Which is used to remove dissolved physical and chemical impurities from water is called ____...? Mcqs

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Which is used to remove dissolved physical and chemical impurities from water is called ____...?

(A) Distillation
(B) Chlorination

(C) Filtration
(D) Sedimentation

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By which process copper is refined ____________...?

(A) Roasting
(B) Oxidation

(C) Zone Refining
(D) Electrolysis

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What is bacteria that helps make yogurt ...?

(A) Escherichia Coli
(B) Staphylococcus aureus

(C) Lactobacillus
(D) All of these.

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Why does cytosine not form a bond with adenine...?

(A) Cytosine is unable to form hydrogen bonds with adenine.
(B) Adenine and cytosine have incompatible hydrogen bond donors and acceptors.

(C) Cytosine only pairs with thymine due to their complementary structures.
(D) Adenine is a pyrimidine and cannot bond with cytosine.

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Which of the following animal has blue blood...?

(A) Snail
(B) Octopus

(C) Spider
(D) All of above

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

(A) 80°C
(B) 90°C

(C) 100°C
(D) 10°C

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Which of the following regulates the Metabolism Of Sugar...?

(A) Thyroid
(B) Insulin

(C) Glucose
(D) None of These

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Amount of pressure of liquid increases with increase of _____...?

(A) Depth
(B) Volume

(C) Temperature
(D) Surface tension

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Boiling point of pure water is __________...?

(A) 90’C
(B) 97’C

(C) 100’C
(D) None of these

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Solar energy is radiated in the form of...?

(A) Transverse wave
(B) Electromagnetic waves

(C) Infrared wave
(D) None of these

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