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Which of the following statement about S...

Which of the following statement about `Si` is correct.

A

`Si` predominantly forms covalent componds with oxidation number as `+4`.

B

Ionisation enthalpy of `Si` is more than that of carbon.

C

Electron affinity of `Si` is less than that of carbon.

D

`Si` can't show coordination number more than `4`.

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The correct Answer is:
A
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RESONANCE-P-BLOCK ELEMENT (BORON AND CARBON FAMILY)-Advanced Level Problems Part-I : PRACTICE TEST-1 (IIT-JEE (MAIN Pattern))
  1. Which of the following is the correct graph for EN values of carbon fa...

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  2. Select the incorrect statement :

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  3. Which of the following statement about Si is correct.

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  4. Identify correct statement.

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  5. 4BCl(3)+ 3LiAIH(4) to A+ 3AlCl(3)+3 LiCl When A reacts with NaOH it...

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  6. When heating white lead then find out released gas (A) and (B) under...

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  7. Amorphous boron is extracted from borax by the following steps : "Bo...

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  8. The role of addition of Me(3)SiCl during the hydrolysis followed by co...

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  9. Given type of silicones are called [P] -O-oversetoverset(R)(|)unders...

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  10. Which of the following is not a property of silicones ?

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  11. Tourmalene is a class of cyclosilicates with general formula. (Ca, K...

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  12. The silicate anion in the mineral kinoite is a chain of three SiO(4) t...

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  13. The dehydration of malonic acid CH(2) (COOH)(2) with P(4)O(10) and hea...

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  14. Borax on heating with cobalt oxide forms a blue bead of

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  15. The dissolution of Al(OH)(3) by a solution of NaOH results in the form...

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  16. Select the incorrect statement about the boron.

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  17. Aqueous solution containing 1 mol of borax raects with 2 mol of acids....

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  18. Water transpoted through Lead pipes becomes poisonous due to the forma...

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  19. When a mixture of air and steam is passed over red hot coke, the outgo...

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  20. In BF(3), the B-F bond length is 1.30 A, when BF(3) is allowed to be t...

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