General Science (Biology-Physics-Chemestry) Question & Answers MCQ's




All Questions are from Year - 2018 or older

Question 211 :
Which part of human brain is more developed in comparison to others?

  1. Cerebrum
  2. Cerebellum
  3. Optic lobes
  4. Medulla oblongata
  

Question 212 :
Improved variety of paddy (rice) is

  1. Ranjit
  2. Sonalika
  3. Ganga 101
  4. Pusa 215
  

Question 213 :
The maximum possible volume of air which can be inspiration is called as

  1. tidal air volume
  2. vital lung capacity
  3. complemental air volume
  4. total lung capacity
  

Question 214 :
Out of the following which frequency is not 5 clearly audible to the human ear?

  1. 30 Hz
  2. 30 000 Hz
  3. 300 Hz
  4. 3000 Hz
  

Question 215 :
A man is standing on a boat in still water. If he walks towards the shore the boat will

  1. move away from the shore
  2. remain stationary
  3. move towards the shore
  4. sink
  

Question 216 :
28) The exchange of gases in a mammal takes place is

  1. trachea
  2. bronchioles
  3. bronchi
  4. alveoli
  

Question 217 :
The most abundant metal on the earth is

  1. iron
  2. gold
  3. aluminium
  4. copper
  

Question 218 :
Curdling of milk in the stomach is due to the action of

  1. pepsin
  2. rennin
  3. HCL
  4. rennin
  

Question 219 :
Atomicity of Phosphorous is

  1. 1
  2. 2
  3. 4
  4. 6
  

Question 220 :
Isotopes differ in the number of

  1. electrons
  2. protons
  3. neutrons
  4. nucleons
  

Question 221 :
The screen behind the eye lens is called the

  1. iris
  2. ciliary muscle
  3. retina
  4. pupil
  

Question 222 :
Which of the following frequencies of sound cannot be heard by human beings?

  1. 5 Hz
  2. 20 Hz
  3. 400 Hz
  4. 1000 Hz
  

Question 223 :
The unit of power is

  1. watt per second
  2. joule
  3. kilo joule
  4. watt
  

Question 224 :
How many fundamental units are present in the SI system of units?

  1. 5
  2. 6
  3. 7
  4. 3
  

Question 225 :
An allotropic form of carbon used for cutting and drilling is

  1. charcoal
  2. bone charcoal
  3. graphite
  4. diamond
  

Question 226 :
Beakers A B and C contain zinc sulphate silver nitrate and iron (II) sulphate solutions respectively. copper pieces are added to each beaker. Blue colour will appear to in case of

  1. beaker A
  2. beaker B
  3. beaker C
  4. All the beakers
  

Question 227 :
Ordinary glass is a mixture of

  1. sodium silicate Calcium silicate
  2. sodium silicate Calcium silicate and Silica
  3. sodium silicate and Silica
  4. none of the above
  

Question 228 :
The longest cell in the body of an animal is

  1. osteocytes
  2. neuron
  3. chromatophores
  4. lymph corpuscles
  

Question 229 :
The soap can be hardened by

  1. adding sodium carbonate or sodium silicate during manufacture
  2. adding sodium chloride
  3. adding potassium hydroxide
  4. adding animal fat and coconut oil
  

Question 230 :
Two rods of same material and length have their electric resistance to ratio 1 : 2. When both rods are dipped in water the correct statement will be

  1. A has more loss of weight
  2. B has more loss of weight
  3. Both have same loss of weight
  4. Loss of weight will be in the ratio 1 : 2
  

Question 231 :
a-particle are

  1. double positive helium nucleus
  2. single positive helium nucleus
  3. neutral helium atom
  4. None of these
  

Question 232 :
Slaked lime reacts with chlorine to give

  1. baking soda
  2. washing soda
  3. bleaching powder
  4. cement
  

Question 233 :
Grana refers to

  1. glycolysis of glucose
  2. by-product of photosynthesis
  3. stacks of thylakoids
  4. stacks of quantasomes
  

Question 234 :
In case of uniform circular motion which of the following physical quantity do not remain constant?

  1. Speed
  2. Momentum
  3. Kinetic energy
  4. Mass
  

Question 235 :
The main function of plasma membrane is to

  1. maintain cell shape and size
  2. control of all cellular activity
  3. regulate the flow of materials into and out of the cell
  4. store cell material
  

Question 236 :
Which order of relative size amongst the following is incorrect?

  1. Li < Na < K
  2. C < Si < AI
  3. Mg > AI < Na
  4. F < CI < Br
  

Question 237 :
The most abundant element in the sun's atmosphere is

  1. xenon
  2. argon
  3. hydrogen
  4. oxygen
  

Question 238 :
Saliva has the enzyme

  1. pepsin
  2. ptyalin
  3. trypsin
  4. rennin
  

Question 239 :
Which of the following lens is used to minimise hypermetropia?

  1. convex lens
  2. concave lens
  3. cylindrical lens
  4. none of these
  

Question 240 :
Typical Sub-dub' sound heard in heartbeat are due to

  1. closing of bicuspid and tricuspid valves
  2. closing of semilunar valves
  3. closure of bicuspid-tricuspid valves followed by semilunar valves
  4. blood under pressure through aorta
  
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