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One mole of calcium phosphide on reactio...

One mole of calcium phosphide on reaction with excess of water gives

A

one moles of phosphine

B

two moles of phosphoric acid

C

two moles of phosphine

D

one mole of phosphorus pentoxide

Text Solution

Verified by Experts

The correct Answer is:
C
According to the following reaction, one mole of `Ca_(3)P_(2)` gives 2 mole of `PH_(3)`
`Ca_(3)P_(2)+6H_(2)O to 3Ca(OH)_(2) + 2PH_(3)`
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RESONANCE ENGLISH-P BLOCK ELEMENTS-Exercise 1 part 2 objective que
  1. Metaphosphoric acid exists in polymeric form and may have :

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  2. On heating ammonium dichromate, the gas evolved is :

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  3. One mole of calcium phosphide on reaction with excess of water gives

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  4. Which statement is not correct for nitrogen?

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  5. Nitrogen is obtained by the thermal decomposition of :

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  6. Nitrogen gas is prepared :

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  7. Which of the following compound is a tribasic acid ?

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  8. Which one has the lowest boiling point ?

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  9. The compound which on strong heating gives oxygen is :

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  10. Ozone layer is being depleted. This is due to :

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  11. A considerable part of the harmful ultraviolet radiation of the sun do...

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  12. Estimation of ozone can be made quantitatively by :

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  13. Sulphur on oxidation with hot sulphuric acid gives :

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  14. Which of the following compounds gives a mixture of SO(2) and SO(3) ...

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  15. SO(2) can reduce :

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  16. H(2)S is far more volatile than water because :

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  17. When H(2)S is passed through acidified K(2)Cr(2)O(7) solution, the sol...

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  18. H(2)SO(4) has very high corrosive action on skin because

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  19. Sulphuric acid is considered as the king of chemicals. The prosperity ...

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  20. Out of H(2)S(2)O(3),H(2)S(4)O(6),H(2)SO(5) and H(2)S(2)O(8) peroxy aci...

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