Chemistry
Discuss some decomposition reactions occurring inside our body.
Chemical Reaction
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Answer
Digestion of food in our body is an example of decomposition reaction.
The starch present in the food we eat decomposes into glucose and sugar. Proteins undergo decomposition to form amino acids. Fats and oils are decomposed to fatty acids and finally oxidized by respiration into carbon dioxide and water.
Starch Glucose CO2 + H2O + Energy
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K, Na, Ca, Mg, Al, Zn, Fe, Pb, Cu, H, Hg, Ag
Pick an element from the reactivity series given above and write the equations for the the following:
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(b) Metal hydroxide on heating forms metal, oxygen and water vapours.
(c) Metal nitrate decomposes to give two products only.
(d) Metal nitrate on heating forms metal oxide, nitrogen dioxide and oxygen.
(e) Metal nitrate on heating forms metal, nitrogen dioxide and oxygen.
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KI + Cl2 ⟶ KCl + I2
(a) Balance the equation given above.
(b) Which type of reaction is it ?
(c) Which element is more reactive ?
(d) What will be the product formed if KCl reacts with I2 ?