JEE Questions for Chemistry Solutions Quiz 1 - MCQExams.com

The osmotic pressure is expressed in the units of
  • MeV
  • cal
  • cm/s
  • atm
The freezing point of 1% solution of lead nitrate in water will be
  • 2° C
  • 1° C
  • 0° C
  • below 0° C
Which among the following is a non-colligative property
  • elevation in boiling point
  • osmotic pressure
  • refractive index
  • lowering of vapour pressure
The osmotic pressure of a solution is given by the relation
  • π = ST/C
  • π = CT/S
  • π = SC/T
  • π/C = ST
The freezing point of 1 molal NaCl solution assuming NaCl to be 100% dissociated in water is
  • – 1.86oC
  • – 3.72oC
  • +1.86oC
  • +3.72oC
Now a days, divers uses the cylinder having gaseous mixture contains -
  • 2 % O2 and 98 % He
  • 11.7 % He, 56.2 % N2 and 32.1 % O2
  • 11.7 % N2, 56.2% He and 32.1% O2
  • 11.7 % He, 56.2 % O2 and 32.1 % N2
Due to which reason, O2 gas liberates from the blood of tissues of animal bodies
  • less temperature of tissues
  • partial pressure of oxygen gas is more in tissues
  • partial pressure of carbon dioxide is less in tissues
  • partial pressure of oxygen gas is less in tissues
Which of the following is not a substitutional solid solution ?
  • wc
  • brass
  • steel
  • monel metal
Which of the following is a substitutional solid solution ?
  • wc
  • bronze
  • steel
  • monel metal

Chemistry-Solutions-7159.png
  • increases
  • decreases
  • remains constant
  • can’t be predicted
Which of the following is a colligative property ?
  • vapour pressure
  • boiling point
  • freezing point
  • osmotic pressure
25 cm3 of oxalic acid completely neutralise 0.064 g of sodium hydroxide. Molarity of the oxalic acid solution is
  • 0.064
  • 0.045
  • 0.015
  • 0.032
Find the molarity of the solution containing 5.3 g of Na2CO3 in 500 mL solution
  • 1.0 M
  • 0.1 M
  • 0.25 M
  • 0.2 M
25 mL of 3.0 M HCl are mixed with 75 mL of 4.0 M HCl. If the volumes are additive, the molarity of the final mixture will be
  • 4.0 M
  • 3.75 M
  • 4.25 M
  • 3.50 M
Molality of 2.5 g of ethanoic acid (CH3 COOH) in 75 g of benzene is
  • 0.565 mol/kg
  • 0.656 mol/kg
  • 0.556 mol/kg
  • 0.665 mol/kg
Which of the following is dependent on temperature?
  • Molarity
  • Mole fraction
  • Weight percentage
  • Molality
29.2% (w/W) HCl stock solution has density of 1.25 g mL-1. The molecular weight of HCl is 36.5 mol-1. The volume (mL) of stock solution required to prepare a 200 mL solution 0.4 M HCl is
  • 5.0 mL
  • 6.0 mL
  • 8.0 mL
  • 15.0 mL
Which of the following will represent the normality of 10% ( w/V ) acetic acid?
  • 1.66 N
  • 16.6 N
  • 3.32 N
  • 33.2 N
The volume of 0.1 M oxalic acid that can be completely oxidised by 20 mL of 0.025 M KMnO4 solution is
  • 25 mL
  • 12.5 mL
  • 37.5 mL
  • 125 mL
Dissolving 120 g of urea (mol. wt.in 1000 g of water gave a solution of density 1.15 g/mL. The molarity of the solution is
  • 1.78 M
  • 2.00 M
  • 2.05 M
  • 2.22 M
A 5.2 molal aqueous solution of methyl alcohol, CH3OH, is supplied. What is the mole fraction of methyl alcohol in the solution ?
  • 1.100
  • 0.190
  • 0.086
  • 0.050
The molality of a urea solution in which 0.0100 g of urea, [(NH2)2 CO] is added to 0.3000 dm2 of water at STP is
  • 0.555 m
  • 5.55 × 10-4 m
  • 33.3 m
  • 3.33 x 10-2 m
The sum of mole fractions of A, B and C in an aqueous solution containing 0.2 moles of each A, B and C is
  • 0.6
  • 0.2
  • 1.0
  • 1.2
Out of following which one is not an example of a solution?
  • Air
  • Brass
  • Amalgam
  • Benzene in water
In which ratio of volume 0.4 M HCl and 0.9 M HCl are to be mixed such that the concentration of the resultant solution becomes 0.7 M ?
  • 4 : 9
  • 2 : 3
  • 3 : 2
  • 1 : 1
Calculate the normality of 250 mL aqueous solution of H2SO4 having pH = 0.00.
  • 0.25 N
  • 0.50 N
  • 1 N
  • 2 N
What is the molarity of 0.2 N Na2 CO3 solution ?
  • 0.1 M
  • 0 M
  • 0.4 M
  • 0.2 M
Molarity is expressed as
  • L/mol
  • mol/L
  • mol/1000 g
  • g/L
What is the total number of moles of H2 SO4 needed to prepare 5.0 L of a 2.0 M solution of H2 SO4 ?
  • 2.5
  • 5.0
  • 10
  • 20
2.5 L of NaCl solution contain 5 moles of the solute. What is the molarity ?
  • 5 M
  • 2 M
  • 2.5 M
  • 12.5 M
0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Chemistry Quiz Questions and Answers