GENERAL SCIENCE (GENERAL STUDIES) Part-3

Total Questions: 50

31. Which one of the following is also known as solution?

Correct Answer: (b) A homogeneous mixture

32. Which of the following metals burn with a white dazzing light, with oxygen?

Correct Answer: (c) Magnesium

33. H₂O (water) is

Correct Answer: (c) a neutral oxide.

34. Reduction of nitrates to ammonia can be achieved through one of the following methods :

Correct Answer: (a) in alkaline medium using Devarda’s alloy.

35. The most affected sulphur containing amino acid by PAN is

Correct Answer: (a) Cysteine

36. The concept of tissue culture was introduced by

Correct Answer: (c) Haberlandt

37. Beak is formed by

Correct Answer: (d) none

38. Pinna (external ear) is present in

Correct Answer: (c) Mammal

39. Which of the following could be found in both the nucleus and the cytoplasm?

Correct Answer: (d) Both RNA & ribosomes

40. The exchange of gases (O₂ and CO₂) in a mammal takes place in –

Correct Answer: (d) Alveoli