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Mark the false statement...

Mark the false statement  

A

The electropositive character of alkali metals decreases with increase in atomic number

B

Lithium is a hard metal and cannot be cut with a knife

C

Alkali metals are strong reducing agents

D

Electronegativities of all alkali metals lie between 1.0 and 0.7

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A
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AAKASH SERIES-ALKALI METALS-OBJECTIVE EXERCISE - 1
  1. (A) : Alkali metals are good reducing agents (R) : Alkali metals pos...

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  2. The first three elements of group 1 have the following atomic structur...

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  3. Mark the false statement

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  4. Identify the correct statement

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  5. Pick up the correct statement about the solution on an alkali metal in...

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  6. Potassium metal is - and then sodium?

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  7. Statement-I: Lithium hydride is the stablest of all the alkali metal h...

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  8. Wrong match is

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  9. The reducing power of a metal depends on various factors. Suggest the ...

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  10. A colourless salt gives violet colour to Bunsen flame and also turns m...

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  11. In which of the following the metal is getting oxidised ?

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  12. (A): Lithium reacts with water more vigorously than sodium (R): Lith...

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  13. Peroxides of alkali metals are

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  14. Which of the following is paramagnetic ?

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  15. The metal that gives mainly a monoxide when heated in excess of O(2) i...

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  16. The oxidation statel of oxygen in superoxide is

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  17. Potassium metal is heated strongly in O(2). It produces

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  18. (A): The lattice energy of superoxide of alkali metals increases with ...

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  19. The following compounds of all alkali metals are coloured

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  20. The species which contains unpaired electrons is

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