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919. 72 mg of radioactive compound with half life 5 years allowed to decay for 25 years, then amount of substance remaining after 25 years is
O (A) 1.125
(B) 4.5
O (C) 2.52
(D) 225​

Answer 1

Answer:

O (C) 2.52

Explanation:

Test

BTECH_SETS

Current Section

Chemistry

Inurnala

Remaining Time:

01:18:15

10)

Mathematic... (30)

Resot

English (5)

919. 72 mg of radioactive compound with half life 5 years allowed to decay for 25 years, then amount of substance remaining after 25 years is

O (A) 1.125

(B) 4.5

O (C) 2.52

(D) 225