Top 100 Important Everyday Science Mcqs Set-12 Page 2

Top 100 Important Everyday Science Mcqs Set-12

21- The structure that carries impulses away from the cell body of a neuron is:

A. Axon

B. Dendrite

C. Synapse

D. Myelin sheath

View Answer

Answer : A. Axon

Description

22- The compound used in photography as a fixing agent is:

A. Silver nitrate

B. Potassium bromide

C. Ammonium chloride

D. Sodium thiosulphate

View Answer

Answer : D. Sodium thiosulphate

Description

23- The largest bone in the human face is:

A. Maxilla

B. Mandible

C. Frontal

D. Zygomatic

View Answer

Answer : B. Mandible

Description

24- The SI unit of conductance is:

A. Farad

B. Mho

C. Ohm

D. Siemens

View Answer

Answer : D. Siemens

Description

25- The study of blood is called:

A. Pathology

B. Neurology

C. Cardiology

D. Haematology

View Answer

Answer : D. Haematology

Description

26- Which gas is used in the manufacturing of sulphuric acid?

A. Nitrogen

B. Oxygen

C. Hydrogen

D. Sulphur dioxide

View Answer

Answer : D. Sulphur dioxide

Description

27- The structure that connects muscle to bone is:

A. Joint

B. Cartilage

C. Tendon

D. Ligament

View Answer

Answer : C. Tendon

Description

28- The largest ocean current is:

A. Humboldt

B. Antarctic Circumpolar Current

C. Gulf Stream

D. Kuroshio

View Answer

Answer : B. Antarctic Circumpolar Current

Description

29- The chemical formula of ozone is:

A. O

B. O₄

C. O₂

D. O₃

View Answer

Answer : D. O₃

Description

30- The planet that rotates on its side is:

A. Jupiter

B. Saturn

C. Uranus

D. Neptune

View Answer

Answer : C. Uranus

Description

31- The hormone that regulates blood sugar levels is:

A. Insulin

B. Thyroxine

C. Adrenaline

D. Estrogen

View Answer

Answer : A. Insulin

Description

32- The process of DNA replication occurs in:

A. Nucleus

B. Ribosome

C. Cytoplasm

D. Mitochondria

View Answer

Answer : A. Nucleus

Description

33- The most abundant gas in the Earth's atmosphere is:

A. Argon

B. Oxygen

C. Nitrogen

D. Carbon dioxide

View Answer

Answer : C. Nitrogen

Description

34- The instrument used to measure the density of liquids is:

A. Barometer

B. Hydrometer

C. Lactometer

D. Hygrometer

View Answer

Answer : B. Hydrometer

Description

35- The disease caused by the bite of a rabid animal is:

A. Rabies

B. Tetanus

C. Plague

D. Typhoid

View Answer

Answer : A. Rabies

Description

36- The chemical formula of calcium carbonate is:

A. CaO

B. CaCO₃

C. Ca(OH)₂

D. CaSO₄

View Answer

Answer : B. CaCO₃

Description

37- The main function of leaves is:

A. Support

B. Reproduction

C. Absorption

D. Photosynthesis

View Answer

Answer : D. Photosynthesis

Description

38- The SI unit of work is:

A. Watt

B. Joule

C. Newton

D. Pascal

View Answer

Answer : B. Joule

Description

39- The part of the digestive system where most nutrient absorption occurs is:

A. Stomach

B. Small intestine

C. Large intestine

D. Oesophagus

View Answer

Answer : B. Small intestine

Description

40- The hardest known material in the human body is:

A. Hair

B. Nail

C. Bone

D. Tooth enamel

View Answer

Answer : D. Tooth enamel

Description