PSC Previous Years GS Questions Part 6

PSC Previous Years General Science Questions Part 6

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• 126. In which states of matter diffusion is grater?
• A) Solid
  B) liquid
  C) Gas
  D) Plasma
• Answer
• Correct Option : D
• Explanation

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• 127. Select Ore of Aluminium given below?
• A) Magnetite
  B) Bauxite
  C) Cuprite
  D) Hematite
• Answer
• Correct Option : B
• Explanation

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• 128. Which is the relay centre in our brain?
• A) Pituitary gland
  B) Thalamus
  C) Spinal Cord
  D) Meninges
• Answer
• Correct Option : B
• Explanation

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• 129. Which is used in the dials of clocks?
• A) Uranium
  B) Radium
  C) Cobalt
  D) Strontium
• Answer
• Correct Option : B
• Explanation

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• 130. Which metal is known as `Little Silver`?
• A) Gold
  B) Mercury
  C) Silver
  D) Platinum
• Answer
• Correct Option : D
• Explanation

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• 131. The Scientific study of skull and brain is known as?
• A) Pedogenesis
  B) Phrenology
  C) Cardiology
  D) Osteology
• Answer
• Correct Option : B
• Explanation

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• 132. The pH of human blood is?
• A) 7
  B) 7.4
  C) 7.9
  D) 7.8
• Answer
• Correct Option : B
• Explanation

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• 133. Cow`s milk is a rich source of?
• A) Vitamin A
  B) Vitamin B
  C) Vitamin D
  D) Vitamin C
• Answer
• Correct Option : A
• Explanation

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• 134. Short sightedness can be corrected by?
• A) concave lens
  B) Concave - Convex lens
  C) Convex lens
  D) Cylindrical lens
• Answer
• Correct Option : A
• Explanation

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• 135. The weight of brain of man is .... gms?
• A) 1200-1400gm
  B) 1400-1600gm
  C) 1250-1550 gm
  D) 1000-1200gms
• Answer
• Correct Option : A
• Explanation

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• 136. The mixture of nitric acid and hydrochloric acid?
• A) plaster of paris
  B) Bleaching power
  C) Carbondisulphide
  D) Aqua regia
• Answer
• Correct Option : D
• Explanation

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• 137. Mobile part of an atom?
• A) Neutron
  B) Proton
  C) Electron
  D) Nucleus
• Answer
• Correct Option : C
• Explanation

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• 138. Bones present in a human adult?
• A) 216
  B) 200
  C) 206
  D) 180
• Answer
• Correct Option : C
• Explanation

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• 139. Biogas Contains
• A) Methane
  B) Ethane
  C) Hydrogen Sulphide
  D) Ammonia
• Answer
• Correct Option : A
• Explanation

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• 140. The acid present in tea?
• A) Acetic acid
  B) Tartaric acid
  C) Lactic acid
  D) Tanic acid
• Answer
• Correct Option : D
• Explanation

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• 141. Number of Vertebrae in human skeleton?
• A) . 35
  B) 32
  C) 33
  D) 30
• Answer
• Correct Option : C
• Explanation

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• 142. A pulse which is considered as a substitute for milk?
• A) Green gram
  B) Peanut
  C) Black gram
  D) Soya bean
• Answer
• Correct Option : D
• Explanation

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• 143. Pigment gives red colour to blood?
• A) Haemoglobin
  B) RBC
  C) Plasma
  D) Bile
• Answer
• Correct Option : A
• Explanation

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• 144. The Vitamin that helps in blood clotting?
• A) B
  B) K
  C) C
  D) A
• Answer
• Correct Option : B
• Explanation

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• 145. The part of the potato do we eat
• A) underground stem
  B) root
  C) stem
  D) root nodes
• Answer
• Correct Option : A
• Explanation

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• 146. The Unit of power is
• A) Volt
  B) Watt
  C) Joule
  D) Calorie
• Answer
• Correct Option : B
• Explanation

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• 147. Which element group is the most reactive of all the metallic elements?
• A) Alkali metals
  B) Alkaline earth metals
  C) Transition metals
  D) Coin age metal
• Answer
• Correct Option : A
• Explanation

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• 148. The alloy of aluminium used for making magnets is
• A) Duralmin
  B) Aluminium bronze
  C) Invar
  D) Alnico
• Answer
• Correct Option : D
• Explanation

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• 149. Backing soda is
• A) Sodium Carbonate
  B) Sodium Bicarbonate
  C) Sodium thio sulphate
  D) Sodium Hydroxide
• Answer
• Correct Option : B
• Explanation

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• 150. Red blood corpuscles are formed in the ?
• A) Liver
  B) Bone Marrow
  C) Spleen
  D) Pancreas
• Answer
• Correct Option : B
• Explanation

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