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Select correct statements:...

Select correct statements:

A

Helium has the lowest melting point and boiling point

B

Helium can diffuse through rubber, PVC and even glass

C

Ar, Krand Xe form clathrate

D

All the above are correct statements

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The correct Answer is:
D
All the above are correct statements
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BRILLIANT PUBLICATION-P-BLOCK ELEMENTS-LEVEL-II
  1. Which of the following is correct?

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  2. The oxyacid of phosphorus in which phosphorus has the lowest oxidation...

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  3. How many peroxy linkages are present in pyrophosphric acid?

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  4. Which of the following options are true (T) and which are false (F) ? ...

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  5. Which of the following series of fluorides is known?

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  6. The compounds of S obtained by reaction of S and conc. hot KOH when re...

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  7. Which of the following pseudohalides does not form dimer like halogen ...

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  8. Which blue-liquid is obtained on reacting equimolar amounts of two gas...

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  9. Select correct statement. (i) Mixture of NH4Cl and NaNO2 on heating...

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  10. The true statement for the acids of phosphorus, 'H3PO2, H3PO3 and H3...

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  11. NH4Cl(s) is heated in a test tụbe. Vapours are brought in contact with...

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  12. The thermal stability of hydrides of oxygen family is in order :

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  13. Which of the following can convert acidified Cr2O7^(2-) to green? SO2/...

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  14. Bleaching of a fabric cloth is done using Aand excess of chlorine is r...

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  15. Select incorrect statement

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  16. Which of the underlined atoms in oxyacids have sp^3 hybridised atoms?

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  17. In the preparation of HBr or HI, NaX (X=Br, I) is treated with H3PO4 a...

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  18. Cl2O , Br2O, I2O have positive value of DeltaG (free energy) indicati...

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  19. Select correct statements:

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  20. Basic character of fluorides increases in the order X e F 6 < X e F 4...

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