p-Block Elements - 15 (Noble Gases)

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Q1. Which of the noble gas has highest polarizability? *

1 point

Q2. The noble gas which was discovered first in the sun and then on the earth *

1 point

Q3. A radioactive element X decays to give two inert gases X is *

1 point

None

Both

Q4. Which of the following noble gases has the highest positive electron gain enthalpy value? *

1 point

Q5. The ease of liquefaction of noble gases increases in the order *

1 point

Kr < Xe < He < Ne < Ar

He < Ne < Ar < Kr < Xe

Ar < Kr < Xe < Ne < He

Xe < Kr < Ne < Ar < He

Q6. The correct order of solubility in water for He, Ne, Ar, Kr, Xe is *

1 point

Ar > Ne > He > Kr > Xe

Xe > Kr > Ar > Ne > He

Ne > Ar > Kr > He > Xe

He > Ne > Ar > Kr > Xe

Q7. Noble gases are group of elements which exhibit very *

1 point

Minimum electronegativity

High chemical activity

Much paramagnetic properties

Low chemical activity

Q8. Which one of the following elements is most reactive ? *

1 point

Q9. In XeF2, XeF4, XeF6 the number of lone pairs on Xe are, respectively *

1 point

0, 1, 2

3, 1, 2

1, 2, 3

3, 2, 1

Q10.Total number of lone pair of electrons in XeOF4 is *

1 point

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