Natural Science MCQs (251–300) – Page 6
Advanced & Conceptual Science MCQs
- Which phenomenon is responsible for blue color of sky?
a) Reflection
b) Refraction
c) Scattering
d) Diffraction
Answer: c - Which type of lens is used to correct hypermetropia?
a) Concave
b) Convex
c) Plane
d) None
Answer: b - Which is SI unit of frequency?
a) Hertz
b) Joule
c) Watt
d) Pascal
Answer: a - Which law relates pressure and volume?
a) Ohm’s Law
b) Boyle’s Law
c) Newton’s Law
d) Hooke’s Law
Answer: b - Which device measures resistance?
a) Ammeter
b) Voltmeter
c) Ohmmeter
d) Barometer
Answer: c - Which element is alkaline earth metal?
a) Sodium
b) Magnesium
c) Potassium
d) Iron
Answer: b - Which gas is used in fertilizers?
a) Oxygen
b) Nitrogen
c) Hydrogen
d) CO2
Answer: b - Which compound is baking soda?
a) NaCl
b) NaHCO₃
c) NaOH
d) CaCO₃
Answer: b - Which is strongest base?
a) NaOH
b) KOH
c) Ca(OH)₂
d) NH₄OH
Answer: b - Which organ helps in respiration in plants?
a) Root
b) Leaf
c) Stem
d) All
Answer: d - Which pigment gives green color to plants?
a) Hemoglobin
b) Chlorophyll
c) Melanin
d) Carotene
Answer: b - Which blood component helps clotting?
a) RBC
b) WBC
c) Platelets
d) Plasma
Answer: c - Which organ produces urine?
a) Liver
b) Kidney
c) Heart
d) Lung
Answer: b - Which vitamin helps immune system?
a) A
b) B
c) C
d) D
Answer: c - Which disease caused by virus?
a) TB
b) Malaria
c) COVID-19
d) Cholera
Answer: c - Which is largest ecosystem?
a) Forest
b) Ocean
c) Desert
d) Grassland
Answer: b - Which gas is responsible for ozone depletion?
a) CO2
b) CH4
c) CFC
d) O2
Answer: c - Which process causes rainfall?
a) Evaporation
b) Condensation
c) Precipitation
d) Sublimation
Answer: c - Which force keeps planets in orbit?
a) Magnetic
b) Electric
c) Gravitational
d) Friction
Answer: c - Which is unit of work?
a) Joule
b) Watt
c) Volt
d) Newton
Answer: a - Which metal is used in galvanization?
a) Iron
b) Zinc
c) Copper
d) Aluminium
Answer: b - Which gas is released in photosynthesis?
a) CO2
b) O2
c) N2
d) H2
Answer: b - Which is endocrine gland?
a) Liver
b) Thyroid
c) Kidney
d) Heart
Answer: b - Which part of brain controls thinking?
a) Cerebellum
b) Cerebrum
c) Medulla
d) Spinal cord
Answer: b - Which organ stores urine?
a) Kidney
b) Bladder
c) Liver
d) Lung
Answer: b - Which vitamin helps blood clotting?
a) A
b) B
c) C
d) K
Answer: d - Which disease caused by bacteria?
a) COVID-19
b) Tuberculosis
c) Dengue
d) Flu
Answer: b - Which energy source is renewable?
a) Coal
b) Petrol
c) Solar
d) Diesel
Answer: c - Which is SI unit of power?
a) Joule
b) Watt
c) Volt
d) Ampere
Answer: b - Which is non-renewable resource?
a) Wind
b) Solar
c) Coal
d) Hydro
Answer: c - Which part of plant absorbs water?
a) Leaf
b) Stem
c) Root
d) Flower
Answer: c - Which scientist discovered gravity?
a) Einstein
b) Newton
c) Galileo
d) Faraday
Answer: b - Which unit measures electric current?
a) Volt
b) Ampere
c) Ohm
d) Watt
Answer: b - Which instrument measures pressure?
a) Thermometer
b) Barometer
c) Hygrometer
d) Anemometer
Answer: b - Which gas is most abundant in air?
a) Oxygen
b) Nitrogen
c) CO2
d) Hydrogen
Answer: b - Which metal is best conductor?
a) Iron
b) Copper
c) Silver
d) Aluminium
Answer: c - Which organ purifies blood?
a) Heart
b) Kidney
c) Brain
d) Lung
Answer: b - Which is unit of resistance?
a) Volt
b) Ampere
c) Ohm
d) Watt
Answer: c - Which process releases energy?
a) Photosynthesis
b) Respiration
c) Transpiration
d) Digestion
Answer: b - Which gas supports combustion?
a) O2
b) CO2
c) N2
d) H2
Answer: a - Which is primary source of energy?
a) Moon
b) Sun
c) Earth
d) Wind
Answer: b - Which is smallest unit of life?
a) Tissue
b) Cell
c) Organ
d) Atom
Answer: b - Which disease caused by lack of Vitamin C?
a) Rickets
b) Scurvy
c) Beriberi
d) Anemia
Answer: b - Which planet is known as gas giant?
a) Earth
b) Mars
c) Jupiter
d) Venus
Answer: c - Which layer of atmosphere has weather changes?
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere
Answer: a - Which instrument measures wind speed?
a) Barometer
b) Hygrometer
c) Anemometer
d) Thermometer
Answer: c - Which is biodegradable?
a) Plastic
b) Glass
c) Paper
d) Metal
Answer: c - Which gas used in fire extinguisher?
a) O2
b) CO2
c) N2
d) H2
Answer: b - Which organ pumps blood?
a) Brain
b) Heart
c) Kidney
d) Lung
Answer: b
Next Level Practice → Top Rank
No comments:
Post a Comment