Q. One of the ingredients of the paste on the side of a match box is
A) Phosphorus trichloride
B) Phosphorus pentaoxide
C) Phosphorus trioxide
D) Phosphorus trisulphide
โ Correct Answer: Phosphorus trisulphide
Exam Insight
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A) Phosphorus trichloride
B) Phosphorus pentaoxide
C) Phosphorus trioxide
D) Phosphorus trisulphide
โ Correct Answer: Phosphorus trisulphide
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