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In mdern process, manufacturing of phosp...

In mdern process, manufacturing of phosphorus is occurred by

A

heating a mixlure of phosphorite mineral with sand and coke in electric furnace

B

heating calcium phosphate with coke

C

heating bone-ash with coke

D

heating the phosphate mineral with sand

Text Solution

Verified by Experts

The correct Answer is:
A
`Ca_(3)(PO_(4))_(2)+ 3SiO_(2) to 3CaSiO_(3)+P_(2)O_(5)`
` 2P_(2)O_(5) + 10 C to P_(4) + 10CO`
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BITSAT GUIDE-P BLOCK ELEMENTS : GROUP 15- 18-BITAST Archives
  1. In mdern process, manufacturing of phosphorus is occurred by

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  2. The reaction of P(4) with X leads selectively to P(4)O(6) The X is :

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  3. The acidic strength for the hydrides of group 15 follows the order

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  4. BF(3) and NF(3) both molecules, are covalent, but BF(3) is non - polar...

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  5. Sodium carbonate reacts with SO(2) in aqueous medium to give

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  6. The highest bond strength is shown by

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  7. Which one of the following is pyrophosphoric acid ?

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  8. Which of the following has maximum dipole moment?

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  9. Chlorine acts as a bleaching agent only in the presence of

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  10. Helium-oxygen mixture is used by deep sea divers in the presence of ni...

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  11. Distinguishing reagent between silver and lead salt is

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  12. Identify B in the following H(4)SiO(4) underset(-H(2)O) overset(1000^(...

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  13. The correct order of reducing abilites of hydrides of group 15 element...

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  14. Which one of the following pentafluorides cannot be formed?

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  15. Which of the following is most volatile compound?

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  16. SO(2) does not act as a/an

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  17. Which one of the following noble gases is not found in atmoshphere?

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  18. In P(4)O(10),

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  19. Dinitrogen pentoxide ,a colourless deliquescentsolid is ,prepared by

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  20. Incorrect statements for pyrophosphorus acid (H(4)P(2)O(5)) is

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