The sky appears blue because the earth’s atmosphere __________...? Mcqs

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The sky appears blue because the earth’s atmosphere __________...?

(A) Scatters blue light
(B) Reflects blue light

(C) Transmits blue light
(D) Has actual blue cover

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The Earth takes ______ to revolve around the sun....?

(A) 365 days and 4 hours
(B) 365 days and 6 hours

(C) 365 days and 8 hours
(D) 365 days and 10 hours

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The book “Kitab-ul-manazir” was written by ______...?

(A) Jabir bin Hayan
(B) Ibn-al-Haitham

(C) Ali Ibn-Isa
(D) Bu-Ali Sina

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The soul of chemistry is dealing with___________...?

(A) Internal structural changes in matter
(B) Composition of matter

(C) Properties of matter
(D) Composition and properties of matter

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When the magnitude of Kc is small, indicates ______...?

(A) Reaction mixture contain most of the reactant
(B) Reaction mixture contain most of the product

(C) Reaction mixture contain almost equal amount of reactant and product
(D) Reaction goes to completion

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Diamond is harder than Graphite because of___________...?

(A) Difference in crystalline Structure
(B) Tetrahedral structure of diamond

(C) Difference in layer of atoms
(D) None of these

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Which planet of our solar system is name after a female...?

(A) Uranus
(B) Saturn

(C) Venus
(D) Mercury

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The condition for the validity of Ohm's law is that the ______...?

(A) Temperature should remain constant
(B) Current should be proportional to voltage

(C) Resistance must be wire wound type
(D) All of the above

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Which statement is incorrect about gas molecules...?

(A) Molecules are widely separated
(B) Molecules have low attractive forces

(C) Molecules free to move in any direction
(D) Molecules collide with one another

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The exact duplication of DNA is called ______...?

(A) Duplication
(B) Replication

(C) Transcription
(D) Translation

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