Multiple Choice Question Answer II — task. Science CBSE, Class 9.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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1. Which of the following contains more than six oxygen atoms?

\(2H_2O\)
\(4ZnO\)
\(3KNO_3\)
\(Al_2(SO_4)_3\)

2. A compound contains 28% N and 72% of a metal by weight. Three atoms of metal combine with two atoms of N. Find the atomic weight of metal.

26
34
22
24

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