The cracking sound heard when dry hair is combed with a hard rubber comb is due to_________...? Mcqs

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The cracking sound heard when dry hair is combed with a hard rubber comb is due to_________...?

(A) The hair barging against the charged comb
(B) Small electric sparks

(C) The rubbing of the comb with the hair
(D) None of the above

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Diamond is a very expensive ornament. It is composed of a single element ___________...?

(A) Carbon
(B) Gold

(C) Silver
(D) Platinum

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The Sun has temperature of around 6,000 °C and glows ____...?

(A) Red
(B) Blue

(C) Green
(D) Orange/Yellow

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Solar panels contain Solar Cell which are called ____...?

(A) Photo-voltaic cells
(B) photo - electric cells

(C) photo- septic cell
(D) None

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Enzymes are ______...?

(A) Steroid in nature
(B) Protein in nature

(C) Lipid in nature
(D) Carbohydrate in nature

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Which of the following is the form of marble...?

(A) Onyx
(B) Carrara

(C) Calacatta
(D) All of these

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Which of the following is not a solid sublime material...?

(A) Glucose
(B) Sodium Chloride

(C) Iodine
(D) Camphor

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Pregnancy time period of “mice” is ___________...?

(A) 2 weeks
(B) 2.5 weeks

(C) 3 weeks
(D) 4 weeks

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Which substance has a pH value closest to neutral...?

(A) Ammonia
(B) Blood

(C) Milk
(D) Organic juice

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What is the direction of the magnetic field lines inside a bar magnet...?

(A) From north pole to south pole
(B) South pole to north pole

(C) From side to side
(D) There are no magnetic field lines

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