Frame about 15 questions on your own, from pages 79,80 and 81 of your science book. Do not copy
the questions from the book
You have to frame 15 questions from page 79,80 and 81 in CLASS 10 SCIENCE NCERT book
this is science-chemistry
chapter: periodic classifications of elements
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how many elements known to Newton
for which element law of octaves applicable
what are noble gases
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