Chemistry, asked by jibonsathi5553, 6 months ago

--১৯ পরিস্থিতিতে ২০২০ শিক্ষাবর্ষে পুর্নবিন্যাসকৃত পাঠ্যসূচির ভিত্তিতে এ্যাসাইনমেন্ট। নির্ধারিত কাজ ও মূল্যায়ন নির্দেশ
বিষয়: রসায়ন
শ্রেণি: নবম
নাম
এ্যাসাইনমেন্ট/নির্ধারিত কাজ
নির্ধারিতকাজ-১। অ্যাসাইনমেন্ট-১: হাতে কলমে কাজের মাধ্যমে খাদ্য লবণ ও বালুর মিশ্রণ থেকে
উপাদানসমূহ পৃথক কর এবং নিম্নের প্রশ্নগুলাের উত্তর দাও
Jয়:
১। এ পরীক্ষণে কোন কোন পদ্ধতি ব্যবহার করা হয়েছে?
২। কাজের ধারাবাহিক বর্ণনা কর।
৩। পরীক্ষণের উপর তােমার পর্যবেক্ষণ ও সিদ্ধান্ত ব্যাখ্যা কর।
৪। এ পরীক্ষণে তুমি কী কী সাবধানতা অবলম্বন করেছ?​

Answers

Answered by ponish120
1

Answer:

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