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Write balaned chemical equations for:
(i) Mixture of `K_(2)Cr_(2)O_(7)` and `NaCl` is heated with concentrated `H_(2)SO_(4)`.
(ii) Potassium permanganate is added to a hot solution of manganous sulphate.
(iii). Potassium dischromate and concentrated HCl are heated together.

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(i) `K_(2)Cr_(2)O_(7)+4NaCl+6H_(2)SO_(4)tounderset("Orange")(2CrO_(2)Cl_(2))uarr+4NaHSO_(4)+2KHSO_(4)+3H_(2)O`
(ii) `2KMnO_(4)+3MnSO_(4)+2H_(2)Oto5MnO_(2)+K_(2)SO_(4)+2H_(2)SO_(4)`
(iii) `K_(2)Cr_(2)O_(7)+14HCl underset(Delta)to2KCl+2CrCl_(3)+7H_(2)O+3Cl_(2)`.
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RESONANCE-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 1
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  2. State true or false: Reaction of K(2)Cr(2)O(7) with cold and concentra...

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  3. Write balaned chemical equations for: (i) Mixture of K(2)Cr(2)O(7) a...

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  8. The transition elements have a general electronic configuration:

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  9. The atomic volume of the transition elements are low compared with ele...

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  10. The wrong statement regarding transition metals among the following is...

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  13. Maximum oxidation state is shown by:

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  14. Which of the following statement is false?

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  15. Which of the following has the maximum number of unpaired d-electron?

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  16. The highest magnetic moments is shown by the transition metal ion wit...

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  17. Magnetic moment of Cr^(+2)(Z=24),Mn^(+2)(Z=25) and Fe^(2+)(Z=26) are x...

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  18. The magnetic moment of .(25)Mn in ionic state is sqrt(15)B.M, then Mn ...

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  19. The colour of transition metal ion is attributed to:

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  20. MnO(4)^(-) is intense pint colour, though Mn is (+7) oxidation state, ...

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