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Explain the following reactions (a) Si...

Explain the following reactions
(a) Silicon is heated with methyl chloride at high temperature in the presence of copper,
(b) Silicon dioxide is treated with hydrogen fluoride,
(c) CO is heated with ZnO,
(d) Hydrated alumina is treated with aqueous NaOH solution.

Text Solution

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When silicon is heated with methyl chloride at high temperature in the presence of copper, a mixture of mono, di- and trimethylchlorosilanes along with a small amount of tetramethylsilane is obtained.
`CH_3 Cl + Si underset(573 K)overset("Cu powder")to CH_3 SiCl_3 + (CH_3)_2 SiCl_2 + (CH_3)_3 SiCl + (CH_3)_4 Si`
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ICSE-SOME P-BLOCK ELEMENTS -NCERT TEXTBOOK EXERCISES (With Hints and Solutions)
  1. What happens when Aluminium is treated with dilute NaOH .

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  2. What happens when BF3 is reacted with ammonia?

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  3. Explain the following reactions (a) Silicon is heated with methyl ch...

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  4. Explain the phenomena of itching of glass

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  5. Explain the following reaction : CO is heated with ZnO

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  6. Explain the following reactions (a) Silicon is heated with methyl ch...

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  7. Explain why : Conc. nitric acid can be stored in aluminium containe...

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  8. Give reasons A mixture of dilute NaOH and aluminium pieces is used t...

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  9. Give reasons Graphite is used as lubricant.

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  10. Give reasons Diamond is used as an abrasive.

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  11. Give reasons Aluminium alloys are used to make aircraft body.

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  12. Give reasons Aluminium utensils should not be kept in water overnig...

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  13. Give reasons for the following: Aluminium is used in transmission wire...

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  14. Explain why is there a phenomenal decrease in ionization enthalpy from...

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  15. The reason behind the lower atomic radius of Ga as compared to Al is

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  16. What are allotropes? Sketch the structure of two allotropes of carbon ...

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  17. Classify following oxides as neutral, acidic, basic or amphoteric: ...

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  18. Write suitable chemical equations to show the nature of Calcium oxide ...

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  19. In some of the reactions thallium resembles aluminium, whereas in othe...

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  20. When metal X is treated with sodium hydroxide, a white precipitate (A)...

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