Natural Science MCQs (151–200) – Page 4
Advanced Mixed Science MCQs
- Which quantity remains constant in uniform circular motion?
a) Velocity
b) Speed
c) Acceleration
d) Force
Answer: b - Unit of pressure is:
a) Newton
b) Pascal
c) Joule
d) Watt
Answer: b - Which gas is used in electric bulbs?
a) Oxygen
b) Nitrogen
c) Argon
d) Hydrogen
Answer: c - Which phenomenon explains rainbow formation?
a) Reflection
b) Refraction
c) Dispersion
d) Diffraction
Answer: c - Which type of mirror used in headlights?
a) Convex
b) Concave
c) Plane
d) None
Answer: b - Which metal is most reactive?
a) Copper
b) Iron
c) Sodium
d) Gold
Answer: c - Which element has atomic number 1?
a) Helium
b) Hydrogen
c) Oxygen
d) Carbon
Answer: b - Which gas is released during photosynthesis?
a) CO2
b) O2
c) N2
d) H2
Answer: b - Which enzyme digests proteins?
a) Amylase
b) Lipase
c) Pepsin
d) Trypsin
Answer: c - Which part of plant conducts water?
a) Phloem
b) Xylem
c) Root hair
d) Leaf
Answer: b - Which hormone controls blood sugar?
a) Thyroxine
b) Insulin
c) Adrenaline
d) Estrogen
Answer: b - Which blood group is universal donor?
a) A
b) B
c) AB
d) O
Answer: d - Which disease affects lungs?
a) Diabetes
b) Tuberculosis
c) Malaria
d) Cancer
Answer: b - Which layer contains ozone?
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere
Answer: b - Which energy source is cleanest?
a) Coal
b) Petrol
c) Solar
d) Diesel
Answer: c - Which force acts on falling object?
a) Friction
b) Gravity
c) Magnetic
d) Electric
Answer: b - Which device measures temperature?
a) Barometer
b) Thermometer
c) Hygrometer
d) Ammeter
Answer: b - Which wave has highest frequency?
a) Radio
b) Microwave
c) X-ray
d) Infrared
Answer: c - Which process converts solid to gas?
a) Evaporation
b) Sublimation
c) Condensation
d) Freezing
Answer: b - Which organ produces urine?
a) Liver
b) Kidney
c) Heart
d) Lung
Answer: b - Which cell lacks nucleus?
a) RBC
b) WBC
c) Neuron
d) Muscle
Answer: a - Which vitamin deficiency causes rickets?
a) A
b) B
c) C
d) D
Answer: d - Which mineral needed for bones?
a) Iron
b) Calcium
c) Zinc
d) Iodine
Answer: b - Which gas used in photosynthesis?
a) O2
b) CO2
c) N2
d) H2
Answer: b - Which part stores food in plant?
a) Root
b) Stem
c) Leaf
d) All
Answer: d - Which scientist discovered penicillin?
a) Newton
b) Fleming
c) Einstein
d) Darwin
Answer: b - Which is smallest particle?
a) Molecule
b) Atom
c) Cell
d) Electron
Answer: d - Which gas is used in respiration?
a) CO2
b) O2
c) N2
d) H2
Answer: b - Which force opposes motion?
a) Gravity
b) Friction
c) Pressure
d) Energy
Answer: b - Which part of brain controls breathing?
a) Cerebrum
b) Cerebellum
c) Medulla
d) Spinal cord
Answer: c - Which blood cells clot blood?
a) RBC
b) WBC
c) Platelets
d) Plasma
Answer: c - Which is unit of power?
a) Joule
b) Watt
c) Volt
d) Ampere
Answer: b - Which gas is greenhouse gas?
a) Oxygen
b) Nitrogen
c) CO2
d) Hydrogen
Answer: c - Which layer closest to Earth?
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere
Answer: a - Which planet has rings?
a) Earth
b) Mars
c) Saturn
d) Venus
Answer: c - Which is red planet?
a) Venus
b) Mars
c) Jupiter
d) Saturn
Answer: b - Which process makes food in plants?
a) Respiration
b) Photosynthesis
c) Digestion
d) Transpiration
Answer: b - Which metal used in batteries?
a) Zinc
b) Copper
c) Iron
d) Aluminium
Answer: a - Which gas supports combustion?
a) CO2
b) O2
c) N2
d) H2
Answer: b - Which is hardest natural substance?
a) Gold
b) Iron
c) Diamond
d) Copper
Answer: c - Which organ filters blood?
a) Liver
b) Kidney
c) Heart
d) Brain
Answer: b - Which scientist gave laws of motion?
a) Einstein
b) Newton
c) Galileo
d) Faraday
Answer: b - Which gas is used in welding?
a) Oxygen
b) Hydrogen
c) Acetylene
d) Nitrogen
Answer: c - Which type of energy stored in food?
a) Kinetic
b) Chemical
c) Heat
d) Light
Answer: b - Which part of plant makes food?
a) Root
b) Stem
c) Leaf
d) Flower
Answer: c - Which disease caused by deficiency of Vitamin D?
a) Scurvy
b) Rickets
c) Beriberi
d) Anemia
Answer: b - Which instrument measures wind speed?
a) Barometer
b) Hygrometer
c) Anemometer
d) Thermometer
Answer: c - Which is non-renewable?
a) Solar
b) Wind
c) Coal
d) Hydro
Answer: c - Which part of eye controls light?
a) Retina
b) Iris
c) Cornea
d) Lens
Answer: b - Which organ pumps blood?
a) Brain
b) Lung
c) Heart
d) Kidney
Answer: c
Strong Practice → Strong Rank
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