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Which of the following is not true about...

Which of the following is not true about helium ?

A

It has the lowest boiling point.

B

It has the highest first ionization energy.

C

It can diffuese through rubber an dplastic material.

D

It can form clathrate compound.

Text Solution

Verified by Experts

The correct Answer is:
D
Due to small size of He. It escapes from interstitial spaces `//` voids of molecular lattice of quinols.
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RESONANCE-P BLOCK ELEMENTS-PART -II
  1. Which of the following is not true about helium ?

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  2. Write the two important minerals of fluorine.

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  3. Name four oxyacids of chlorine. Give their molecular formulae.

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  4. Name the oxide of chlorine which has odd number of electrons and param...

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  5. What is the colour of vapours obtained when an iodide is heated with c...

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  6. Freshly distilled colourless HI (aqueous solution) gradually turns bro...

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  7. A certain compound (X) shows the following reactions. (i)When Kl is ...

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  8. Write is quantum mechanical liquid i.e. helium (II) ? Give its two imp...

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  9. Write down the formula of the noble gas species which are isostructura...

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  10. Distillation of HBr and HBrO3 yields bromine gas.

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  11. Pl3 on hydrolysis yields H3PO3 and HI

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  12. IO(3)^(-) + 6OH^(-)+Cl(2) to IO(6)^(5-) ("periodate")+3H2O+2Cl^(-)

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  13. HBr is a stronger acid than HI because of hydrogen bonding.

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  14. Bleaching powder does not show oxidising properties.

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  15. Noble gases are parmagnetic in nature.

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  16. Neon lights are visible even in fog and moist.

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  17. The high activity of fluorine is due to its …. Dissociation energy

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  18. The atomicity of all halogens is ….

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  19. Among halogen acids (hydrogen halides) ….. Is the strongest reducing a...

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  20. K2Cr2O7+HCl to KCl+CrCl3++

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  21. Iodine reacts with hot concentrated NaOH solution. The products are Na...

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