General Knowledge (NDA/NA SOLVED PAPER 2023) (51 to 100)

Total Questions: 50

41. Which one of the following metal is NOT an essential component in stainless steel?

Correct Answer: (d) Tin
Solution:Stainless steel is an alloy which consist of 83% iron, 1% carbon, 15% chromium 1% nickel with carbon (C), silicon (Si) and manganese (Mn) and molybdenum. Chromium reacts with oxygen and form a layer of oxide of chromium which makes resistant to corrosion.

42. Match List-I with List-II and select the correct answer using the code given below the Lists:

List I (Process)List II (Separation method)
A. Separation of acetone and water from their mixture1. Chromatography
B. Separation of water and kerosene oil from their mixture2. Centrifugation
C. Separation of cream from milk3. Distillation
D. Separation of pigments from plant extract4. Separating Funnel

Code :

ABCD
(a)3241
(b)4213
(c)3421
(d)4123
Correct Answer: (c)
Solution:Distillation works on the principle of difference in bolilng point of liquids separating funnels works on the principle of difference in densities of immiscible liquids centrifugal woks on principle of sedimentation paper chromatography principle of partition chromatography or adsorption chromatography

43. Which one of the following is NOT a requirement for photosynthesis ?

Correct Answer: (d) O₂
Solution:Oxygen is the product of photosynthesis whereas carbon dioxide, water, sunlight and chlorophyll are the required components.
The chemical equation of photosynthes is

44. In flowering plants, DNA content of the parent plant gets halved during

Correct Answer: (d) Pollen formation
Solution:The DNA content of the parent plant gets halved during the formation of pollen. The process in which the DNA content of the parent plant gets halved is called meiosis. Meiosis is a type of cell division that occurs during the formation of gametes (sex cells), such as pollen in flowering plants.

45. Which one of the following is the correct sequence during sexual reproduction in Angiosperms?

Correct Answer: (a) Egg → zygote → embryo → seed
Solution:Correct sequence of events in sexual reproduction in angiosperms(flowering plants) egg(pollination) ȧzygot(fertilization)àembryoàseed

46. Which one of the following combinations of events represents the correct sequence during reproduction in flowering plants ?

Correct Answer: (d)
Solution:(d)

47. The book 'Nation First: The Golden Saga of 82 Years' is the history of which one of the following organizations?

Correct Answer: (c) Central Reserve Police Force
Solution:(c)

48. Consider the following statements regarding Sanchi and its archaeological findings:

1. When Sanchi was discovered in 1818, three of its four gateways were still standing, the fourth was lying on the spot where it had fallen
2. Animals depicted at Sanchi include elephants, horses, monkeys and cattle
Which of the statements given above is/are correct?

Correct Answer: (c) Both 1 and 2
Solution:Sanchi was discovered by General Taylorin, 1818 out of four gateways to the stupa in the southern was built first.
Animals represented a bull, a horse, an elephant and a lion and monkey is also present at some places at sanchi.

49. Which Five Year Plan of India focused on rapid industrialization based growth process?

Correct Answer: (b) Second Five Year Plan
Solution:(b)

50. Chandimangala, a sixteenth century text, was composed by

Correct Answer: (d) Mukundaram Chakrabarti
Solution:(d)