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The melting point of Zn is lower as comp...

The melting point of `Zn` is lower as compared to those of the other elements of `3d` series because:

A

The orbitals are completely filled.

B

the d-orbitals are partially filled

C

d-electrons do not participate in metallic bonding

D

size of `Zn` atoms is smaller

Text Solution

Verified by Experts

The correct Answer is:
AC
Strong metallic bonds between the atoms of transition elements attribute to their high melting and boiling points . Zinc has all electrons paired `([Ar] 3d^(10) 4s^(2))` and thus do not participate in metallic bonding . SO accordingly its melting point is least.
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RESONANCE-D BLOCK ELEMENTS-EXERCISE-I PART-II
  1. The atomic volume of the transition elements are low compared with ele...

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

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  3. The melting point of Zn is lower as compared to those of the other ele...

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  4. First IE of 5d seties element are higher than those of 3d and 4d serie...

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  5. which of the following statement is correct?

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  6. ionisation energies of Ni and Pt in Kjmol^(-1) are given below {:(,u...

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  7. Maximum oxidation state is shown by:

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  8. The less stable oxidation state of Cr are:

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  9. Which of the following statement is false?

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  10. Whih of the followin statement are correct?

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

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

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  13. A metal ion from the first transition series has a magnitic moment (ca...

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

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

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  16. which of the following group of ion is paramagnetic in nature:

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

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  18. Which one of the ionic species will impart colour to an aqueous soluti...

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  19. MnO(4)^(-) is of intense pink colour, though Mn is in(+7) oxidation st...

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  20. The yellow colour of chromates changes to orange on acidification due ...

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