PVC is obtained by the polymerisation of...? Mcqs

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PVC is obtained by the polymerisation of...?

(A) Propane
(B) Vinyl chloride

(C) Styrene
(D) None of these

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Gas can be converted into liquid by...?

(A) Cooling
(B) Heating

(C) Both A and B
(D) None

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What is the main component/constituent of the cell wall that supports the plant cell and gives it a regular shape...?

(A) Protein
(B) Starch

(C) Lipid
(D) Cellulose

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Which of the following gas mainly responsible for ozone layer depletion...?

(A) Chlorofluorocarbon
(B) CO2

(C) Nitrogen oxide
(D) Sulphur dioxide

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Transportation of water takes place through continuous tubes in roots, stem and leaves are called as...?

(A) Xylem
(B) Phloem

(C) Stomata
(D) Cambium

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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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The most suitable thermometer for measuring boiling point of water is ...?

(A) Mercury Thermometer
(B) Liquid crystal thermometer

(C) Bimetallic thermometer
(D) Alcohol thermometer

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The carboxylate end of the soap molecule that is attracted to water is called...?

(A) Hydrophobic end
(B) End point

(C) Hydrophilic end
(D) None

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Which organelle contains thread-like structures that store chemical instructions for cell growth and function...?

(A) Mitochondria
(B) Ribosomes

(C) Chromosomes
(D) Lysosomes

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Which of the following constituents of pollutant exhaust in hazardous to man...?

(A) Carbon monoxide
(B) Carbon dioxide

(C) Lease particles
(D) Carbon particles

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