What happens when water solidifies as ice on cooling from 4°C to 0°C...? Mcqs

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What happens when water solidifies as ice on cooling from 4°C to 0°C...?

(A) Its volume increases and density decreases
(B) Its volume increases and density increases

(C) Its volume decreases and density decreases
(D) Its volume decreases and density increases

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One calorie is equal to how many joules...?

(A) 4184 joules
(B) 4285 joules

(C) 4286 joules
(D) 4185 joules

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Examples of Monosaccharides are ___________....?

(A) Glucose
(B) Galactose

(C) Fructose
(D) All of these

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Air contains maximum amount of__________...?

(A) oxygen
(B) nitrogen

(C) hydrogen
(D) carbon dioxide

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1 g equivalent weight of Aluminum is equal to ____...?

(A) 9 g
(B) 27 g

(C) 54 g
(D) 1 g

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The melting point of ice at normal atmospheric pressure is ______...?

(A) 0 °C
(B) 0 K

(C) 100 °C
(D) Both 'a' and 'b'

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Water is 50 times more viscous than ____________ ...?

(A) Oil
(B) Alcohol

(C) Gases
(D) Solid

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Field of research that examines mathematical representations of biological system called _____...?

(A) Ratio
(B) Mathematical biology

(C) Proportion
(D) Law

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Which of the following allows all light to pass through it...?

(A) Book
(B) Air

(C) Wood
(D) Newspaper

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Recently, scientists observed the merger of giant ‘blackholes’ billions of light-years away from the Earth. What is the significance of this observation...?

(A) ‘Higgs boson particles’ were detected.
(B) Gravitational waves’ were detected.

(C) Possibility of inter-galactic space travel through ‘wormhole’ was confirmed.
(D) It enabled the scientists to understand ‘singularity’.

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