Choose the best: Types of chemical reactions — task. Science CBSE, Class 10.

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

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Choose the best answer:

1. To indicate the presence of gaseous reactant or product, we use the symbol

Product(l) or Reactant(aq)
Product(l) or Reactant(l)
None of these
Product(g) or Reactant(g)

2. Ethane (\(C_2H_6\)) on complete combustion gave \(CO_2\) and water. It shows that the results are in accordance with the law of conservation of mass. Then, the coefficient of oxygen is equal to

\(3\)
\(7/2\)
\(2\)
\(5/2\)

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33. Choose the best: Types of chemical reactions

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