1.

(A): Radium is a natural source of two noble gases (R): Radium undergoes alpha-emission spontaneously

Answer»

Both (A) and (R) are TRUE and (R) is the correct explanation of (A)
Both (A) and (R) are true and (R) is not the correct explanation of (A)
(A) is true but (R) is false
Both (A) and (R) are false

Answer :A


Discussion

No Comment Found

Related InterviewSolutions