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#2923 Bangla Language & Literature General Level 17879

<p>একটি প্রথম ক্রম বিক্রিয়ার অর্ধায়ু ১৫ মিনিট হলে হার ধ্রুবক কত?</p>

  1. A <p>3.20×10-2 min-1&nbsp;</p>
  2. B <p>4.50 ×10-2 min-1</p>
  3. C <p>4.62×10-2 min-1</p>
  4. D <p>5.01×10-2 min-1</p>
Answer: C - <p>4.62×10-2 min-1</p>

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