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Which set does not shows correct matchin...

Which set does not shows correct matching according to Modern periodic table:

A

`Sc^(3+)-[Ne]3s^(2)3p^(6)" "`zero group

B

`Fe^(2+)-[Ar]3d^(6)" "8^(th)`group

C

`Cr-[Ar]3d^(5)4s^(1)" "6^(th)` group

D

All of the above

Text Solution

Verified by Experts

The correct Answer is:
D
`1gm` molecular is 1 mole
Mole of `SO_(4)^(2-)4xx1=4 gm `ion.
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  2. In which of the following pairs, the first member has higher first ion...

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  6. The statement that is not correct for periodic classification of eleme...

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  7. In the modern periodic table, the block indicates the value of ……………… ...

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  9. Which set does not shows correct matching according to Modern periodic...

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  10. Atomic radii of fluorine and neon in Angstrom units are respectively g...

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  11. Which of the following element has the highest ionisation enregy ?

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  12. The set representing the correct order of the first ionisation potenti...

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  13. Which of the following relation is correct with respect first (I) and ...

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  15. For which of the following process, the value of electron gain enthalp...

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  17. If ionisation energy of an atom is 10 eV & EA is 6.8eV electronegativi...

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