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Silanes are few in number whereas alkane...

Silanes are few in number whereas alkanes are large in number . Explain .

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Carbon has more temndecy for catenation due to high ` C-C` bond strength , hence, it forms a large numerbn of alkances. However , silicon ahs numch less tendecy for catenation as compared to carbon duce to much waker `Si -Si` bondes and hence vety few silans are known .
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CENGAGE CHEMISTRY ENGLISH-P-BLOCK GROUP 14 - CARBON FAMILY-Ex (Subjective)
  1. Why does elemental silicon not form a graphite-like structure, whereas...

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  2. Which of the following elements forms predominantly covalent compounds...

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  3. Cetenation i.e., linking of similar atoms depends on size and electron...

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  4. Give one chemical reaction to show that tin (II) is a reducing agent w...

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  5. Explain, why is CO2 a gas at room temperature but SiO2 is a high melti...

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  6. Give one chemical reaction to show that tin (II) is a reducing agent w...

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  7. Account for the following: C and Si show tetravalency in most of the...

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  8. Tendency to exhibit +2 oxidation state increases with increasing atom...

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  9. Why trimethylamine si pyramidal but trisiluylamine is planar ?

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  10. (CH3)3N acts as a Lewis base , but (SiH3)3 have very little basic char...

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  11. Explain the stability order of CO & SiO & give reason for same .

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  12. PbX2 is more stable than PbX4 (X = CI, Br, I). Account for it.

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  13. Account for the following observations (a) AlCl(3) is a Lewis acid ...

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  14. Give reason : CO is readily absorbed by ammoniacal cuprous chloride,...

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  15. Silanes are few in number whereas alkanes are large in number . Explai...

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  16. Predict whether the following molecules are isostructural or not Justi...

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  17. For a mineral . LiAl (SiO3)2, what is the charge on SiO3 unit ? What...

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  18. A metal M forms two chlorides M Cl2 and MCl4 respectively . In which g...

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  19. An inorganic compound (X) made up of two most occurring elements in ...

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  20. Explain the following : a. Oil paintings trun blackish after sometim...

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