The total energy of revolving electron in an atom_____________...? Mcqs

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The total energy of revolving electron in an atom_____________...?

(A) Will always be positive
(B) Can never be positive

(C) Can have any value above zero
(D) Cannot be negative

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Respiratory surface possesses following property...?

(A) Thin and wet
(B) Permeable

(C) Very large
(D) All of these

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How many teeth does a dog have...?

(A) 42
(B) 45

(C) 46
(D) 47

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Which of the following disease is spread by Fleas...?

(A) Small pox
(B) Tetnus

(C) Typhus
(D) Yellow fever

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Oil rises up to wick in a lamp because_____________...?

(A) Oil is very light
(B) Oil is volatile

(C) Diffusion of oil through the wick
(D) Capillary action phenomenon

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Angle of friction and angle of repose are...?

(A) equal to each other
(B) not equal to each other

(C) proportional to each other
(D) None of these

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Which gas does a Photocopier machine produce...?

(A) Ozone
(B) carbon dioxide

(C) Sulfur dioxide
(D) None of these

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Orbital period of the planet Mercury around the sun is _____________...?

(A) 88 days
(B) 365 days

(C) 2 years
(D) 98 days

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The natural source of hydrocarbon is:___________...?

(A) Crude oil
(B) Biomass

(C) Coal
(D) Carbohydrates

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If order and corresponding element of the matrices are same then matrices are said to be...?

(A) scalar
(B) diagonal

(C) equal
(D) rectangular

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