Soap is prepared by boiling caustic soda with ___________...? Mcqs

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Soap is prepared by boiling caustic soda with ___________...?

(A) Alcohol
(B) Kerosene oil

(C) Glycerine
(D) Fats

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Sound travels fastest in _______...?

(A) Air
(B) Water

(C) Diamond
(D) Steel

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A human baby is similar to human beings. The property due to which similar characteristics are transformed from the parents to their young once is termed as...?

(A) Genes
(B) Heredity

(C) Adaptation
(D) None

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Mobile Phone Convert sound into ______...?

(A) Sound wave
(B) U/V waves

(C) Microwaves
(D) Radio waves

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The increasing vapor pressure caused by heating a liquid is due to___________...?

(A) increase inter-molecular interactions
(B) increasing potential energy of molecules

(C) increasing kinetic energy of molecules
(D) decreasing surface tension

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Pollutants that are introduced into the environment by human activity are called as ___________...?

(A) Qualitative pollutants
(B) Quantitative pollutants

(C) Anthropogenic pollutant
(D) All of Above

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The S. I. unit of refractive index is _______...?

(A) meter
(B) cm

(C) watt
(D) no unit

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What is unit of conductivity...?

(A) Ohm
(B) Watt

(C) mho
(D) None of these

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Ozone layer thickness is measured in____________...?

(A) Metre
(B) Joule

(C) Pounds
(D) Dobson

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Which liquid is used in an aneroid barometer...?

(A) Mercury
(B) Alcohol

(C) Water
(D) None

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