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Question

Match column I with column II and select the correct answer using the codes given below:
Column I Column II
(A) 146C and 136C (p) Different number of neutrons
(B) 4020Ca and 4018Ar (q) Different number of protons and neutrons
(C) K(19) (r) Non-metal
(D) Chlorine (17) (s) Metal

A
A - (p); B - (q); C - (r); D - (s)
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B
A - (q); B - (p); C - (s); D - (r)
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C
A - (p); B - (q); C - (s); D - (r)
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D
A - (p); B - (s); C - (q); D - (r)
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Solution

The correct option is C A - (p); B - (q); C - (s); D - (r)
a) Isotopes have different numbers of neutrons.
b) Isobars differ in the number of protons and neutrons but mass number is same.
c) Potassium is a metal.
d) Chlorine is a non-metal.

Hence, it is A(p);B(q);C(s);D(r)

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