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Mercury is a liquid metal because...

Mercury is a liquid metal because

A

it has a completely filled s-orbital

B

it has a small atomic size

C

it has a completely filled d- orbital that prevents d-d overlapping of orbitals

D

it has a completely filled d-orbital that causes d-d overlapping

Text Solution

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The correct Answer is:
C
The electronic configuration of mercury (80) is , `[Xe]4f^(10),5d^(5),6s^(2)`. Its d-subshell is completely filled, thus it prevents the overlapping of d-oebitals (d-doverlapping). Hence, it is a liquid metal at room temperature.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-D - AND F-BLOCK ELEMENTS-Practice exercise (Exercise 1)
  1. The coordination number in a/an….. Complex may increase to 8.

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  2. The spin only magnetic moment of Mn^(4+) ion is nearly

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  3. Mercury is a liquid metal because

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  4. The highest oxidation state exhibited by a transition metal is

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  5. The magnetic moment of a transition metal ion is 3.87BM. The number of...

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  6. The one which has incompletely filled d-orbitals in its ground state o...

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  7. (n-1)d^(10)ns^(2)is the electronic configuration of

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  8. When an electron from a lower energy d-orbital is excited to a higher ...

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  9. Select the correct order of sizes for the following d-block elements.

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  10. In an aqueous solution, Cu(+1) salts are unstable because

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  11. Which of the following pairs has the same size ?

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  12. Which of the following statements concerning transition elements is fa...

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  13. Which of the following is expected to be coloured?

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  14. Out of Cu^(2+),Ni^(2+),Co^(2+) and Mn^(2+) those dissolved in dil. HCL...

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  15. The stability of ferric ion is due to

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  16. The spin only magnetic moment of Fe^(2+) ion (in BM) is approximately

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  17. Which one of the following transition metal ions is diamagnetic?

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  18. Which of the following is not a characteristic of transition elements?

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  19. Which of the following pair of transition metal ions, have the same ca...

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  20. The metal which is considered as transition metal is

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