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The laptop PC’s modern electronic watche...

The laptop PC’s modern electronic watches and calculators use the following for display

A

Single crystal

B

Poly crystal

C

Liquid crystal

D

Semiconductors

Text Solution

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The correct Answer is:
C
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According to hybridisation theory, the % s-character in sp, sp^(2) and sp^(3) hybrid orbitals is 50, 33.3 and 25 respectively, but this is not true for all the species. When theta is the bond angle between equivalent hybrid orbitals then % s and p-character in hybrid orbitals (when only s and p-orbitals are involved in hybridisation) can be calculated by the following formula : costheta=(S)/(S-1)=(P-1)/(P) Q. Correct order of P-P bond length in the following compound is :

According to hybridisation theory, the % s-character in sp, sp^(2) and sp^(3) hybrid orbitals is 50, 33.3 and 25 respectively, but this is not true for all the species. When theta is the bond angle between equivalent hybrid orbitals then % s and p-character in hybrid orbitals (when only s and p-orbitals are involved in hybridisation) can be calculated by the following formula : costheta=(S)/(S-1)=(P-1)/(P) Q. Smallest Ohat(S)O bond angle is found in :

ERRORLESS -ELECTRONICS-Selv Evaluation Test
  1. The laptop PC’s modern electronic watches and calculators use the foll...

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  2. In a pure silicon (n(i)=10^(16)//m^(3)) crystal at 300K, 10^(21) atoms...

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  3. In the Boolean algebra bar(A).bar(B) equals is :-

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  4. In the given circuit as shown the two input waveform A and B are appli...

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  5. Two identical capacitors A and B are charged to the same potential V a...

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  6. In transistor, forward bias is always smaller than the reverse bias. T...

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  7. In NPN transistor, if doping in base region is increased then collecto...

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  8. In the following circuit I(1) and I(2) are respectively

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  9. In space charge limited region, the plate current in a diode is 10 mA ...

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  10. A triode has a plate resistance of 10 k Omega and amplification factor...

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  11. Pure sodium (Na) is a good conductor of electricity because the 3s and...

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  12. Would there be any advantage to adding n-type or p-type impurities to ...

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  13. In the following common emitter circuit if beta=100, V(CE)=7 V, V(BE)=...

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  14. When a battery is connected to a P-type semiconductor with a metallic ...

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  15. Is the ionisation energy of an isolated free atom different from the i...

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  16. In the following circuit, a voltmeter V is connected across a lamp L. ...

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  17. For given electric voltage signal dc value is

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  18. When a silicon PN junction is in forwards biased condition with series...

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  19. In the following circuit the equivalent resistance between A and B is

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  20. In the following circuit of PN junction diodes D(1),D(2) and D(3) are ...

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  21. In circuit in following figure the value of Y is-

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