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In the case of alkali metals, the covale...

In the case of alkali metals, the covalent character decreases in the order.

A

`MF gt MCl gt MBr gt MI `

B

`MF gt MCl gt MI gt MBr`

C

`MI gt MBr gt MCl gt MF`

D

`MCl gt MI gt MBr gt MF`

Text Solution

Verified by Experts

The correct Answer is:
C
According to Fajan rules , larger the size of anion, greater is the covalent character .
Order of size of anions : `I^(-) gt Br^(-) gt Cl^(-) gt F^(-)`
`:.` Covalent character : `MI gt MBr gt MCl gt MF`
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MODERN PUBLICATION-S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS ) -COMPETITION FILE ( MULTIPLE CHOICE QUESTION (B))
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  2. Equimolar solution of the following were prepared in water separately....

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  3. In the case of alkali metals, the covalent character decreases in the ...

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  4. Which of the following oxides is not expected to react with sodium hyd...

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  5. Which of the following does not react with water?

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  6. Which of the following on thermal decomposition yields a basic as wel ...

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  7. Which among the following is kinetically inert towards water?

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  8. Property of the alkaline earth metals that increases with their atomic...

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  9. Which one of the following alkaline earth metal sulphates has its hydr...

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  10. The increasing order of the density of the alkali metal is

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  11. The alkali metal halide that is soluble in pyridine is

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  12. Which one is the correct observation when Br(2) is treated with NaF, N...

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  13. Which one of the following is present as an active ingredient in blea...

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  14. Which of the following compounds has the lowest melting point ?

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  15. Choose the incorrect statement in the following

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  16. Formula of plaster of Paris is

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  17. Which one of the alkali metals forms only the normal oxide, M(2)O, on ...

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  18. Which of the following is the weakest base?

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  19. Which one of the following is the strongest base ?

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  20. The element responsible for the neuromuscular function in the body is

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