Pressure in gases is due to _____...? Mcqs

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Pressure in gases is due to _____...?

(A) Collision of molecules with walls of containers
(B) Vibration of molecules

(C) Rotation of molecules
(D) Electromagnetic attraction between molecules

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When the ray of lights strikes on the brick wall, it is...?

(A) Passed through it
(B) Scattered by it

(C) Reflected by it
(D) None

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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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The solubility of a solute substance increases _____...?

(A) As the liquid cools down
(B) As the liquid becomes more concentrated

(C) As the liquid heats up
(D) As the liquid becomes more diluted

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What are the directions of a magnetic bar...?

(A) North, South, East, West
(B) Up, Down, Left, Right

(C) Positive, Negative, Neutral
(D) North, South

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Which one of the following is also known as shooting stars...?

(A) Asteroids
(B) Comets

(C) Black Holes
(D) Meteoroids

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Fan was invented by___________...?

(A) Arthur Schimit
(B) Alfered Nobel

(C) Skaats Wheeler
(D) None of these

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The pH scale is a measure of the acidity or alkalinity of a solution, and it ranges between ____...?

(A) 1 - 10
(B) 1 - 14

(C) 5 - 15
(D) 0 - 12

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The part of an eye acting as a black point of camera is ______...?

(A) Sclera
(B) Retina

(C) Optic disc
(D) Choroid

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When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is _________...?

(A) Visible
(B) Transparent

(C) Invisible
(D) opaque

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