See image — AITS & Test Series Chemistry Question
Question
See image
Answer: B
💡 Solution & Explanation
238 206 92 82 U Pb Number of - particle emitted = 238 206 8 4 238 8 206 6 206 92 76 82 U X Pb Moles of 92U238 decayed in 2t1/2 = 3
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