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Which of the following are Lewis acids-...

Which of the following are Lewis acids-

A

`PH_3 and SiCl_4`

B

`BCl_3 and AlCl_3`

C

`PH_3 and BCl_3`

D

` AlCl_3 and SiCl_4`

Text Solution

Verified by Experts

The correct Answer is:
A
Both `BCl_3 and AlCl_3` has incomplete octet around the central atom. Thus they can act as Lewis acids.
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CHHAYA PUBLICATION-SOME p-BLOCK ELEMENTS-ENTRANCE (QUESTION BANK)
  1. Which of the following ions cannot be formed by boron-

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  2. Which of the following exists as covalent crystals in the solid state-

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  3. Which of the following are Lewis acids-

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  4. Which of the following oxide is amphoteric -

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  5. Which of the following statements is incorrect-

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  6. Name the two types of the structure of silicate in which one oxygen at...

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  7. Which of these is least likely to act as a Lewis base

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  8. Which of the following is electron deficient-

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  9. Number of carbon atoms per unit cell of diamond unit cell is -

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  10. Which of these is not a monomer for a high molecular mass silicone pol...

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  11. Which of the following structure is similar to graphite -

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  12. The basic structural unit of silicate is -

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  13. The stability of +l oxidation state among Al, Ga, In and Tl increase i...

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  14. AlF3 is soluble in HF only in presence of KF. It is due to the formati...

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  15. Boric acid is an acid because its molecule

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  16. It is because of inability of n^2 electrons of the valence shell to pa...

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  17. Which one of the following elements is unable to form MF6^(3-) ion-

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  18. The correct order of atomic radii in group-13 elements is-

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  19. The wrong statement about fullerene is-

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  20. Iodine oxidises sodium borohydride to give-

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