Milk has pH:e:...? Mcqs

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Milk has pH:e:...?

(A) 6.5
(B) 7.5

(C) 8.5
(D) 9.5

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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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What is called laughing gas...?

(A) Nitrous Oxide
(B) Nitric Oxide

(C) Nitrogen Oxide
(D) Nitrogen Peroxide

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Examples of magnetic materials are_______...?

(A) Iron, Nickel and Cobalt
(B) Gold, Aluminum and Copper

(C) Earth
(D) All of these

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The freezing point of water on a centigrade scale is...?

(A) 0°C
(B) 1°C

(C) -1°C
(D) 5°C

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Which Muslim Scientist is considered to be the founder of chemistry...?

(A) Ibn Al Nafees
(B) Jabir ibn Hayyan

(C) Abu Nasr Al-Farabi
(D) None of these

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It is not advisable to sleep under a tree at night because of the release of:...?

(A) more oxygen
(B) less oxygen

(C) Carbon dioxide
(D) Carbon monoxide

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Nitrogen boils at a temperature of:...?

(A) -96 °C
(B) -196 °C

(C) -296 °C
(D) -310 °C

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Solid can be converted directly to the gaseous state. This process is known as:...?

(A) Sublimation
(B) Evaporation

(C) Condensation
(D) Diffusion

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Which one of the following is a metal...?

(A) Gypsum
(B) Mercury

(C) Limestone
(D) Granite

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