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Calculate the oxidation number of K in K...

Calculate the oxidation number of K in K2CO3

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(i) `ul(K)MnO_(4)`
x + 7 + 4(-2) = 0
x + 7 - 8 = 0
x - 1 = 0
x = +1
(ii) `ul(K)_(2) Cr_(2)O_(7)`
2x + 2 (+6) + 7(-2) = 0
2x + 12 - 14 = 0
2x - 2 = 0
x = +1
(iii) `ul(K)Cl`
x - 1 = 0
x = +1
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OMEGA PUBLICATION-REDOX REACTIONS -MULTIPLE CHOICE QUESTIONS (MCQs)
  1. Calculate the oxidation number of K in K2CO3

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  2. Electrolysis involves oxidation and reduction respectively at

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  3. The cathode in a galvanic cell and electrolytic cell is

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  4. In a galvanic cell,

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  5. K, Ca and Li metals may be arranged in the decreasing order of their s...

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  6. The standard reduction potential of three metallic cations X, Y and Z ...

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  7. Arrange the following in the decreasing order of their acidic strength...

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  8. Calculate the oxidation number of P in phosphate ion.

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  9. Calculate the oxidation number of P in H3PO3

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  10. Calculate the oxidation number of C in C2H6

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  11. How many orbitals are present in f subshell.

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  12. Galvanised iron sheets are coated with: C, Cu, Zn, Ni.

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  13. According to classical concept, oxidation is a process of

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  14. According to electronic concept, oxidation involves

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  15. Write down the values of azimuthal quantum number possible for electro...

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  16. How many orbitals are present in p subshell .

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  17. How many orbitals are present in s subshell.

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  18. In case of oxidation, there is

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  19. Calculate mass of 2.7moles of C(12)H(22)O(11) (molar mass = 342 g/ mol...

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  20. The most common oxidation state of an element is -2. The number of ele...

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  21. In the conversion of K(2)Cr(2)O(7) "to K"(2)CrO(4), the oxidation numb...

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