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The number of hydroxyl group in pyropho...

The number of hydroxyl group in pyrophosphoric acid is

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The correct Answer is:
B
`H_(4)P_(2)O_(7)`
`underset("4-OH groups are present")underset("tetrabasic")(HO-underset(OH)underset(|)overset(O)overset(|)(P)-O-underset(OH)underset(|)overset(O)overset(|)(P)-OH)`
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NIKITA PUBLICATION-P-BLOCK ELEMENT -Competitive Exam
  1. One of the acid listed below is formed P(2)O-(3) and the rest are form...

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  2. Hypophosphorus acid is

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  3. The number of hydroxyl group in pyrophosphoric acid is

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  4. Correct order of decreasing thermal stability is

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  5. calcium cyanamide on treatment with steam under pressure gives ammonia...

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  6. Which of the following has the highest proton affinity ?

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  7. Atoms in P4 molecule of white phosphorus are arranged regularly in the...

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  8. In case of nitrogen, NCl(3) is possible but not NCI5 gwhile in case of...

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  9. Liquid ammonia is used to refrigeration because of its

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  10. The decreasing values of bond angles from NH3 (106^@) to SbH3 ( 101^@...

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  11. The structural formula of hypophosphorous acid is

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  12. Aquaregia is

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  13. Which of the following set of properties belong to PCI(5)?

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  14. In NH(3) and PH3, the common is

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  15. CaC(2)+N(2) to A, "Product A is "

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  16. In compounds of type ECI(3), where E=BP, As or B, the angles CI-E-CI f...

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  17. An element (X) forms compounds of the formuls XCl(3),X(2)O(5) and Ca(3...

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  18. Which of the following statement is not valid for oxoaids of phosphoru...

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  19. Which of the following oxyacids of phosphorus is a reducing agent and ...

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  20. The element which forms oxides in all oxidation states +1 to +5 is.

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