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Q.

The chemicals present in the head of the match stick

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a

White phosphorus

b

Potassium chloride

c

Antimony trisulphide

d

Both A & B

answer is D.

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Detailed Solution

Match stick head is made up of antimony trisulphide and potassium chloride and when it is rubbed on rough surface of match box which contains red phosphorous and lighten the match stick head and produce flame.

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