Atomic theory — 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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Choose the correct answer:

1. My chemistry teacher taught me that, if we mix sugar with water, at the end we'll get sugar solution. Here the mass of the ingredients and the final product are same, this is based on which law?

John Dolton's first law
None of these
Law of constant proportions
Law of conservation of mass

2. An atomic theory was proposed by which of the below English chemist?

Antoine Lavoisier
J. J. Thomson
Niels Bohr
John Dalton

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3. Atomic theory

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