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The bond energies of H - H, X - X and H ...

The bond energies of H - H, X - X and H - X are 104 K.Cal, 38K.Cal and 138 K.Cal respectively the electronegativity of 'X' is `[sqrt(67) = 8.18]`

A

3

B

3.5

C

3.8

D

1.7

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-PERIODIC TABLE-OBJECTIVE EXERCISE -2B
  1. The electron affinity values(in KJ "mole"^(-1)) of three halogens x, y...

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  2. Regarding electronegativity i) The element with maximum electro nega...

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  3. The bond energies of H - H, X - X and H - X are 104 K.Cal, 38K.Cal and...

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  4. Match the following in view of highest values

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  5. The atomic numbers of elements A, B, C and D are Z1, Z, Z + 1 and 2 + ...

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  7. Match the following correctly

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  8. Match the following correctly

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  9. Match the following correctly

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  10. Which of the following is not correct in the case of Be and Al ?

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  11. Observe the following statements. Q I. The physical and chemical prope...

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  12. The following are some statements about periodic properties i) Atomi...

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  13. The following are some statements about diagonal relationship i) Th...

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  14. Three elements, X,Y and Z belong to the same period. Their oxides are ...

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  15. The elements 'X', 'Y' and 'Z' form oxides which are acidic, basic and ...

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  16. The formation of O^(-2) and N^(-3) are endothermic, but metal oxides ...

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  17. Some statements are given below. Among them, the correct statement are...

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  19. The radii of F, F^(-), O, O^(2-) are in the order

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  20. O^(2-) and Si^(4+)are isoelectronic ions. If the ionic radius of O^(2-...

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