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Introduction to Ecosystem Function

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We know that in the decomposition of potassium chlorate chlorine gets reduced and oxygen gets oxidized but what is the reducing and oxidizing agents in this process?

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Q. Write the catalyst used in the decomposition of potassium chlorate to get potassium chloride and oxygen.

Q. Why oxidizing agents get reduced?

Q. A black metal oxide XO₂ is used as a catalyst in the preparation of oxygen gas from potassium chlorate. The oxide XO₂ is also used in ordinary dry cells. The metal oxide XO₂ cannot be reduced satisfactorily with carbon to form metal X.
(a) Name the metal X.
(b) Name the metal oxide XO₂.
(c) Which reducing agent can be used to reduce XO₂ to obtain metal X?
(d) Name another metal which can also be extracted by the reduction of its oxide with the above reducing agent.

Q. Assertion :Decomposition of potassium chlorate is an example of redox reaction. Reason: There is no change in the oxidation number of potassium in decomposition of potassium chlorate.

2 H_{2} S + S O_{2} \to 3 S + 2 H_{2} O

In the above reaction:
(a)

H_{2} S

gets oxidized.
(b)

S O_{2}

gets reduced.
(c)

H_{2} S

gets reduced.
(d)

S O_{2}

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