General Ability (Part-2) NDA/NA Solved Paper 2020-I

Total Questions: 100

41. Which one ofthe following statements regarding magnetic field is NOT correct?

Correct Answer: (c) Graphite is a good conductor of electircity

42. How many covalent bonds are present in a Chloropropane moleculehaving molecular formula, C₂H₇CI?

Correct Answer: (d) 10

43. Which one of the following statements is NOT correct?

Correct Answer: (b) Diamond is a good conductor of electricity

44. Which one of the following is the most fundamental characteristic of an element?

Correct Answer: (b) Atomic number

45. Neutrons were discovered by

Correct Answer: (a) James Chadwick

46. Atomic mass of an element is equal to the sum of number of

Correct Answer: (b) protons and neutrons only

47. Which one of the following element's isotope is used in the treatment of cancer?

Correct Answer: (b) Cobalt

48. Which one of the following cell organelles may play a role in expelling excess water and wastes in case of unicellular organisms?

Correct Answer: (b) Vacuole

49. Which one of the following terms describes the practice of growing two or more crops simultaneously on the same piece of land?

Correct Answer: (b) Mixed cropping

50. Which one of the following statements is correct about effects of antibiotics on viruses?

Correct Answer: (c) Viruses do not possess metabolic pathways on which antibiotics can function, whereas bacteria have such pathways