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In neutral or faintly alkaline medium, t...

In neutral or faintly alkaline medium, thiosulphate is quantitatively oxidized by `KMnO_4` to

A

`SO_3^(2-)`

B

`SO_4^(2-)`

C

`SO_2`

D

`SO_5^(2-)`

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
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  2. An orange solid A on heating gives a colourless gas B. The gas B in dr...

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  3. In neutral or faintly alkaline medium, thiosulphate is quantitatively ...

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  4. Which of the following ions has the same number of unpaired electrons ...

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  5. Among the following actinoid pairs, the maximum oxidation states is sh...

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  6. The atomic number of cerium (Ce) is 58. The correct electronic configu...

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  7. The only radioactive element among the lanthanoids is

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  8. Identify a ‘Chemical twin' among the following

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  9. How many grams of potassium dichromate are required to oxidise 20.0 g ...

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  10. Which of the following statement regarding lanthanides is false?

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  11. How is sodium chromate converted into sodium dichromate, in the manufa...

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  12. Identify the metal that forms colourless compounds.

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  13. What is the general molecular formula of the products obtained on heat...

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  14. Choose the wrong statement in the following:

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  15. In aqueous solution, Cr^(2+) is stronger reducing agent than Fe^(2+). ...

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  16. Choose the correct matching of transition metal ion and magnetic momen...

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  17. The bivalent metal ion having maximum paramagnetic behaviour is

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  18. When a brown compound of manganese (A) is treated with HCl it gives a ...

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  19. Why are Mn^(2+) compounds more stable than Fe^(2+) compounds towards o...

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  20. WhenI^(-) is oxidised by MnO4^(-) in alkaline medium, I^(-) converts ...

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