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Important questions on Group 18 Elements

The characteristic of the last elements in the periods of a periodic table:

A
orbital completely
B
zero electron affinity
C
zero tendency in accepting electrons
D
All of these
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Assertion

The elements of group 18 are called inert gases.

Reason

The elements of group 18 are mono-atomic in nature.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C
Assertion is correct but Reason is incorrect
D
Both Assertion and Reason are incorrect
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If atomic number of inert gas is , then ionic bond is formed between:

A
and
B
and
C
both (a) and (b)
D
none of these
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Assertion

Noble gases are considered unreactive elements.

Reason

Group 18 elements have complete octet except Helium.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C
Assertion is correct but Reason is incorrect
D
Both Assertion and Reason are incorrect
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Assertion

Noble gases are diamagnetic atoms.

Reason

The atomic numbers of noble gases are even and all the orbitals are doubly occupied by the electrons.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C
Assertion is correct but Reason is incorrect
D
Both Assertion and Reason are incorrect
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Which of the following statements is not correct?

A
Argon is used in electric bulbs
B
Krypton is obtained during radioactive disintegration
C
Half life of radon is only 3.8 days
D
Helium is used in producing very low temperatures
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