Which of the following can be separated by physical means...? Mcqs

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Which of the following can be separated by physical means...?

(A) Mixture
(B) Element

(C) Compound
(D) Substance

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Yeast is an example of...?

(A) Bacteria
(B) Fungi

(C) Algae
(D) Virus

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The primary function of the feathers in birds is to _________...?

(A) Provide insulation for preserving body heat
(B) Provide striking surface to the wings for flying

(C) Make the body surface waterproof
(D) impart coloration for species as well as sex recognition

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Stomach stores the ___________...?

(A) enzime
(B) Food

(C) hcl
(D) None of These

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For burning, which agent is necessary...?

(A) Oxygen
(B) Hydrogen

(C) Carbon
(D) Fire

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In which of the following, the speed of sound is minimum...?

(A) Brick
(B) Air

(C) Lead
(D) Copper

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The unit of Kc for reaction N2 + O2 ⇌ 2NO...?

(A) mol dm^-3
(B) mol^-2 dm^6

(C) mol^-1dm3
(D) No unit

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Sound travels about ___________times faster in water than in air....?

(A) 2
(B) 3

(C) 4
(D) 5

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A type of sample machine which is used to move heavy objects up or down over a vertical Height is known as...?

(A) Inclined plane
(B) Layer

(C) Wedge
(D) Fulcrum

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The chemical name of bauxite _______ ...?

(A) Aluminium Oxide
(B) Aluminium Chloride

(C) Aluminium Sulphite
(D) None of the above

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