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When orthophosphoric acid is heated at 2...

When orthophosphoric acid is heated at `240^@ C`, the main product formed is.

A

`H_3 PO_3`

B

`H_3 PO_2`

C

`HPO_3`

D

`H_4 P_2 O_7`

Text Solution

Verified by Experts

The correct Answer is:
D
`2 H_3 PO_4 overset (240^@ C)rarr H_4 P_2 O_7 + H_2 O`.
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CENGAGE CHEMISTRY-P-BLOCK GROUP 15 ELEMENTS - THE NITROGEN FAMILY-Exercises (Single Correct)
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  2. When phosphine is bubbled through a solution of nitrate is precipitat...

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  9. White phosphorus may be removed from red phosphorus by

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  10. Which one of the acids is a dibasic acid ?

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  11. Which one of the following can be used as an anaesthetic?

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  12. The catalyst used in the manufacture of ammonia by Haber process is

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  13. The catalyst used in the manufacture of NO by Ostwald's process is

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  18. The reaction between NH2^(Ө) and N2 O gives

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  19. Red phosphorus is less reactive than yellow phosphorus because

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