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Define oxidation and reduction. ? Give o...

Define oxidation and reduction. ? Give one example to each.

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'Oxidation' is a reaction that involves the addition of oxygen or removal to hydrogen.
Ex : `Cu+O_(2) overset("Heat")rarr 2CuO`
'Reduction' is a reaction that involve that addition of hydrogen or removal of oxygen.
Ex : `CuO+H_(2) overset("Heat")rarr Cu+H_(2)O`
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VGS PUBLICATION-BRILLIANT-CHEMICAL REACTIONS AND EQUATIONS-ESSENTIAL MATERIAL FOR EXAMINATION PURPOSE
  1. What is an exothermic reaction ? Give an example.

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  2. What is a thermal decomposition reaction ? Give an example.

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  3. Define oxidation and reduction. ? Give one example to each.

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  4. What double displacement reaction? Give four examples .

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  5. What is oxidation - reduction reaction or redox reaction ? Give one ex...

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  6. a) What is combustion reaction ?

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  7. a) Write the process of the effect of bleaching on coloured objects.

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  8. How chlorine changes the colours of objects? Write the chemical equati...

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  9. In a chemical formula, no subscript was written. What does indicate th...

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  10. Is Photosynthesis reaction is a chemical decomposition reaction ? Expl...

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  11. Balance the following equations. 1) Na+O(2)rarr Na(2)O

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  12. Balance the following equations. 2) H(2)O(2)rarr H(2)O+O(2)

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  13. Balance the following equations. 3) Mg(OH)(2)+HCl rarr MgCl(2)+H(2)O

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  14. Balance the following equations. 4) Fe+O(2)rarr Fe(2)O(3)

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  15. Balance the follwowing equations. 1) Al(OH)(3)rarr Al(2)O(3)+H(2)O

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  16. Balance the follwowing equations. 2) NH(3)+CuO rarr Cu+N(2)+H(2)O

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  17. Balance the follwowing equations. 3) Al(2)(SO(4))(3)+NaOH rarr Al(OH...

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  18. Balance the follwowing equations. 4) HNO(3)+Ca(OH)(2)rarr Ca(NO(3))(...

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  19. Balance the follwowing equations. 5) NaOH +H(2)SO(4) rarr Na(2)SO(4)...

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  20. Balance the follwowing equations. 6) BaCl(2)+H(2)SO(4)rarr BaSO(4)+H...

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