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In the Lewis dot structures, cross marks...

In the Lewis dot structures, cross marks or dots represents

A

`1`. Valence electrons & Nucleus

B

`2`. valence electron

C

`3`. Nucleus

D

`4`. Kernel

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VGS PUBLICATION-BRILLIANT-CHEMICAL BONDING-EXERCISE
  1. Which of the following is correct order of repulsive interactions ?

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  2. Hybridization produces a set of orbitals which are

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  3. In the Lewis dot structures, cross marks or dots represents

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  4. The directional nature of covalent bond was introduced by

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  5. A pi bond is formed by overlap of orbitals.

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  6. The bond angles in : BeCl2, BF3, H2O

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  7. Covalent bond is formed by

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  8. Hybridisation involves:

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  9. Ionic bond is formed between IA group and VII A group, because

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  10. How can you explain the formation of NaCl according to kossel concept?

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

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  12. Bond formed by mutual sharing electrons is called

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  13. Number of electrons given by an atom of element in the formation of co...

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  14. Which of the following step is not involved in the formation of MgCl2

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  15. Why is sigma - bond stronger than pi - bond ?

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  16. Electrons in shell are called valence electrons.

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  17. Assertion (A): Na-- forms an ionic bond. Reason (R): Number of valen...

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  18. Statement (A) : Group IIA elements try to lose two valence electrons f...

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  19. Assertion (A): Helium is noble gas. Reason (R) : Any species (atoms o...

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  20. Active elements : Group I :: Inactive. elements:

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