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Valencies of the elements of the group I...

Valencies of the elements of the group IA, IIA, VIIA and VIII A are____ respectively.

A

1, 2, 7, 8

B

1, 2, 1,0

C

1, 2, 7,0

D

1, 2, 3, 4

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VGS PUBLICATION-BRILLIANT-CHEMICAL BONDING-EXERCISE
  1. The charge on a cation 'M' is +2 and anion 'A' is -3. The compound for...

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  2. X ---rarr 2, 8, 1 and X^+---rarr 2, 8. The 'X' can formbond.

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  3. Valencies of the elements of the group IA, IIA, VIIA and VIII A are r...

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  4. Na, Mg, Al, N, O, F, Ne are given. Which one is more stable ?

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  5. 15P= 2, 8, 5, 16S = 2, 8, 6,17Cl = 2, 8, 7.Which of the above atoms ca...

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  6. An electronic configuration of an atom is 2, 8, 7. The valency of the ...

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  7. Which one is different among ?i) Nacl, ii)MgCl2, iii)HCl, iv)Na2O

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  8. Which of the following can form cations ?i)11 Na ii) 15 P iii)13 Al iv...

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  9. Ne' configuration among the given : i) Cl^-,ii) Mg^2+,iii)O^2-

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  10. Component ions in the compound AlCl3 are

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  11. In sodium chloride crystal the coordination number of Na^+ is

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  12. Bond energies of F-F = 159 KJ/mol.H-F = 570 KJ/mol.H-Cl = 432 KJ/mol.W...

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  13. Which of the following molecules show lone pair of electrons?

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  14. Boiling points of X, Y and Z are 1413^@C, -84.9^@C and -88.63^@c respe...

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  15. Which of the following is a polar molecule

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  16. Sodium atoms and sodium ions

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  17. Which of the following can lose two electrons to attain the configurat...

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  18. Which of the following has largest bond angle?

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  19. Which of the following is an ionic compound?

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  20. The electron covalent linkage is not in the compound

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