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Iron is rendered passive by treatment wi...

Iron is rendered passive by treatment with concentrated

A

HCl

B

`H_(2)SO_(4)`

C

`HNO_(3)`

D

both (B) & (C )

Text Solution

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The correct Answer is:
C
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NARAYNA-D BLOCK & TRANSITION ELEMENTS-Level-V (H.W)
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  2. Of the ions Zn^(2+),Ni^(2+) and Cr^(3+) (atomic number Zn=30,Ni=28,Cr=...

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  3. Iron is rendered passive by treatment with concentrated

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  4. Which of the following dissolves in hot concentrated NaOH solution?

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  5. Among the following, identify the species with an atom in +6 oxidation...

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  6. The pair of compounds having metals in their highest oxidation state i...

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  7. Which of the following pair of compounds is expected to exhibit same c...

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  8. Among the following the coloured compound is .

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  9. The colour of KMnO(4) is due to

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  10. Which of the following statement are correct about Cr^(2+) (Z = 24) an...

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  11. Aqurated copper (I) catin undergoes disproportionation as 2Cu^(+)(a...

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  12. In solution, the stability of the d-block compounds depends upon elect...

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  13. Which of the following is the best oxidant?

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  14. Which of the following is the best reductant?

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  15. Mn shows its highest oxidation state in its

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  16. Transition elements form binary compounds with halogens. Which of the ...

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  18. Which of the following statement(s) is/are correct

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  19. Correct statements among the following is/are:

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  20. The correct statement among the following is:

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