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What is the oxidation number of Mn in K2...

What is the oxidation number of Mn in `K_2 Mn O_4`?

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What is the oxidation number of Mn in K_(2) MnO_(4) ?

What is the oxidation number of Mn in K_(2) MnO_(4) ?

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UNITED BOOK HOUSE-HIGHER SECONDARY EXAMINATION 2018-EXAMPLE
  1. What is the purpose of adding a food preservative to a packaged food?

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  2. Which of the following is most acidic in character?

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  3. What is the oxidation number of Mn in K2 Mn O4?

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  4. What are the dispersed phase and dispersion medium in soap lather?

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  7. At a constant pressure, the solubility of a gas in a liquid, solvent c...

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  8. Why the vapour pressure is lowered when urea is dissolved in water und...

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  9. The particles of a true solution can pass through a semi-permeable mem...

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  10. What is chemisorption? Explain with an example.

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  11. Write with balanced chemical equation, what happens when chlorine gas ...

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  12. Write with balanced chemical equation, What happens when white phospho...

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  13. How many isomers are possible for [Co(NH3)4CI2? Draw their struc-tures...

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  14. What is condensation polymerisation? Write with an example.

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  15. What is the total number of voids in cubic close packed lattice?

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  16. Metallic gold (Au) crystallises in face-centred cubic lattice. What is...

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  17. What is a p-type semiconductor?

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  18. A cubic solid is made of two elements P and Q. Atoms of Q are at the c...

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  19. The concentration of a solution is 0.4M.What does it mean?

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