An egg sinks in soft water but floats in a concentrated solution of salt because...? Mcqs

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An egg sinks in soft water but floats in a concentrated solution of salt because...?

(A) egg absorbs salt from the solution and expands
(B) albumin dissolves in salt solution and egg becomes lighter

(C) the density of salt solution exceeds the density of eggs
(D) water has high surface tension

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Numerical value of ______ remains constant every where....?

(A) g
(B) G

(C) F
(D) W

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“Green House Effect” means:____________...?

(A) Pollution
(B) Prevention of ultraviolet rays

(C) Trapping of Solar energy due to atmospheric carbon dioxide
(D) D. None

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Which planet takes 4332 days to complete one revolution...?

(A) Earth
(B) Mars

(C) Jupiter
(D) Mercury

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Which part of the human body contains the most gold...?

(A) Liver
(B) Skin

(C) Toenails
(D) Kidney

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The outermost layer of the Earth is called ____________...?

(A) Crust
(B) Mental

(C) Core
(D) None of these

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Which statement about the fluid mosaic model of membrane structure is correct...?

(A) The lower the temperature, more fluid nature
(B) Higher the temperature, less fluid nature

(C) The more unsaturated the fatty acid, the more fluid nature
(D) The less unsaturated the fatty acid, the more fluid nature

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An adult have permanent teeth...?

(A) 30
(B) 40

(C) 50
(D) 32

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When the angle of refraction is 90° and the refractive index for water is 1. 33, the critical angle is ______...?

(A) 48.8°
(B) 50.0°

(C) 49.1°
(D) 51.0°

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Which of the following gas diffuses fastest...?

(A) Hydrogen
(B) Chlorine

(C) Fluorine
(D) Helium

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