Q.1
How many moles of NaCl are contained in 100.0 mL of a 0.200 M solution?
  • .0002
  • .002
  • 2
  • .02
Q.2
find the molarity of the solution where mole fraction of solute is 0.5000 and Molar Mass of Solute is 49 g/Mole and Molar mass of solvent is 18 g/M and density of solution is 1.769 g/ml
  • 15.24
  • 12.24
  • 11.13
  • 10.1
Q.3
What will be the molarity of a solution, which contains 5.85 g of NaCl per 500ml?
  • .5 M
  • .4 M
  • 1 M
  • .2 M
Q.4
What is the molarity of a solution that contains 1.724 moles of solute in 2.50 L of solution?
  • .55 M
  • 1.1 M
  • .670 M
  • .690 M
Q.5
The density of a 2.03 M solution of Acetic acid is water is 1.017 g/mL. The molality of the solution is
  • 2.27 m
  • 1.52 m
  • 2.5 m
  • 2 m
Q.6
The number of Moles of KCL is 1000 ml of 3 Molar Solution is
  • 1
  • 1.5
  • 3
  • 2
Q.7
we mix three solution of same solute of Molarity 1M, 2M ,3M and Volume 1 L,2L ,3L. Find the molarity of the resultant solution Molarity of the resulting solution is given by
  • 3 M
  • 3.3 M
  • 2.33 M
  • 1 M
Q.8
Which of the following modes of expressing concentration is independent of temperature
  • Molality
  • Formality
  • Normality
  • Molarity
Q.9
If 100 ml of 1.0 M NaOH solution is diluted to 1 L, the resulting solution contains
  • .1 Mole of NaOH
  • .05 Mole of NaOH
  • 1 Mole of NaOH
  • 10 mole of NaOH
Q.10
A Molal solution is one that contains one mole of solute in
  • 1 L of solvent
  • 1000 g of solvent
  • 22.4 L of solution
  • 1 L of solution
Q.11
Assertion (A) : Significant figures for 0.10 is 2 where as for 10 it isReason (R) : Zero at the end or right of a number are significant provided they are not on the right side of the decimal point.
  • A is true but R is false.
  • Both A and R are true and R is correct explanation of A.
  • Both A and R are false.
  • Both A and R are true but R is not a correct explanation of A.
Q.12
Assertion (A) : One atomic mass unit is defined as one twelfth of the mass of one carbon-12 atom. Reason (R) : Carbon-12 isotope is the most abundunt isotope of carbon and has been chosen as standard.
  • Both A and R are false.
  • Both A and R are true but R is not the correct explanation of A.
  • A is true but R is false.
  • Both A and R are true and R is the correct explanation of A.
Q.13
Which of the following pairs have the same number of atoms?
  • 28 g of N2 and 32 g of O2
  • 16 g of O2 and 44 g of CO2
  • 16 g of O2(g) and 4 g of H2(g)
  • 12 g of C(s) and 46 g of Na(s)
Q.14
The value of $914 + 23.2$ using significant figures is
  • 930
  • 937.2
  • 938
  • 937
Q.15
The number of gram molecule of oxygen in $6.02 \times 10^{24}$  CO molecules is
  • 5 gm-molecules
  • .5 gm-molecules
  • 10 gm-molecules
  • 1 gm-molecules
Q.16
The number of significant figures in 1060.50 is
  • 4
  • 3
  • 6
  • 5
Q.17
The number of atoms of oxygen present in 88g of $CO_2$ is
  • $24.092 \times 10^{22}$
  • $12.046 \times 10^{23}$
  • $24.092 \times 10^{23}$
  • $6.023 \times 10^{23}$
Q.18
The mole fraction of solvent in a solution where mole fraction of solute is .6
  • .4
  • 1.6
  • .6
  • 1
Q.19
In the reaction 2X + 4Y → 3U + 4V, when 5 moles of X react with 6 moles of Y, Then which of the following is incorrect
  • the amount of V formed will be 5 moles
  • the amount of U formed is 4.5 moles
  • Insufficient information
  • ‘Y’ is the limiting reagent.
Q.20
Match the column
class11-chemistry-chapter-1-mcq-1.png
  • p -> i, q -> iii, r -> ii, s-> iv
  • p -> ii, q -> iv, r -> iii, s-> i
  • p -> ii, q -> iii, r -> iv, s-> i
  • p -> ii, q -> i, r -> iv, s-> iii
0 h : 0 m : 1 s