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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Kilowatt-hour is a unit of____________...?

(A) Power
(B) Electric Current

(C) Energy
(D) Time

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Mobile Phone Convert sound into ______...?

(A) Sound wave
(B) U/V waves

(C) Microwaves
(D) Radio waves

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Which of the following is solid...?

(A) Water
(B) Stone

(C) Both
(D) None

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A nuclear reactor is a device used to carry out controlled nuclear reaction whereas GM counter is a device used to detect...?

(A) Current
(B) Voltage

(C) Nuclear Radiation
(D) power

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In plants, the cell wall is composed mainly of strong fibers of ____...?

(A) Cellulose
(B) Starch

(C) Proteins
(D) Lipids

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The moon's surface is also covered with a layer of fine dust called...?

(A) Regolith
(B) Gegolith

(C) Megolith
(D) Pegolith

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Which variety of glass is heat resistant...?

(A) Bottle glass
(B) Flint glass

(C) Hard glass
(D) Pyrex glass

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How many Dynes are there in one gram weight...?

(A) 993
(B) 981

(C) 250
(D) 375

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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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