Quiz  /  Engineering Chemistry Gate & PSU MCQ Questions With Answers

  • 1. 
    Close the tap is the way to save ......

  • Air
  • Water
  • Electric
  • Wind

  • 2. 
    Does plastic melt ?

  • no way
  • maybe
  • i don't know
  • yes

  • 3. 
    As global warming continues, the intensity of what type of storm that hits coastlines is predicted to increase?

  • Tornadoes
  • Hurricanes
  • Tsunamis
  • Earthquakes

  • 4. 
    Green chemistry is the approach in chemical sciences that

  • efficiently uses renewable raw materials
  • avoids using toxic or hazardous reagents
  • exceeds costs for traditional manufacturing
  • Both A & B

  • 5. 
    What gas is known for increasing the amount of "trapped" heat in the atmosphere?

  • Oxygen
  • Nitrogen
  • Methane
  • Carbon Dioxide

  • 6. 
    Which of the following are sources of biomass to replace natural gas as the feedstock of many industrial processes? (1) Seaweed from large-scale farming (2) Waste paper from schools and offices (3) Methane gas from landfill sites

  • (1) and (2) only
  • (1) and (3) only
  • (2) and (3) only
  • (1), (2) and (3)

  • 7. 
    What is the following formula of calcium carbonate?

  • KCO3
  • HCO3
  • CaCO3
  • CaCO2

  • 8. 
    This is an image demonstrating...

  • Tornado Formation
  • The Greenhouse Effect
  • Hurricane Formation

  • 9. 
    What does it mean with an atom that has a net positive or negative charge?

  • A molecule
  • An element
  • An ion
  • a matter

  • 10. 
    What is a molecule?

  • one atom
  • two atoms
  • one element
  • two compounds

  • 11. 
    The amount of a substance that contains as many elementary entities (atoms, molecules, or other particles). It can be inferred to

  • avogadro's number
  • mole
  • molar mass
  • average atomic mass

  • 12. 
    What kind(s) of energy is(are) in a person climbing a ladder?

  • Potential
  • Kinetic
  • Both

  • 13. 
    Which of the following activities contributes the most to carbon emissions globally?

  • Deforestation
  • Agriculture
  • Burning fossil fuels
  • Respiration

  • 14. 
    Write the chemical formula of copper(II) nitrate

  • CuNO3
  • CuNO2
  • Cu(NO3)2
  • Cu2NO3

  • 15. 
    Which are recyclable items?

  • Used glass bottles
  • Plastics
  • Metal cans
  • All of the above

  • 16. 
    Who is found that theory?

  • John Dalton
  • J. J. Thomson
  • Ernest Rutherford
  • Niels Bohr

  • 17. 
    Green House gases

  • absorb the sun's radiation and trap heat
  • are good for our health
  • absorb gravity and keep us attached to Earth
  • expulse radiation to the sun and prevent us from getting to warm

  • 18. 
    Green Chemistry is the synonymous with remediation, removing hazardous chemicals from the environment.

  • True
  • False

  • 19. 
    What is the name of HCl?

  • Chloric acid
  • Hydro chloride
  • Dichloro acid
  • Acetic acid

  • 20. 
    What is the picture about?

  • a. air pollution
  • b. rubbish
  • c. littering
  • d. water pollution

  • 21. 
    What happens when air is heated?

  • it rises
  • it decreases
  • no effect
  • All of above

  • 22. 
    Methane (CH4) is the principal component of natural gas. How many moles of CH4 are present in 3.2 g of CH4? (molecular mass of CH4 is 16 g/mol)

  • 16
  • 1.6
  • 2
  • 0.2

  • 23. 
    What term means "does not break down in the environment"

  • biodegradeable
  • non-degradeable
  • corrosive
  • biodegenerative
Report Question
warning
access_time
  Time