Stars are huge balls of gas mainly consist of _______ and ________...? Mcqs

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Stars are huge balls of gas mainly consist of _______ and ________...?

(A) Oxygen, Nitrogen
(B) Helium, Oxygen

(C) Hydrogen, Helium
(D) Nitrogen, Carbon

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All forms of energy that we use are ultimately transformed into__________...?

(A) Electrical Energy
(B) Heat Energy

(C) Light Energy
(D) Chemical Energy

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A substance which produces hydroxyl ion (OH)- in the aqueous solution is called...?

(A) Oxidizing agent
(B) Reducing agent

(C) Base
(D) Acid

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Spectroscopy is the interaction of light with ______...?

(A) Liquid
(B) Solid

(C) Gas
(D) Matter

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Which one of the following is strong acid...?

(A) HF
(B) HCl

(C) HBr
(D) HI

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Steering of a car involves...?

(A) A single force
(B) Two forces acting in the same direction

(C) Two forces acting along different lines and in opposite direction.
(D) A pair of forces acting along the same line and in opposite direction

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Solid wastes that are easily decompose by decomposers are called...?

(A) Biodegradable
(B) Non-biodegradable

(C) Both A and B
(D) None

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The diagnosis of anthrax in cattle may be made by__________...?

(A) Spore staining
(B) Quellung reaction.

(C) Mcyfaydean reaction
(D) None of the above

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The number shown above the symbol of element is called...?

(A) Mass Number
(B) Valency

(C) Atomic Number
(D) Oxidation State

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The ozone layer is at height of________kilometers from the surface of the Earth...?

(A) 10 to 20
(B) 20 to 30

(C) 30 to 40
(D) 40 to 50

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