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CBSE Class 10 Science 2017 Delhi Term II Set 2 Paper

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Question : 5 of 9
Marks: +1, -0
Complete the following chemical equations:
(i) CH3COOH+Na2CO3→\mathrm{CH_3COOH} + \mathrm{Na_2CO_3} \rightarrow
(ii) CH4+O2→\mathrm{CH_4} + \mathrm{O_2} \rightarrow
(iii) 2C2H5OH+Na→2\mathrm{C_2H_5OH} + \mathrm{Na} \rightarrow
Solution:  
(i) 2CH3COOH+Na2CO3→2CH3COONa+H2O+CO2↑2\mathrm{CH_3COOH} + \mathrm{Na_2CO_3} \rightarrow 2\mathrm{CH_3COONa} + \mathrm{H_2O} + \mathrm{CO_2} \uparrow
(ii) CH4+2O2→ΔCO2↑+2H2O\mathrm{CH_4} + 2\mathrm{O_2} \xrightarrow{\Delta} \mathrm{CO_2} \uparrow + 2\mathrm{H_2O}
(iii) 2C2H5OH+2Na→2C2H5ONa+H2↑2\mathrm{C_2H_5OH} + 2\mathrm{Na} \rightarrow 2\mathrm{C_2H_5ONa} + \mathrm{H_2} \uparrow
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