Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________...? Mcqs

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Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________...?

(A) ionic substances
(B) metallic substances

(C) molecular solids
(D) covalent network solids

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What happens to the molecules of a gas when the gas changes into a liquid...?

(A) They move closer and lose energy
(B) They move closer and gain energy

(C) They move apart and lose energy
(D) They move apart and gain energy

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A powder contains 100mg of a radioactive material that emits α-particles. (See in detail)...?

(A) 0mg
(B) 25mg

(C) 50mg
(D) 75mg

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Composition of Ozone layer...?

(A) O1
(B) O2

(C) O3
(D) O4

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Extra circular DNA which use as vector of gene is ____...?

(A) Genome
(B) Plasmid

(C) Pilli
(D) Ligase

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Earth rotates the sun in___________...?

(A) 23 hours 56 min 4 sec
(B) 24 hours

(C) 23 hours 57 min 9 sec
(D) Non of above

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The elements of VIIA group are known as ______...?

(A) Lanthanides
(B) Actinides

(C) Halogens
(D) Nobel Gases

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What is the body’s natural or acquired ability to resist certain diseases...?

(A) Immunity
(B) Endocrine

(C) Exocrine
(D) All of above

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A body can escape the gravitational pull of the earth if it is thrown up with a velocity of...?

(A) 25 miles per sec
(B) 60 miles per sec

(C) 7 miles per sec
(D) 10 miles per sec

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Fats are solids at ______...?

(A) Ordinary room temperature
(B) High temperature

(C) Higher than 50°C temperature
(D) N.O.T

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