FSC Chemistry MCQs Chapter 3 Class 11





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Chemistry Ch 3 Class 11 States of Matter – Gases

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A graph between volume and temperature gives a straight line which cuts the temperature axis at:

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What assumptions are made in the Kinetic Theory about an ideal gas?

There are no forces of attraction between molecules
the molecules are in a state of continuous random motion
the size of the molecule is negligible
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Real gases deviate significantly from ideal gas behavior at

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According to Charles Law, when temperature is reduced to half the volume will be

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When an element exists in more than one crystalline form, the phenomenon is termed as:

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How many balloons of capacity 0.25dm3 at 1atm pressure can be filled from a hydrogen gas cylinder of 5dm3 capacity at 10 atm?

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Glass is a/an:

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For a given mass of gas, if the pressure is reduced to half and its temperature is doubled, then volume V will become?

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The internal energy of an ideal gas depends upon its:

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Matter changes from one state to another state on change in ___________.

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What is the volume in cm3 of 3.01 x 10^23 molecules of O2 gas at S.T.P.?

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Which of the following pairs of gases have same rate of diffusion:

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Statement of Graham’s Law is

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At the transition temperature of a crystalline solid, the substance exists:

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Statement of Charles Law:

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The crystals formed as a result of vander der Waals interactions are:

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Pressure remaining constant, at which temperature volume of gas will become twice to the volume at 0 C?

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Gases can be converted into liquid by:

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The actual volume of gas molecules is considered negligible at following pressures:

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Which of the following solids is an example of a substance with a macromolecular structure?

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Solid NaCl is a bad conductor of electricity because:

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Which of the following statements is true of Amorphous solids?

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If we take some water at 0oC and start heating it,we find that in the temperature range 0oC to 4oC:

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All the gasses at 212.44 cm3 have

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Diamond and Graphite:

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Excluded volume is not equal to the actual volume of gas molecules and is represented by:

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Comparative rates of diffusion of He and SO2 will be _______.

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The value of S.T.P for 1 mole of any ideal gas is:

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Half atmospheric pressure is:

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What is the temperature at which the volume of gas is said to be zero?

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The expression PV = nRT represents the:

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Solid CO2 dry ice has a structure just like:

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When Gypsum is heated to about 100° C, it losses some water of crystallization and becomes:

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s and p Block Elements
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A solid melts sharply just above 100 degree centigrade. it does not conduct electricity even when molten. It has weak Vander waal’s forces. What is the structure of the solid most likely to be?

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A sample of gas weighs 1.25 g, at 28 C occupying a volume of 2.50 x 10-2 ml and its pressure is 715 torr. What is the molar mass in grams?

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Which one is not related to evaporation?

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When does a gas deviate the most from its ideal behavior ?

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Liquid crystals are used for:

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Which of the following is constant during an isothermal process?

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Gases behave ideal at

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An example of a solution not in equilibrium is:

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The Vander Waal’s constant ‘If of a gas Is four times the:

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If the matter in a given system at a given condition is divided into two equal parts, then the value of the extensive properties will become:

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The unit of viscosity is:

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A child’s balloon has a volume 3.80 dm3, when the temperature is 35°C. If the balloon is put in a refrigerator and cooled to 5°c, the approximate volume of the balloon is (assume pressure inside the balloon is equal to atmospheric pressure):

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The stability of ionic crystal depends principally on:

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Upon which factor is vapour pressure not dependent:

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A crystal system having all sides (a, b and c) unequal and anglesα = β = γ= 90 is:

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Acetone and Chloroform are soluble into each other due to:

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1 liter of a gas weighs 2 g at 300 K and 1 atm pressure. If the pressure is made 0.75 atm, at which of the following temperatures will 1 L of the same gas weigh 1 g?

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Real gases behave ideally at:

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According to the general gas equation, density of an ideal gas depends upon:

PMC 2020
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Choose the correct statement:

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54 / 63

The Unit cell with crystallographic dimensions a = b ≠c ,α = β = γ = 90 degrees is:

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Rate of effusion of a gas depends upon:

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1 atmospheric pressure is equal to

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CO2 and SO2 both are tri-atomic molecules but heat of vaporization of SO2 is greater than that of CO2 due to:

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950 torr corresponds to:

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2 gasses at SIP, with equal volume and equal pressure will have same a

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The compression factor (compressibility factor) for one mole of a Van der Waals gas at 0 and 100 atmosphere pressure is found to be 0.5. Assuming that the volume of gas molecule is negligible, calculate the Van der Waals constant ‘a’.

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When gases expand, this causes:

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Which of the following gas is more ideal at STP?

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63 / 63

Which of the following substances has giant covalent structure?

PMC 2020
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One response to “FSC Chemistry MCQs Chapter 3 Class 11”

  1. in mcqs No.25 both A and C are correct and same options so kindly check it

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