.

P, Na, CI

Which element from the following has the highest ionization energy?
Explain your choice.

F, O, Ne

Which element from the following has the highest ionization energy?
Explain your choice.

Ne, He, Ar

Choose the correct answer.

An element with highest ionization potential
(i) Calesium
(ii) Fluorine
(iii) Helium
(iv) Neon

The skin has and needs natural oils. Why is it advisable to wear gloves while working with strong allkalis?

What is the difference between:

Modern explanation and Arrhenius explanation for the theory of electrolysis.