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Working of a Matchstick

What is the f...

Question

What is the function of potassium chlorate in a matchstick bulb?

A

It gives oxygen for combustion.

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B

It increases heat.

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C

It increase volume.

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D

It provides pressure.

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Solution

The correct option is A
It gives oxygen for combustion.

Potassium chlorate is an oxidising agent and provides necessary oxygen for combustion of phosphorus.

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What is the function of potassium chlorate in a matchstick bulb?

Which of the following is not used in making matchsticks these days ?

(a) potassium chlorate

(b) white phosphorus

(c) antimony trisulphide

(d) red phosphorus

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.

Q. The percentage loss in weight after heating a pure sample of potassium chlorate will be:

[Molar mass of potassium chlorate

= 122.5

What is the catalyst used for the decomposition of potassium chlorate into potassium chloride and oxygen at a lower temperature?

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