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Photoelectric effect is the maximum in...

Photoelectric effect is the maximum in

A

`Cs`

B

`Na`

C

K

D

`Li`

Text Solution

Verified by Experts

The correct Answer is:
A
Photoelectric effect `prop (1)/(I.P)`
i.e. Cs has maximum photoelectric effect
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ALLEN-S-BLOCK ELEMENTS -EXERCISE
  1. In presence of iron, alkali metal react with liquid ammonia and form

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  2. The ionic conductance of following cation in a given concentration are...

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  3. Photoelectric effect is the maximum in

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  4. Which of the following carbides on treatment with water give methane ...

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  5. When a standard solution of NaOH is left in air for a few hours:

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  6. The ionic mobility of alkali metal ions in aqueous solution is maximum...

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  7. Which is used in purification of air in the space craft.

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  8. Which of the following alkaline earth metal sulphate is least soluble ...

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  9. In aqueous solution, the largest ion is :

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  10. The correct order of ionic character of oxides of alkali earth metal:-

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  11. Potassium super-oxide (KO(2)) is used in space capsuled, submarines, a...

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  12. Compounds of alkaline earth metals are generally less soluble in water...

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  13. The melting point of NaCI is high because:-

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  14. The products obtained on heating LiNO(3) will be

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  15. Which of the following on thermal decomposition yields a basic as well...

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  16. Which is having highest m.p-

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  17. Weak reductant in alkali metal is-

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  18. The metal used in photoelectric cell is-

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  19. Lithium chloride is highly soluble in-

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  20. Which metal will not form superoxide-

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