Light Emitting Diode (LED) is a ___ semiconductor device ....? Mcqs

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Light Emitting Diode (LED) is a ___ semiconductor device ....?

(A) 3 lead
(B) 4 lead

(C) 7 lead
(D) 2 lead

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At room temperature most of ionic compounds are ______...?

(A) Amorphous solids
(B) Crystalline solids

(C) Liquids
(D) Gases

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Ombrophobia is fear of____________...?

(A) Rain
(B) Snow

(C) Smog
(D) None of these

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Which is correct order of solar system starting from Sun ...?

(A) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
(B) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus

(C) Mercury, Venus, Mars, Earth, Jupiter, Saturn, Neptune, Uranus
(D) Mercury, Venus, Earth, Jupiter, Mars, Saturn, Uranus, Neptune

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During winter in cold countries, the __________ is mixed to melt the ice on the icy roads....?

(A) Salt
(B) Chlorine

(C) Carbon dioxide
(D) Water

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Which of the following is the flightless bird...?

(A) Pavo cristatus
(B) kakapo

(C) Passer
(D) None of these

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‘ELISA’ test is employed to diagnose...?

(A) Corona virus
(B) AIDS antibodies

(C) Tuberculosis bacterium
(D) Cancer

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Change of state form liquid to solid is _________...?

(A) Boiling
(B) Freezing

(C) Evaporation
(D) None of these

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Where is the Tatnus Taxoid injected...?

(A) Arm
(B) Leg

(C) Abdomen
(D) Buttock

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The earth’s atmosphere is divided into layers based on the vertical profile of __________...?

(A) Air pressure
(B) Air temperature

(C) Air density
(D) Wind speed

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