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

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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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The speed of light is __________...?

(A) 280,000 km/s
(B) 300,000 km/s

(C) 320,000 km/s
(D) none of these

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A reaction which is never goes to completion is known as reversible reaction. Reversible reaction is represented by ______...?

(A) Doted lines
(B) Single arrow

(C) Double arrow
(D) Double straight line

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When light passes through prism _____ occurs to form spectrum....?

(A) Refraction
(B) Reflection

(C) Diffraction
(D) None

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Which two organs glands are affected by malaria...?

(A) Lungs and heart
(B) Spleen and liver

(C) Kidneys and lungs
(D) Heart and brain

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The material that comes out of a volcano at the time of eruption is:...?

(A) Solid, liquid, gaseous
(B) Solid and liquid

(C) Solid and gaseous
(D) None of these

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Sunlight is composed of___________...?

(A) Three colours
(B) six colours

(C) seven colours
(D) eight colours

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The artificial manipulation, medication and recombination of DNA ____...?

(A) Genetic engineering
(B) Biotechnology

(C) Molecular Biology
(D) Genetics

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The protein content in wheat is approximately_______________...?

(A) 6%
(B) 9%

(C) 12%
(D) 15%

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Animals with backbone are called...?

(A) Vertebrates
(B) Invertebrates

(C) Both A and B
(D) None

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