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the material used in photoelectric cells...

the material used in photoelectric cells contains ,

A

Cs

B

Li

C

Be

D

Mg

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The correct Answer is:
A
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TARGET PUBLICATION-S-BLOCK ELEMENTS-QUESTION
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  2. is an excellent abdorbent of carbon dioxide .

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  3. the material used in photoelectric cells contains ,

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  4. Sodium and potassium ions maintain .

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  5. Which of the following is FALSE ?

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  6. In humans ,NaCl is a source of for gastric juices .

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  7. Which of the follows indicates deficiency of potassium in human ...

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  8. The alkaline earth metals Ba,Sr ,Ca and Mg may be arranged in ...

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  9. The first ionization enthalpies of alkaline earth metals are hi...

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  10. Which of the following alkaline earth metal does NOT react wi...

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  11. BeH(2) is prepared reducing BeCl(2) with .

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  12. Which of the following statements is INCORRECT ?

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  13. An oxide of alkaline earth metal on heating with carbon in the ...

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  14. which of the following has highest melting and boiling point ?

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  15. Oxides and hydroxides of alkaloine earth metals EXCEPT beryllium ...

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  16. An alloy contatining 1- 15 % Mg and 85-99% Al is known as .

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  17. Which of the following metal is used to remove sulphur from p...

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  18. An element X is used in the extraction of metal from their ox...

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  19. The first member if the group -2- elements exhibits diagonal relati...

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  20. which of the following represents beryllate ion ?

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