Ruby is an oxide of__________...? Mcqs

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Ruby is an oxide of__________...?

(A) silver
(B) gold

(C) platinum
(D) aluminium oxide

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A (an) ________ is the smallest possible particle of an element that can combine to form new compounds....?

(A) Molecule
(B) Atom

(C) Compound
(D) Element

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Atoms which lose electrons will become positively charged ion and they are known as...?

(A) Anions
(B) Ions

(C) Cations
(D) Isotopes

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A force of 15 N makes an angle of 60° with horizontal. Its vertical component will be ____...?

(A) 15 N
(B) 10 N

(C) 13 N
(D) 7 N

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Leprosy is the oldest disease in the world caused by which microorganism...?

(A) Virus
(B) Fungi

(C) Bacteria
(D) None

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The earth revolves around the sun at a speed of__________...?

(A) 18.5 km/sec
(B) 26.6 km/sec

(C) 29 km/sec
(D) 31.9 km/sec

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Atom is made up of____________different kinds of subatomic particles:...?

(A) Three
(B) Two

(C) Four
(D) None

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Bones Ash contain...?

(A) calcium sulphate
(B) phosphoric sulphate

(C) Calcium sulphate
(D) None of these

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The moon’s surface is constantly bombarded by...?

(A) Comets
(B) UV light

(C) Meteoroids
(D) All of the above

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When a warm air is lifted off the surface in temperature depression it is called ________...?

(A) An occlusion
(B) A cold front

(C) An anticyclone
(D) A warm front

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