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Compound used in safety matches is :...

Compound used in safety matches is :

A

`P_(4)S_(3)`

B

`P_(4)`

C

`P_(2)O_(5)`

D

`PCl_(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
Match stick contain `P_(4)S_(3)` and `KCIO_(3)` fillers and glue.The friction between the matchstick and the sand paper initiates a violent reaction between `P_(4)S_(3)` and `KCIO_(3)`. The generates enough heat to make the matchstick burst into flame.
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  2. Red and white phosphorus will differ but not in:

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  3. Compound used in safety matches is :

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  4. The high reactivity and low volatility of white phosphorous is due to:

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  5. Which of the following oxides is amphoteric in nature?

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  6. Which of the following is least reactive?

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  7. ….is obtained when ammonium dichromate is heated.

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  8. In the ostwald's process, nitric acid is prepared by the catalytic oxi...

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  9. NH(4)Cl(s) is heated in test tube.Vapours are brought in contract with...

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  10. Which of the following combines with Fe^(2+) ions to form brown comple...

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  11. NO(2) can be prepared by heating :

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  12. The wrong statement about N(2)O is :

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  13. Following are neutral oxides except :

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  14. HNO(3)+P(4)O(10) to HPO(3) + X in the above reaction the product X i...

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  15. Cold solution of barium nitrite on mixing with sulphuric acid produces...

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  16. Nitric acid usually turns yellow on standing.This is due to

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  17. Concentrated nitric acid oxidises phosphours (P) into:

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  18. Which of the following metals does not dissolve in concentrated HNO(3)...

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  19. The compound which has molecular nature is gas phase but ionic in soli...

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  20. When P(4)O(10) is dissolved in water, the acid formed finally is :

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