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In H(3)PO(3) molecule...

In `H_(3)PO_(3)` molecule

A

P-atom is surrounded by three `-OH` groups

B

P-atom is tetrahedrally surrounded by two `-OH` groups, one oxygen atom and one hydrogen atom

C

P-atom is surrounded by four `-OH` groups

D

P-atom is surrounded by two -H atoms

Text Solution

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The correct Answer is:
B
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(A) H_(3)PO_(3) is tribasic acid (R ) Three H atoms are directly attached to P atom in a H_(3)PO_(3) molecule.

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(A): H_(3)PO_(3) and H_(3)PO_(4) are tribasic acids (R) : H_(3)PO_(3) has two replaceable H-atoms and H_(3)PO_(4) has three replaceable H-atoms

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HI is prepared from Nal , using H_(3)PO_(3) but not H_(2)SO_(4) . Explain.

AAKASH SERIES-VA GROUP ELEMENTS-PRACTICE EXERCISE
  1. The oxyacid of phosphorous which has more non-ionisable hydrogens

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  2. Which of the following is a neutral salt ?

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  3. In H(3)PO(3) molecule

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  4. The following are some statements about oxyacids of VA group elements ...

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

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  6. {:("Oxy acid","Basicity"),("A) "H(3)PO(2),"1) Tribasic"),("B) "H(3)PO(...

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  7. A and B are two gases. ‘A’is identified with a glass rod dipped in NH,...

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  8. 98% pure nitric acid is obtained by

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  9. Aquaregia is a mixture of

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  10. The volume percentage of N(2) in air is 78. The Weight percentage of t...

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  11. When N(2) is obtained from NH(3) using oxide of copper, the change in ...

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  12. A mixture of potassium nitrite and ammonium chloride on heating libera...

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  13. Which statement is not correct for nitrogen?

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  14. If the nitrogen atoms are in a cyclic arrangement in hydrazoic acid, t...

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  15. The allotrope of phosphorous obtained by heating white phosphorous to ...

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  16. Which of the following can acts as both oxidant and redutant

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  17. Concentrated nitric acid oxidises phosphorous and iodine, respectively...

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  18. In solid state PCl(5), exists as ionic solid i.e., [X]^(+), [Y]^(-) sh...

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  19. In P(4)O(6) the number number of oxygen atoms bondedto each P atom is

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  20. P(4)O(10) on reactigwith watr does not form

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