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Orthophosphoric acid is...

Orthophosphoric acid is

A

Both A and R are correct and R is the correct explanation of A

B

Both A and R are correct and R is not the correct explanation of A

C

A is correct R is wrong

D

A is wrong R is correct

Text Solution

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The correct Answer is:
A
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Write complete balanced reactions for the following : (a) Red phosphorous reacts with iodine in presence of water. (b) White phosphrous is boiled with a strong solution of NaOH in an inert atmosphere. ( c) Phosphorous reacts with conc. HNO_3 to give H_3PO_4 . (d) Iodine reacts with concentrated nitric acid. (e) Orthophosphoric acid is heated with nitric acid and ammonium molybdate. (f) Disodium hydrogen phosphate is added to ammonical solution of magnesium sulphate. (g) Magnesium is burnt in air and the product is treated with water. (h) Phosphine is passed through AgNO_3 solution. (i) A mixture of air and ammonia is passed over heated platinum gauze. (j) Gold is treated with aqua regia. (k) Water is added to calcium phosphide. (l) Calcium phosphate is heated with a mixture of sand and carbon. (m) Phosphorous reacts with nitric acid to give equimolar ratio of nitric oxide and nitrogen dioxide. (n) Zinc is treated the very dilute nitric acid. (o) Phosphine is treated with an acidified CuSO_4 solution.

Assertion (A) : Ortho phosphoric acid is tribasic acid Reason (R) : Orthophosphoric acid forms three series of salts.

Orthophosphoric acid on heating gives :

Orthophosphoric acid loses water on heating. The reaction sequence is represented as:

Molarity of a given orthophosphoric acid solution is 3M. Its normality is

NARAYNA-15TH GROUP ELEMENTS-Level-VI
  1. Assertion Bond angles of NH(3),PH(3),AsH(3) and SbH(3) decrease in ord...

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  2. Trisilyamine (SiH(3))(3) N is

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  3. Orthophosphoric acid is

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  4. Assertion (A) : Stability of NH(3) is greater than PH(3) Reason (R) ...

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  5. Which of the following oxide/oxy-anions does not contain P-O-P linkage...

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  6. Assertion: Nitric oxide is paramagnetic in the liquid and solid states...

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  7. Conc. HNO(3) can be stored in a container made of

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  8. Assertion: Red phophorus is less volatile then white phosphorus. Rea...

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  9. Assertion : white phosphorus is more reactive than red phosphorus Re...

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  10. Which of the following compounds does not liberate nitrogen gas on tre...

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  11. The true statement among the following are:

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  12. The IUPAC name of the element with atomic number Z = 109 is

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  13. Valency and oxidation number of nitrogen in N(2)O(5)

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  14. Complete the following. HNO(3)+P(4)O(10)to

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  15. The number of hydroxyl group in pyrophosphoric acid is

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  16. Find the number of ppi-ppi bonds in N(2)O.

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  17. VA group elements form tri oxides and pentoxides of the type M(2)O(3) ...

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  18. The correct order of the oxidation states of nitrogen in NO, N(2)O, N...

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  19. Let us consider the following reactions: NH(3)+NaOCI overset("indilu...

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  20. Let us consider the following reaction: N(2)O(5)+NaCI rarr X +Y (X is ...

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