Which one of the following represents a chemical change_________...? Mcqs

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Which one of the following represents a chemical change_________...?

(A) Sublimation of iodine
(B) Heating a platinum wire in a Bunsen flame

(C) Heating of mercuric oxide powder
(D) Evaporation of alcohol

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The female gametes are fertilized in the rear end of _____...?

(A) Oviduct
(B) Fallopin tube

(C) Ovaries
(D) Both a and b

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Animals are classified into how many main groups...?

(A) 2
(B) 4

(C) 5
(D) 6

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The beautiful color patterns exhibited by a peacock in its tail feathers are due to ...?

(A) Selective absorption of light
(B) Selective re ection of light

(C) Sinterference of light
(D) Natural colour pattern of feathers

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During which process does heat transfer occur because of density differences__________...?

(A) Convection
(B) Radiation

(C) Conduction
(D) None of these

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What are the three subatomic particles of an atom...?

(A) Protons,Neutrons & Electrons
(B) Protons,Nucleus & Electrons

(C) Protons,Nucleus & Elements.
(D) Elements,Nucleus & Protons

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Which of the gas is not known as green house gas...?

(A) Methane
(B) Nitrous oxide

(C) Carbon dioxide
(D) Hydrogen

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Selective reabsorption in nephron takes place at ______...?

(A) Glomerulus
(B) Malpighian body

(C) Convulated tubules
(D) Loop of Henle's

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Which are the only two elements on the periodic table that are liquid at room temperature...?

(A) Mercury and Bromine
(B) Carbon and helium

(C) Nitrogen and Hydrogen
(D) Oxygen and Neon

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Who gave the theory of Evolution By Natural Selection...?

(A) Edward Teller
(B) Charles Darwin

(C) Charlas Babbage
(D) Einstein

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