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  • Question

  • 1 gm mole of an alcohol whose molecular weight is 74 contains 48 gms of carbon, 10 gms of hydrogen and 16 gms of oxygen. Its molecular formula is


  • Options
  • A. C4H9OH
  • B. C3H21OH
  • C. (C2H4)2H2.OH
  • D. C2H33OH

  • Correct Answer
  • C4H9OH 

    • Stoichiometry problems

    Search Results

    • 1. 1 BTU/lb.?°F is equivalent to __________ kcal/kg.°C.

    • Options
    • A. 1
    • B. 2.42
    • C. 1.987
    • D. 4.97
      • Discuss
    • 2. At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant?

    • Options
    • A. 273°C
    • B. 273°K
    • C. 100°C
    • D. 200°C
      • Discuss
    • 3. Pick out the wrong unit conversion of heat transfer rate.

    • Options
    • A. 1 kcal/hr= 1.163 Watt.
    • B. 1 Watt = 1.163 kcal/hr.
    • C. 1 BTU/ft2.hr = 2.712 kcal/m2.hr.
    • D. 1 kcal/m2.hr = 0.3687 BTU/ft2.hr = 1.163 Watt/m2.
      • Discuss
    • 4. A reduction process is accompanied with increase in the

    • Options
    • A. number of electrons
    • B. oxidation number
    • C. both (a) & (b)
    • D. neither (a) nor (b)
      • Discuss
    • 5. Heat of __________ of a fuel is called its calorific value.

    • Options
    • A. formation
    • B. combustion
    • C. reaction
    • D. vaporisation
      • Discuss
    • 6. The average translational kinetic energy with which a gas molecule is endowed is dependent on its

    • Options
    • A. nature
    • B. size
    • C. absolute temperature
    • D. all (a), (b) & (c)
      • Discuss
    • 7. The reaction A + B ? C has been conducted in a reactor as shown below.

      The number of boundaries around which material balance can be written, are

    • Options
    • A. 1
    • B. 6
    • C. 3
    • D. 4
      • Discuss
    • 8. Osmotic pressure of the solution can be increased by

    • Options
    • A. decreasing its temperature.
    • B. increasing the volume of the vessel containing the solution.
    • C. diluting the solution.
    • D. none of these.
      • Discuss
    • 9. Concentration of a solution expressed in terms of __________ is independent of temperature.

    • Options
    • A. molarity
    • B. normality
    • C. molality
    • D. none of these
      • Discuss
    • 10. 1 kg/m2 is equal to __________ mm water column.

    • Options
    • A. 1
    • B. 10
    • C. 100
    • D. 1000
      • Discuss

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