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Which of the following atomic numbers re...

Which of the following atomic numbers represent group 13 elements ?

A

13

B

53

C

31

D

81

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
Group 13 elements have atomic number 5,13 31, 49 and 81.
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DINESH PUBLICATION-THE BORON FAMILY -Selected Straight Objective Questions MCQs
  1. Metals commonly extracted by Gold Schmidt's alumino-thermic process is...

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  2. The distinctly basic oxides out of the following are

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  3. Elements of group 13 not reacting with water are

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  4. Which of the following do not sublime on heating ?

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  5. Which of the following atomic numbers represent group 13 elements ?

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  6. Mark the incorrect statement. Pure alumina is

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  7. On heating with carbon, which of the following elements do not form ca...

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  8. The two elements which react with air readily are

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  9. The metals that cannot be obtained by electrolysis of the aqueous solu...

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  10. The major role of fluorspar, which is added in small quantities in the...

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  11. Alum is used by dyers of clothes

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  12. In the aluminothermic process, Al acts as a/an

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  13. Thermite is a mixture of

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  14. Hydrogen will not reduce

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  15. In the electrolysis of alumina, cryolite is added to

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  16. When zeolite which is hydrated sodium aluminium silicate is treated wi...

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  17. In which of the following minerals, Al is not present

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  18. In commercial electrochemical process for Al extraction, electrolyte u...

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  19. Electrolytic reduction of alumina to aluminium by Hall-Heroult process...

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  20. H(3)BO(3) is

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