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1. Read the conversation: ZINC:Oh …..Ma...

1. Read the conversation:
ZINC:Oh …..Manganese and iron....you are Iucky, your compounds are coloured. But-I cannot give colour to my compounds. which you have. a. Are the words of zinc true? b: Iron cannot put forward a solution for the problem being faced by.Zn. Why?

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a. Yes. Zn cannot form coloured compounds. b. The electronic configuration of zinc (30) is .1 (Ar)]. .3 (~d)^(10) 4 (~s)^(2).. In compound òf zinc, the oxidation number of Z n is +2. So it contains filled d -orbitals. So no chance for d-d transition and hence has no colour.
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  1. Comment on the statement that elements of the First transition series ...

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  2. What can be inferred from the magnetic. Moment values of the following...

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  3. 1. Read the conversation: ZINC:Oh …..Manganese and iron....you are Iu...

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  4. 2. Some d - block elements are given below: (Cr,Mn,Fe,Cos,Ni) a. Ident...

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  5. During the estimation of Mohr's: salt. by using potassium permanganate...

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  6. The following is a part of d-block of the periodic table '(##VPUHSS...

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  7. Mn exhibits large number of oxidation states in its compounds: Which ...

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  8. Transition elements show various oxidation -states and many, of the tr...

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  9. On what ground can you say that Sc(Z=21) is a transition element but Z...

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  10. Silver atom has completely filled d- orbitals (4d") in its ground stat...

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  11. Calculate the magnetic moment of the divalent ion in aqueous solution ...

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  12. Actinoid contraction is greater from element to element than lanthanoi...

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  13. Chromium (Cr), Molybdenum (Mo) and Tungsten '(W)' are hard metals wher...

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  14. Cuprous ion (Cu+) can not be considered as a transition element while ...

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  15. The atomic radii of the second and third transition series are almost ...

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  16. d-block elements have high melting and boiling points. Why?

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  17. Manganese and technetium have very low melting points. Why?

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  18. Name the transition element with highest density?

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  19. K2PTCl6' is a well known compound while the corresponding nickel salt ...

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  20. Copper cannot liberate (H)(2). from acids. Why?

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