Diamond is harder than Graphite because of___________...? Mcqs

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Diamond is harder than Graphite because of___________...?

(A) Difference in crystalline Structure
(B) Tetrahedral structure of diamond

(C) Difference in layer of atoms
(D) None of these

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The additional circular small piece of DNA in bacterial cell is called ____...?

(A) Plasmids
(B) Replica

(C) Template
(D) Clone

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Parses is a unit used to measure: __________...?

(A) Distance
(B) Time

(C) Speed
(D) Force

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The cooling fins at the back of refrigerator are made of black and rough surface because ____...?

(A) They are good conductors of heat
(B) They are good radiators of heat

(C) They are good insulators of heat
(D) They are not important for heat transfer

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Transistors do not need a warm up period because they have no ...?

(A) Plate
(B) Grid

(C) Filament
(D) None of above

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Human beings use _______ liters of pure oxygen per day....?

(A) 550
(B) 2500

(C) 1,050
(D) 10,000

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Stage of meiosis in which centromeres shorten and the paired chromatids are pulled away from one another...?

(A) Anaphase-II
(B) Metaphase-II

(C) Telophase-II
(D) Prophase-II

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The sun completes one full rotation at its equator in how many days...?

(A) 365 days
(B) 30 days

(C) 25 days
(D) 23 days

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With the rise in temperature, metals conductivity____________...?

(A) Remains same
(B) Increases

(C) Decreases
(D) None of these

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Which one of the following is also known as shooting stars...?

(A) Asteroids
(B) Comets

(C) Black Holes
(D) Meteoroids

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