Natural Science MCQs (851–900) – Page 18
Advanced & Exam-Level Science MCQs
- Which phenomenon causes rainbow formation?
a) Reflection
b) Refraction
c) Dispersion
d) Diffraction
Answer: c - Which wave is electromagnetic?
a) Sound
b) Water waves
c) Light
d) Mechanical waves
Answer: c - Which is vector quantity?
a) Speed
b) Time
c) Velocity
d) Distance
Answer: c - SI unit of force:
a) Joule
b) Newton
c) Watt
d) Ampere
Answer: b - Which law states inertia?
a) Newton’s First Law
b) Newton’s Second Law
c) Newton’s Third Law
d) Ohm’s Law
Answer: a - Best conductor of electricity:
a) Copper
b) Aluminium
c) Silver
d) Iron
Answer: c - Which element is alkali metal?
a) Calcium
b) Sodium
c) Magnesium
d) Iron
Answer: b - Which acid is present in curd?
a) Citric acid
b) Lactic acid
c) Acetic acid
d) Nitric acid
Answer: b - Which is noble gas?
a) Oxygen
b) Nitrogen
c) Helium
d) Hydrogen
Answer: c - Which process converts gas into liquid?
a) Evaporation
b) Condensation
c) Sublimation
d) Freezing
Answer: b - Water transport in plants occurs through:
a) Phloem
b) Xylem
c) Root
d) Leaf
Answer: b - Which organ controls balance?
a) Cerebrum
b) Cerebellum
c) Medulla
d) Spinal cord
Answer: b - Universal donor blood group:
a) A
b) B
c) AB
d) O
Answer: d - Vitamin for immunity:
a) A
b) B
c) C
d) D
Answer: c - Main respiratory organ:
a) Heart
b) Lungs
c) Brain
d) Kidney
Answer: b - Gas released during respiration:
a) O2
b) CO2
c) N2
d) H2
Answer: b - Largest ecosystem:
a) Forest
b) Desert
c) Ocean
d) Grassland
Answer: c - Main greenhouse gas:
a) O2
b) CO2
c) N2
d) H2
Answer: b - Renewable energy source:
a) Coal
b) Petrol
c) Solar
d) Diesel
Answer: c - Force acting on objects towards Earth:
a) Magnetic
b) Electric
c) Gravitational
d) Friction
Answer: c - SI unit of energy:
a) Joule
b) Watt
c) Volt
d) Ampere
Answer: a - Energy due to motion:
a) Potential
b) Kinetic
c) Thermal
d) Chemical
Answer: b - Who discovered neutron?
a) Thomson
b) Rutherford
c) Chadwick
d) Bohr
Answer: c - Particle with negative charge:
a) Proton
b) Electron
c) Neutron
d) Atom
Answer: b - Least reactive metal:
a) Sodium
b) Calcium
c) Gold
d) Iron
Answer: c - Gas used in photosynthesis:
a) O2
b) CO2
c) N2
d) H2
Answer: b - Part of eye forming image:
a) Retina
b) Iris
c) Cornea
d) Lens
Answer: a - Vitamin for vision:
a) A
b) B
c) C
d) D
Answer: a - Disease caused by virus:
a) TB
b) Dengue
c) Cholera
d) Typhoid
Answer: b - Organ filtering blood:
a) Liver
b) Kidney
c) Heart
d) Lung
Answer: b - Cloud formation process:
a) Evaporation
b) Condensation
c) Precipitation
d) Sublimation
Answer: b - Gas supporting combustion:
a) CO2
b) O2
c) N2
d) H2
Answer: b - SI unit of resistance:
a) Volt
b) Ampere
c) Ohm
d) Watt
Answer: c - Device converting mechanical to electrical energy:
a) Motor
b) Generator
c) Transformer
d) Battery
Answer: b - Gas used in balloons:
a) Oxygen
b) Nitrogen
c) Helium
d) CO2
Answer: c - Closest planet to Sun:
a) Venus
b) Earth
c) Mercury
d) Mars
Answer: c - Largest planet:
a) Earth
b) Mars
c) Jupiter
d) Venus
Answer: c - Red planet:
a) Earth
b) Mars
c) Venus
d) Saturn
Answer: b - Most abundant gas:
a) Oxygen
b) Nitrogen
c) CO2
d) Hydrogen
Answer: b - Layer with weather:
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere
Answer: a - Instrument measuring humidity:
a) Barometer
b) Thermometer
c) Hygrometer
d) Anemometer
Answer: c - Biodegradable material:
a) Plastic
b) Glass
c) Paper
d) Metal
Answer: c - Gas used in fire extinguisher:
a) O2
b) CO2
c) N2
d) H2
Answer: b - Organ pumping blood:
a) Brain
b) Heart
c) Kidney
d) Lung
Answer: b - Process releasing energy:
a) Photosynthesis
b) Respiration
c) Transpiration
d) Digestion
Answer: b - Basic unit of life:
a) Atom
b) Cell
c) Tissue
d) Organ
Answer: b - Vitamin deficiency causing rickets:
a) A
b) B
c) C
d) D
Answer: d - Renewable energy example:
a) Coal
b) Petrol
c) Solar
d) Diesel
Answer: c - Organ removing waste:
a) Kidney
b) Heart
c) Brain
d) Lung
Answer: a
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