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Which one of the following contains P-O-...

Which one of the following contains P-O-P bond ?

A

Hypophosphorus acid

B

Phosphorus acid

C

Pyrophosphoric acid

D

Orthophosphoric acid

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2010-CHEMISTRY
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  2. In a periodic table the basic character of oxides

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  3. Which one of the following contains P-O-P bond ?

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  4. Which of the following orders regarding ionization energy is correct ?

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  5. Which of the following statements regarding ozone is not correct ?

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  6. P(4)O(10) is the anhydride of

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  7. Which of the following metals has the largest abundance in the earth's...

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  8. Which of the following orbitals will have zero probability of finding ...

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  9. What type of orbital hybridisation is considered on P in PCl(5) ?

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  10. For which element the inertness of the electron pair will not be obser...

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  11. In which of the following molecules is hydrogen bridge bond present ?

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  12. When a manganous salt is fused with a mixture of KNO(3) and solid NaOH...

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  13. In hemoglobin the metal ion present is

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  14. Ortho-and para - hydrogens have

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  15. The bond order of CO molecule is

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  16. Vitamin C is

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  17. On mixing an alkane with chlorine and irradiating with ultra -violet l...

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  18. Keto-enol tautomerism is not observed in

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  19. What is obtained when nitrobenzene is treated sequentially with (i) NH...

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  20. Boiling water reacts with C(6)H(5)N(2)^(+)Cl^(-) to give

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