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Combustion of coal in air is a reactio...

Combustion of coal in air is a _____________ reaction.

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TARGET PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS-True or False
  1. The composition of matter reamains the same in a chemical change.

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  2. Combustion of coal in air is a reaction.

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  3. In a chamical equation, the formula of a compound can be changed.

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  4. While balancing a chemical equation, the formula of compound can be ch...

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  5. On adding zinc dust to copper sulphate solution, a displacement reacti...

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  6. Rate of a chemical reaction is proportional to the concentration of re...

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  7. In our body ,enzymes increase the rate of physiological reactions.

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  8. The ozone layer in the earth's atmosphere protects the life on earth f...

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  9. Hydrogen peroxide undergoes slow decomposition into water and oxygen.

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  10. The chemical formula of potassium chromate is K2Cr2O7

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  11. Nascent ocygen is represented [O].

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  12. When ferric ion is formed from ferrous ion, the positive charge is inc...

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  13. The chemical process in which the positive charge on an atom or an ion...

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  14. The conversion of FeO " to " Fe2O3 is reduction reaction.

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  15. A redox reaction takes place during cellular respiration

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  16. The rust on iron surface is formed by an electrochemical reaction.

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  17. When we use old, left over cooking oil for making food stuff, it is fo...

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  18. The composition of matter reamains the same in a chemical change.

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  19. Combustion of coal in air is a reaction.

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  20. In a chamical equation, the formula of a compound can be changed.

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