Which is the oldest freezing method:...? Mcqs

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Which is the oldest freezing method:...?

(A) Contact freezing
(B) Flash freezing

(C) Brine freezing
(D) None of these

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Latest MCQs

Which is used as an electrode in the dry cell:...?

(A) Lead
(B) Graphite

(C) Molybdenum
(D) None of these

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Latest MCQs

Which of the following is the least polluted gas...?

(A) Carbon
(B) Nitrogen

(C) Chlorine
(D) None of these

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Latest MCQs

Which gas is used to make soda water...?

(A) Ammonia
(B) Hydrogen

(C) Nitrogen
(D) Carbon Dioxide

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Latest MCQs

Which is the hardest among following...?

(A) Radium
(B) Diamond

(C) Graphite
(D) Gold

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Latest MCQs

Composition of Alchemy is written by...?

(A) Ibn Al Haithem
(B) Jabir Bin Hayan

(C) Ibn Rushd
(D) Nasir Al Din

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Acid rain contains high levels of _____...?

(A) Sulphuric Acid
(B) Nitric Acid

(C) Oxalic Acid
(D) Both A and B

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Which of the following has the maximum density...?

(A) Water
(B) Ice

(C) Benzene
(D) Chloroform

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Which metal is found in liquid state at room temperature?...?

(A) Iron
(B) Zinc

(C) Aluminum
(D) Mercury

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Chemical formula of baking soda is ______...?

(A) Na2CO3
(B) K2CIO3

(C) Na2SO4
(D) NaHCO3

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