1st Year Chemistry Chapter 22 Test22. Energy

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Catalyst used in catalytic cracking is generally:
   1. Iron oxide
   2. Nickel
   3. Zeolites
   4. Manganese dioxide
2. J/L is the unit of :
   1. Energy density
   2. Specific energy density
   3. Energy
   4. Density
3. Photovoltaic cells generate which type of current?
   1. Alternating current
   2. Direct current
   3. Pulsed current
   4. Magnetic current
4. The equation representing Einstein's mass-energy relation is:
   1. E = ½mv²
   2. E = mc²
   3. E = hf
   4. E = Pt
5. Petroleum mainly consists of:
   1. Oxygen and nitrogen
   2. Hydrocarbons
   3. Acids and bases
   4. Proteins
6. Which petroleum fraction has the lowest boiling point?
   1. Petrol
   2. LPG
   3. Diesel
   4. Bitumen
7. The main by-product of nuclear fusion is:
   1. CO₂
   2. Helium
   3. Methane
   4. Nitrogen
8. Steam reforming produces a mixture of:
   1. CO and H₂
   2. CO₂ and CH₄
   3. H₂O and CO₂
   4. O₂ and N₂
9. The energy content of fuel is expressed in terms of:
   1. Density and volume
   2. Current and voltage
   3. Power and time
   4. Energy density and specific energy
10. The main advantage of solar cells is:
    1. Low cost and short life
    2. Long lifespan and low maintenance
    3. High pollution
    4. Uses fossil fuels