General Science Questions (MCQs) for Competitive Examinations

General Science Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App

41. Which of the following is not pure endocrine gland?

[A] Thyroid gland
[B] Thymus gland
[C] Pancreas
[D] Adrenal

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42. Which of these is not a biological agent that causes disease?

[A] Mycoplasma
[B] Virus
[C] Radiations
[D] Fungi

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43. Colour blindness is an __ linked recessive trait.

[A] Z chromosome
[B] Y chromosome
[C] X chromosome
[D] None of these

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44. How are ‘anions’ formed?

[A] Addition of electron
[B] Removal of electron
[C] Addition of proton
[D] Removal of proton

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45. Which is the purest commercial form of iron?

[A] Pig iron
[B] Steel
[C] Stainless steel
[D] Wrought iron

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46. Which of the following is not a gaseous air pollutant?

[A] Oxides of nitrogen
[B] Hydrocarbon
[C] Smoke
[D] Oxides of sulphur

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47. The chemical name of ‘‘Hypo’’ commonly used in photography is:

[A] Sodium thiosulphate
[B] Silver nitrate
[C] Sodium nitrate
[D] Silver iodide

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48. Ethylene is a ______ molecule:

[A] polar
[B] ionic
[C] covalent
[D] nonpolar

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49. Which of the following is also known as Carbolic Acid?

[A] Phenol
[B] Hydroxide
[C] Sulphuric Acid
[D] Ethanol

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50. Which of the following is not an example of a biomass energy source?

[A] Wood
[B] Gobar gas
[C] Atomic energy
[D] Coal

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