BITSAT 2017 Slot 2 Solved Paper

Section: Chemistry

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Question : 77 of 150

Marks: +1, -0

Consider the following radioactive decays
I. ‌92U

−α

────▸

‌90 Th and
II. ‌90Th

−α

────▸

‌88Ra
In which case group of parent and daughter elements remains unchange

In (I)
In (II)
Both in (I) and (II)
None of the above

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