Answer the following :
Si is a semiconductor while ‘C’ is a non-metal, why ?

CBSE COMPLEMENTARY MATERIAL-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -5 - MARKS QUESTIONS

1. Which of the following have same chemical properties :

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2. Answer the following : B, Al, Ga (decreasing order of atomic radii)...

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3. Answer the following : C, S, N (decreasing order of (DeltaHeg)1)

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4. Why is Al(2)O(3) amphoteric oxide?

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5. Answer the following : Si is a semiconductor while ‘C’ is a non-meta...

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6. {:("Element",DeltaiH1^(Theta),DeltaiH2^(Theta),"DeltaegH1^0),(I,1681,3...

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