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Match the statements given in Column I w...

Match the statements given in Column I with the oxidation states given in Column II.

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The correct Answer is:
A. `rarr (3)` B. `rarr (1)` C. `rarr (5)` D. `rarr (2)`
A. Oxidation state of Mn in `MnO_(2)` is + 4.
B. Most stable oxidation state of Mn is + 2.
C. Most stable oxidation state of Mn in oxides is + 7.
D. Characteristic oxidation state of lanthanoids is + 3.
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NCERT EXEMPLAR-D AND F-BLOCK ELEMENTS-D And F-Block Elements
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  3. Match the properties given in Column I with the metals given in Column...

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  4. Match the statements given in Column I with the oxidation states given...

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  5. Match the solutions given in Column I and the colours given in Column ...

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  6. Match the property given in Column I with the element given in Column ...

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  7. Match the properties given in Column I with the metals given in Column...

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  8. Assertion (A) Cu^(2+) iodine is not known. Reason (R ) Cu^(2+) oxidi...

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  9. Assertion (A) Separation of Zr and Hf is difficult. Reason (R ) Bec...

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  10. Assertion (A) Actinoids form relatively less stable complexes as compa...

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  11. Assertion (A) Cu cannot liberate hydrogen from acids. Reason (R ) B...

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  12. Assertion (A) The highest oxidation state of osmium is +8. Reason (...

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  13. Identify A to E and also explain the reaction involved.

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  14. When a chromite ore (A) is fused with sodium carbonate in free excess ...

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  15. When an oxide of manganese (A) is fused with KOH in the presence of an...

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  16. On the basis of lanthanoid contraction, explain the following: (i)...

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  17. Answer the following questions (i) Which element of the first transi...

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  18. Mention the type of compounds formed when small atoms like H, C and N ...

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  19. (a) Transition metals can act as catalysts because these can change t...

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  20. A violet compound of manganese (A) decomposes on heating to liberate o...

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