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Which of the following pairs of elements...

Which of the following pairs of elements will give super oxides and peroxides respectively when heated with exvess of air -

A

`K, Br`

B

`Na, Rb`

C

K, Rb

D

Na, Ba

Text Solution

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The correct Answer is:
C, D
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CHHAYA PUBLICATION-s-BLOCK ELEMENTS -MCQ HOTSPOT (MORE THAN ONE CORRECT TYPE)
  1. Which of the following pairs of compounds cannot exist in aqueous solu...

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  2. The compounds which on heating do not form oxides are -

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  3. Which of the following pairs of elements will give super oxides and pe...

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  4. Which of the following do not respond to flame test -

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  5. Which of the following compounds is paramagnetic

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  6. Which of the following are incorrect -

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  7. Which ions of water are replaced by sodium ion when hard water is pass...

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  8. The compounds which are soluble in organic solvents are-

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  9. The compounds formed when potassium superoxide reacts with water are -

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  10. Which of the following hydrated salts undergo hydrolysis on heating -

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  11. Which of the following compounds are extensively used as drying agents...

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  12. Each of the following compounds react with water but which of these li...

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  13. Polarisability of LiCl is higher than that of NaCI. With respect to th...

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  14. Which of the following statements are correct

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  15. Which of the following statements are incorrect about the hydrates of ...

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  16. Which of the following statements are correct about the ionic solids K...

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  17. The compounds which do not form NO2 on undergoing thermal decompositio...

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  18. Metals are identified by their standard reduction potential, enthalpy ...

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  19. Which of the following sulphates easily dissolve in water

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  20. The properties of beryllium nitride which are different from the nitri...

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