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N(2)(g)+3H(2)(g)overset(Fe+Mo)hArr2NH(3)...

`N_(2)(g)+3H_(2)(g)overset(Fe+Mo)hArr2NH_(3)(g)`, Haber's process, Mo is used as:

A

a catalyst

B

a catalytic promoter

C

an oxidixing agent

D

as a catalytic poison

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The correct Answer is:
B
Mo is a promoter
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NARAYNA-D - BLOCK ELEMENTS-EXERCISE-1 (INTRODUCTION)
  1. Which of the following compounds are coloured due to charge transfer s...

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  2. Which of the following pairs are not both coloured in aqueous solution...

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  3. N(2)(g)+3H(2)(g)overset(Fe+Mo)hArr2NH(3)(g), Haber's process, Mo is us...

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  4. Which one of the following shows highest magnetic moments?

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  5. Which of the following ion has the maximum magnetic moment?

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  6. The value of the 'spin only magnetic moment for one of the following c...

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  7. The "spin-only" magnetic moment [in units of Bohr magneton, (muB)] or...

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  8. In a transition series, as the atomic number increases, paramagnetism

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  9. The magnetic moment of a transition metal ion is 3.87BM. The number of...

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  10. Permanent magnets are generally made of alloys of

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  11. Which of the following group of transition metals is called coinage me...

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  12. The product obtained on treating KMnO(4) with very strong alkali in ab...

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  13. The oxidation of manganate ion to permanganate ion can be done by

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  14. When SO(2) is passed through acidified K(2)Cr(2)O(7) solution

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  15. Which of the following statement is correct when a mixture of CaCl(2) ...

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  16. German silver is an alloy of copper and:

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  17. Bell metal is an alloy of

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  18. A complex involving dsp^(2) hybridisation has

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  19. A mixture of TiO(2) and BaSO(4) is called

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  20. The metal present in vitamin B(12) is

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