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Why Cs and K are used as electrodes in p...

Why Cs and K are used as electrodes in photoelectric cells ?

A

Due to their less ionisation energy

B

Due to high ionisation energy

C

Due to diagonal relationshiop

D

none of these

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The correct Answer is:
A
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SURA PUBLICATION- ALKALI AND ALKALINE EARTH METALS-ADDITIONAL QUESTION ( ADDITIONAL CHOOSE THE CORRECT ANSWER)
  1. Which of the following metals is most commonly used in photochemical c...

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  2. Which among the folJowing is the strongest reducing agent?

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  3. Why Cs and K are used as electrodes in photoelectric cells ?

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  4. Which among the following alkali metals exhibit the most metallic char...

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  5. The correct increasing order of density of alkali metals is

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  6. Alkaline earth metals belong to group of the periodic table.

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  7. The metallic lusture exhibited by sodium is due to,

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  8. NaCl gives a golden yellow colour to the Bunsen flame which is due to.

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  9. Assertion : Lithium is in diagonal relationship with magnesium Reaso...

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  10. occurs in large amounts in sea water.

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  11. Which of the following oxides is the most basic in nature?

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  12. The most stable hydride of the following

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  13. Which hydroxide decomposes on heating ?

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  14. Which of the following halides has the highest melting point-

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  15. The polarising power of Mg is almost same as

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  16. Find out the correct statement with respect to alkali metals.

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  17. Assertion : Na2SO4 is soluble in water but BaSO4 is insoluble Reason...

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  18. Correct electronic configuration of Cr is

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  19. The radioactive element of group 2 element is

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  20. Alkaline earth metals exhibit oxidation state in their compounds.

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