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Q.

Statement-1: Promethium is a man-made element.
Statement-2: It is radioactive and has been prepared by artificial means.

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a

(b) Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1. 

b

(a) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.

c

(c) Statement--1 is True. Statement 2 is False.  

d

(d) Statement-1 is False, Statement-2 is True. (e) Statement-I and Statement-2 both are False

answer is A.

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Detailed Solution

Promethium is a man-made element because it has been prepared by artificial means.

Hence, Option "A" is the correct answer.

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Statement-1: Promethium is a man-made element.Statement-2: It is radioactive and has been prepared by artificial means.