All In One ICSE Chemistry>Chapter 4 - Atomic Structure and Chemical Bonding>CHALLENGERS*>Q 1

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Consider the following information.

Ramana wants to neutralise it but the available particles with her are neutron, electron, proton and helium nuclei. Which will be the best item to fulfill the Ramana's need?

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Important Questions on Atomic Structure and Chemical Bonding

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All In One ICSE Chemistry>Chapter 4 - Atomic Structure and Chemical Bonding>CHALLENGERS*>Q 2

Which of the following will not show deflection from the path on passing through an electric field?

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All In One ICSE Chemistry>Chapter 4 - Atomic Structure and Chemical Bonding>CHALLENGERS*>Q 3

Which of the following ion has the maximum shells containing electrons?

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All In One ICSE Chemistry>Chapter 4 - Atomic Structure and Chemical Bonding>CHALLENGERS*>Q 4

Which of the following figures do not represent Bohr's model of an atom correctly?

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All In One ICSE Chemistry>Chapter 4 - Atomic Structure and Chemical Bonding>CHALLENGERS*>Q 5

An element X is converted into its positive ion as

X \to X^{3 +}

. Mass number of the atom is

27

and the number of neutrons is

14

. What is the number of electrons in the ion?

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All In One ICSE Chemistry>Chapter 4 - Atomic Structure and Chemical Bonding>CHALLENGERS*>Q 6

An element $X$ has two isotopes, which may be represented as ${}^{238}X$ and ${}^{235}X$ .

How does ${}^{238}X$ differ from ${}^{235}X$ ?

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All In One ICSE Chemistry>Chapter 4 - Atomic Structure and Chemical Bonding>CHALLENGERS*>Q 7

Among the following, the electrovalent linkage is present in:

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All In One ICSE Chemistry>Chapter 4 - Atomic Structure and Chemical Bonding>CHALLENGERS*>Q 8

The maximum number of covalent bonds by which the two atoms can be bonded to each other is

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All In One ICSE Chemistry>Chapter 4 - Atomic Structure and Chemical Bonding>CHALLENGERS*>Q 9

Elements

A, B and C

have respectively

1, 3

and

5

electrons in valence shell. Ionic compound is not formed from