ICSE Class 10 Chemistry by Pavan | Practice Test to Test Your Knowledge
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ICSE Class 10 Chemistry

ICSE Class 10 Chemistry

Complete mock test including Acids and Bases, Metals and Non-metals, and Organic Chemistry. Contains theory questions and chemical equations.

2025-07-19
Pavan Pavan
ICSE Class 10 Chemistry Grade 10

Duration

30 min

Questions

30

Marking

Negative

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Questions Preview

Which of the following is a periodic property that increases across a period?

A
Atomic radius
B
Ionization energy
C
Electron affinity
D
Metallic character

What happens to the atomic size as you move down a group in the periodic table?

A
It decreases
B
It remains the same
C
It increases
D
It fluctuates

What is the trend of ionization energy across a period?

A
It decreases
B
It increases
C
It remains constant
D
It fluctuates

Which of the following properties generally increases down a group in the periodic table?

A
Electronegativity
B
Electron affinity
C
Atomic radius
D
Ionization energy

Which element has the highest ionization energy in Period 2?

A
Lithium
B
Carbon
C
Nitrogen
D
Neon

Which of the following properties decreases as you move from left to right across a period?

A
Electronegativity
B
Atomic radius
C
Electron affinity
D
Metallic character

Which of the following properties shows a decrease as we go down a group?

A
Electronegativity
B
Ionization energy
C
Atomic radius
D
Electron affinity

What is the trend of electron affinity across a period?

A
It decreases
B
It increases
C
It remains constant
D
It fluctuates

Which of the following elements has the smallest atomic radius?

A
Na
B
Cl
C
Mg
D
Ne

Which of the following is true about periodicity?

A
It is based on atomic mass
B
It repeats after every period
C
It repeats after every group
D
It is based on atomic number

Which of the following elements has the highest electronegativity?

A
Fluorine
B
Oxygen
C
Nitrogen
D
Chlorine

Which of the following is true for elements with atomic number greater than 100?

A
They are highly reactive
B
They are stable
C
They follow the same periodic trends
D
They exhibit irregular periodic trends

What is the reason for periodicity in the periodic table?

A
It is due to the similar electron configuration in the outermost shell
B
It is due to the number of protons
C
It is due to the number of neutrons
D
It is due to the number of isotopes

Which element has the highest atomic number in Period 2?

A
Boron
B
Carbon
C
Oxygen
D
Neon

What does the electron configuration of an element in a period depend on?

A
The number of protons
B
The number of neutrons
C
The number of electrons in the outermost shell
D
The atomic number

What is the atomic number of the element with the highest electronegativity?

A
9
B
8
C
7
D
6

Which of the following is true about atomic size?

A
It increases from left to right across a period
B
It decreases from left to right across a period
C
It decreases from top to bottom in a group
D
It remains constant across a period

What is the period of element 19 in the periodic table?

A
Period 1
B
Period 2
C
Period 3
D
Period 4

What is the general trend in the reactivity of alkali metals down the group?

A
Reactivity decreases
B
Reactivity increases
C
Reactivity remains constant
D
Reactivity fluctuates

Which of the following is true for noble gases?

A
They have low ionization energies
B
They are highly reactive
C
They have full outer electron shells
D
They have incomplete electron shells

What is the periodic trend of the density of elements across a period?

A
It decreases
B
It increases
C
It remains constant
D
It fluctuates

Which of the following elements is a non-metal in Period 3?

A
Sodium
B
Phosphorus
C
Silicon
D
Chlorine

Which element is the first element in Period 4 of the periodic table?

A
Potassium
B
Calcium
C
Scandium
D
Gallium

Which property of an element is directly related to the number of protons in its nucleus?

A
Electronegativity
B
Atomic number
C
Ionization energy
D
Atomic mass

Which of the following elements is found in Period 2 of the periodic table?

A
Sodium
B
Lithium
C
Calcium
D
Potassium

Which of the following is true about electronegativity in the periodic table?

A
It increases down a group
B
It decreases across a period
C
It increases across a period
D
It remains constant across a period

Which of the following groups contains elements with the highest reactivity?

A
Noble gases
B
Alkali metals
C
Transition metals
D
Halogens

Which element has the highest ionization energy in Group 1?

A
Sodium
B
Lithium
C
Potassium
D
Rubidium

Which of the following is true about atomic size?

A
It increases across a period
B
It decreases down a group
C
It increases from top to bottom in a group
D
It remains constant across a period

Which of the following properties does not follow periodic trends?

A
Atomic radius
B
Electronegativity
C
Ionization energy
D
Melting point