Tendency of atoms to acquire eight electrons in their valence shell is ______...? Mcqs

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Tendency of atoms to acquire eight electrons in their valence shell is ______...?

(A) Octet rule
(B) Duplet rule

(C) Triplet rule
(D) None of above

Latest MCQs

Which of the following explains the reason why there is no total eclipse of the sun...?

(A) Size of the earth in relation to that of moon
(B) Orbit of moon around earth

(C) Direction of rotation of earth around sun
(D) Area of the sun covered by the moon

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Which of the following planets is fastest rotating planet...?

(A) Mercury
(B) Marx

(C) Jupiter
(D) Venus

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The splitting of a heavy nucleus into smaller nuclei is called...?

(A) Fusion
(B) Fission

(C) Half-life
(D) Gamma decay

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A fathom is equal to ________feets...?

(A) 6
(B) 5

(C) 4
(D) 3

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Which of the following chemicals is not found in tobacco smoke...?

(A) Chlorine bleach
(B) Rocket fuel

(C) Nail polish remover
(D) Barbecue lighter fluid

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When sound travels through air, the air particles _____...?

(A) Vibrate along the direction of wave propagation
(B) Vibrate perpendicular to the direction of wave propagation

(C) Vibrate but not in any fixed direction
(D) Vibrate and move in a straight line

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Which of the following is an example of wheel and axle...?

(A) Car Steering
(B) Knife

(C) Seesaw
(D) Bottle opener

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A substance that can donate a pair of electron to form coordinate covalent bond...?

(A) Lewis acid
(B) Lewis base

(C) Bronsted—Lowery acid
(D) Bronsted-Lowery base

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Which statement is incorrect about chemical reactions...?

(A) States of matter does not change during chemical reactions
(B) Chemical reactions produce new substances

(C) Chemical reactions occur with the absorption or emission of energy
(D) Chemical reactions may be fast, moderate or slow

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