Multiple Choice Question Answer IX — 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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1. Which of the following reactions is not balanced

\(2NaHCO_3\) → \(Na_2CO_3\) + \(H_2O\) + \(CO_2\)
\(2C_4H_1{_0}\) + \(12O_2\) ⟶ \(8CO_2\) + \(10H_2O\)
2AI + \(6H_2O\) → \(2Al(OH)_3\) + \(3H_2\)
\(4NH_3\) + \(5O_2\) → \(4NO\) + \(6H_2O\)

2. The equation \(Cu\) + \(xHNO_3\) → \(Cu(NO_3){_2}\) + \(yNO_2\) + \(2H_2O\), The values of x and y are-

7 and 1
4 and 2
3 and 5
8 and 6

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