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

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11. Choose the best: NCERT- book back one mark questions - I

6 m.

Choose the best answer:

1. \(Fe_2O_3\) + \(2Al\) → \(Al_2O_3\) + \(2Fe\)
The above reaction is an example of a

2. Translate the following statements into chemical equations and then balance them.

Hydrogen sulphide gas burns in air to give water and sulpur dioxide.

\(H_2S\) + \(6O_2\) → \(2H_2O\) + \(2SO_2\)
\(2H_2S\) + \(3O_2\) → \(2H_2O\) + \(2SO_2\)
\(2H_2S\) + \(3O_2\) → \(2H_2O\) + \(2SO_3\)
\(2H_2S\) + \(3H_2\) → \(2H_2O\) + \(2SO_2\)
\(2H_2S\) + \(3O_2\) → \(2H_2O_2\) + \(2SO_2\)

Did you find an error?