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Which of the following is incorrect ?...

Which of the following is incorrect ?

A

Ammonia is prepared in the laboratory by the action of NaOH on Ammonium salt

B

All the hydrides of `15^(th)` group are colourless, highly volatile and poisonous gases

C

Metal phosphides upon hydrolysis given phosphine.

D

Metal phosphides upon hydrolysis give phosphoric acid

Text Solution

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The correct Answer is:
D
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RESONANCE ENGLISH-NITROGEN & OXYGEN FAMILY-Exercise 1 (Part-II : Only one option correct type)
  1. Which of the following does not give oxygen on heating?

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  2. Red and white phosphorus will differ but not in:

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  3. Which of the following is incorrect ?

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  4. P(4)+NaOH underset("warm")to Products. Write the products

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  5. Oxyacid formed when NF(3) is hydrolysed is

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  6. Which of the following order regarding thermal stability off hydrides ...

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  7. One mole of calcium phosphide on reaction with excess of water gives

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  8. H(2)S burns in O(2) to form

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  9. Gibbs-Helmoholtz equation relates the free energy change to the enthal...

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  10. In the reaction, Ca(3)P(2)+H(2)O rarr (X) +(Y) the products (X) an...

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  11. N(2) underset("Haber's Process")overset(H(2))rarrX underset("Oslwald's...

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  12. Sulphur trioxide can be obtained by which of the followng reaction?

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  13. NO(2) can be prepared by heating :

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  14. The following equilibria are given by rhoN(2)+3H(2)hArr2NH(3):K(1) ...

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  15. Which of the following oxide of Nitrogen is neutral?

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  16. Which of the following oxides is amphoteric in nature?

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  17. Following are neutral oxides except :

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  18. Aqueous Solution of SO(2) is

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  19. Which of the following oxides is the most acidic?

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  20. The correct order of decreasing acidic strength of oxyacids of group 1...

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