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Question

Which of the following are isobars?

4018Ar, 146C, 4020Ca, 147N


A

[I, II] and [III, IV]

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B

[I, III] and [II, IV]

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C

[I, IV] and [II, III]

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D

None of these

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Solution

The correct option is B

[I, III] and [II, IV]


Isobars are atoms of different elements which have the same mass number.

An element can be represented as

AtomicNumberMassNumberX


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