Top 100 Important Everyday Science Mcqs Set-14 Page 1

Top 100 Important Everyday Science Mcqs Set-14

1- The SI unit of magnetic field strength is:

A. Tesla

B. Weber

C. Henry

D. Gauss

View Answer

Answer : A. Tesla

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2- Which element is used as a moderator in nuclear reactors?

A. Silver

B. Mercury

C. Lead

D. Graphite

View Answer

Answer : D. Graphite

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3- The part of the plant that anchors it to the soil is:

A. Stem

B. Root

C. Leaf

D. Flower

View Answer

Answer : B. Root

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4- The chemical formula of hydrogen sulphide is:

A. HS

B. H₂S

C. H₂SO₄

D. HSO₄

View Answer

Answer : B. H₂S

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5- The largest lake in the world is:

A. Lake Baikal

B. Lake Victoria

C. Caspian Sea

D. Lake Superior

View Answer

Answer : C. Caspian Sea

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6- The process by which plants lose water in the form of vapour is:

A. Evaporation

B. Transpiration

C. Respiration

D. Photosynthesis

View Answer

Answer : B. Transpiration

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7- The chemical formula of magnesium sulphate is:

A. MgSO₄

B. Mg₂SO₄

C. Mg(SO₄)₂

D. Mg₂(SO₄)₃

View Answer

Answer : A. MgSO₄

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8- The part of the human body that produces testosterone is:

A. Adrenal

B. Pituitary

C. Testes

D. Ovaries

View Answer

Answer : C. Testes

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9- The instrument used to measure blood pressure is:

A. Barometer

B. Thermometer

C. Hydrometer

D. Sphygmomanometer

View Answer

Answer : D. Sphygmomanometer

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10- The most abundant noble gas in the atmosphere is:

A. Neon

B. Argon

C. Helium

D. Krypton

View Answer

Answer : B. Argon

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11- The process of converting milk into curd is:

A. Sterilization

B. Fermentation

C. Pasteurization

D. Homogenization

View Answer

Answer : B. Fermentation

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12- The chemical formula of zinc sulphate is:

A. ZnSO₄

B. Zn₂SO₄

C. Zn(SO₄)₂

D. Zn₂(SO₄)₃

View Answer

Answer : A. ZnSO₄

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13- The largest island in the world is:

A. Greenland

B. Madagascar

C. Borneo

D. New Guinea

View Answer

Answer : A. Greenland

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14- The hormone that stimulates milk production is:

A. Prolactin

B. Oxytocin

C. Estrogen

D. Progesterone

View Answer

Answer : A. Prolactin

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15- The process of converting a gas into a plasma is:

A. Excitation

B. Deionization

C. Ionization

D. Recombination

View Answer

Answer : C. Ionization

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16- The chemical formula of lead nitrate is:

A. PbNO₃

B. Pb₂NO₃

C. Pb(NO₃)₂

D. Pb(NO₃)₃

View Answer

Answer : C. Pb(NO₃)₂

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17- The part of the human eye that contains the photoreceptors is:

A. Iris

B. Lens

C. Retina

D. Cornea

View Answer

Answer : C. Retina

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18- The instrument used to measure the sugar content of a solution is:

A. Photometer

B. Polarimeter

C. Refractometer

D. Saccharimeter

View Answer

Answer : D. Saccharimeter

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19- The most abundant element in the Earth's oceans is:

A. Sodium

B. Chlorine

C. Oxygen

D. Hydrogen

View Answer

Answer : C. Oxygen

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20- The process of converting glucose into lactic acid is:

A. Fermentation

B. Photosynthesis

C. Aerobic respiration

D. Anaerobic respiration

View Answer

Answer : D. Anaerobic respiration

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