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Which of the following elements never sh...

Which of the following elements never show positive oxidation number?

A

O

B

Fe

C

Ga

D

F

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The correct Answer is:
D
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AAKASH INSTITUTE-REDOX REACTIONS-EXERCISE
  1. Oxidation state of nitrogen in H-N equiv C is

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  2. Oxidation state of oxygen in CrO(5) is

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  3. The number of peroxide linkages in CrO(5) " and " H(2)SO(5) respective...

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  4. The pair of the compounds in which both the metals are in the highest ...

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  5. Oxidation number of chlorine atoms in CaOCl(2) are

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  6. When ethane is burnt in excess of oxygen,, the oxidation number of car...

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  7. The oxidation state of oxygen in the following reaction changes, K+O(2...

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  8. The number of electrons involved when 1 mole of H(2)O(2) decomposes as...

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  9. Which of the following elements never show positive oxidation number?

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  10. When SO(2) is passed in acidified K(2)Cr(2)O(7) solution oxidation sta...

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  11. In an electrochemical cell, the flow of electrons is from

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  12. In SHE, the pH of the acid solution

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  13. An electrochemical cell has two half cell reaction as, A^(2+)+2e^-,E^0...

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  14. Which of the following is the most reactive metal?

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  15. Which of the following element has maximum standard reduction potentia...

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  16. Choose the correct statement for galvanic cell

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  17. Which of the following involves redox reaction?

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  18. Which of the following is true about salt bridge?

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  19. Standard reduction potential is calculated at

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  20. The electrochemical cell representing the given reaction Ni(s)+Cu^(2...

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