Mole fraction of ethyl chloride and methanol in a ternary solution is 0.6 and 0.32 respectively. What is the mole fraction of third component. Also identify the solvent in this ternary solution.
  • 0.03, Ethyl chloride
  • 0.08, cannot be determined
  • 0.03, Methanol
  • 0.08, Ethyl chloride
Molality is expressed in
  • mol/kg
  • mol/L
  • L/mol
  • g/L
The level of contamination of chloroform was found to be 15 ppm. It means 15 g of chloroform is present in how many grams of solution?
  • 1000 g
  • 106 g
  • 100 g
  • 1.0 g
Mole fraction of glycerine, C3H5(OH)3 in a solution containing 36 gm of water and 46 gm of glycerine is:
  • 0.40
  • 0.20 correct
  • 0.46
  • 0.36
Calculate the molality of 12.5% w/w sulphuric acid?
  • 2.85m
  • 3.15m
  • 1.45m correct
  • 2.50m
When the solvent is in solid state, solution is
  • Solid solution correct
  • Gaseous solution
  • Solution
  • Liquid solution
The number of moles of KCl in 3 L of 3 M solution is
  • 27
  • 1
  • 9
  • 3
A 200.0 g sample of river water contains 6 mg of lead. How many parts per million of lead are in the sample?
  • 3 x 102 ppm
  • 6.5 m
  • 30 ppm
  • 21 ppm
The mass of sodium chloride in 2.5 M solution is
  • 37.80 g
  • 146.25 g
  • 117 .00g
  • 58.50 g
The molarity of a solution obtained by mixing 750 mL of 0.5 M HCL with 250 mL of 2 M HCL will be
  • 1.25 M
  • 2.5 M
  • 1.00 M
  • 0.875 M
0 h : 0 m : 1 s

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