See image — AITS & Test Series Chemistry Question
Question
See image

Answer: 5
💡 Solution & Explanation
0 0 7A B t 0 a t t a 7x x Now, 0 a 8x 1/2 1/2 1/2 t t t 8x 4x 2x x Given 1/2 3t 900 hr 1/2 t 300 hr 300 days 24 1/2 300 4
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