Silicon is an example of _________...? Mcqs

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Silicon is an example of _________...?

(A) No-conductor
(B) Semiconductor

(C) Super Conductor
(D) None of these

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Human blood is divided into _____ main groups....?

(A) 4
(B) 2

(C) 3
(D) 1

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The process of vaporizing a solid substance and condensing the vapours to form the solid directly is known as...?

(A) Distillation
(B) Sublimation

(C) Filtration
(D) Crystallization

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1 Coulomb = ___________ e....?

(A) 6×10-19
(B) 6.25×1018

(C) 1.6×1019
(D) 6.25×10-18

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_______ is the average distance between the Earth and the sun ...?

(A) Moon unit
(B) Light unit

(C) Astronomical unit
(D) Solar unit

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Rusting of Iron involves_______________...?

(A) Reduction
(B) Oxidation

(C) Decomposition
(D) Displacement

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The most abundant element in human body is __________...?

(A) Hydrogen
(B) Blood

(C) Oxygen
(D) Protein

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Crude Oil is heated in the furnace up to _________...?

(A) 300°C
(B) 350°C

(C) 400°C
(D) 450°C

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In the absence of sunlight, the entire food chain would become...?

(A) Active and Thrive
(B) Unaffected and Stable

(C) Slow but Survive
(D) Inactive and Collapse

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Most drugs are excreted through_____________...?

(A) Kidney
(B) Skin

(C) Gallbladder
(D) Lungs

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