Which base is employed as the electrolyte in alkaline batteries:...? Mcqs

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Which base is employed as the electrolyte in alkaline batteries:...?

(A) Calcium hydroxide
(B) Potassium hydroxide

(C) Iron hydroxide
(D) Aluminum hydroxide

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Which of the following are the primary colors of light...?

(A) Red, Green & Blue
(B) Blue, Red & Orange

(C) Yellow, Red & Green
(D) None of these

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Sulphur and Nitrogen cause _____...?

(A) Greenhouse Effect
(B) Ozone Layer Depletion

(C) Acid Rain
(D) None of these

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The inner core of an optical fiber is __________ in composition...?

(A) Glass or plastic
(B) Copper

(C) Bimetallic
(D) Liquid

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Which of the following is the lightest metal:...?

(A) Mercury
(B) Silver

(C) Lead
(D) Lithium

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Which instrument is used to measure altitude..?

(A) Audiometer
(B) Altimeter

(C) Barometer
(D) Anemometer

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The brightest planet in the solar system is...?

(A) Satrun
(B) Venus

(C) Neptune
(D) Mars

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What is the boiling point of water...?

(A) 60 °C
(B) 80 °C

(C) 100 °C
(D) 120 °C

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The nonrenewable source of energy is:...?

(A) Wind energy
(B) Solar energy

(C) Hydropower
(D) None of these

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Nuclear energy when expanded converts...?

(A) Proton into neurons
(B) Chemical into heat

(C) Nuclear into thermal
(D) None of these

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