Conductivity and Conformations MCQs
The least stable is ___________
(A). Â Anti conformation
(B). Â Gauche conformation
(C). Â Eclipsed conformation
(D). Â Â Staggered conformation
(E). None of these
Multiple Choice Question Answer: Â c
The Potential energy always remains same during the rotation about the carbon-carbon of the n-butane.
(A). Â True
(B). Â False
(E). None of these
Multiple Choice Question Answer: Â b
In the gauche conformations, what are the methyl groups?
(A ). Â 900 apart
(B). Â 600 apart
(C). Â 1800 apart
(D). Â 3600 apart
(E). None of these
Multiple Choice Question Answer:Â b
Conductivity is defined as the ability to carry which of the following?
(A). Â Current
(B). Â Voltage
(C). Â Resistance
(D). Â All of the mentioned
(E). None of these
Multiple Choice Question Answer: Â a
The cell constant is defined as the ratio of which of the following?
(A). Â Area of either electrodes to the length between the electrodes
(B). Â Length between the electrodes to the area of either electrode
(C). Â Length between the electrodes to the volume of either electrode
(D). Â Resistivity to conductivity
(E). None of these
Multiple Choice Question Answer: Â b
Which of the following is The reciprocal of conductivity?
(A). Â Turbidity
(B). Â Viscosity
(C). Â Resistivity
(D). Â None of the mentioned
(E). None of these
Multiple Choice Question Answer:Â c
The factor at which the conductance of electrolytic solutions depends upon is ____________
(A). Â Number of charge carriers
(B). Â All of the mentioned
(C). Â Dielectric constant of the solvent
(D). Temperature and pressure
(E). None of these
Multiple Choice Question Answer: Â b
What is the energy that is required to rotate the n-butane molecule about the carbon-carbon bond called?
(A). Â Â Torsional energy
(B). Â Rotational energy
(C). Â Enantiomeric energy
(D). Â Potential energy
(E). None of these
Multiple Choice Question Answer: Â a
The Conformations are different arrangements of atoms that can be converted into one another by rotation about which of the following?
(A). Â Covalent bond
(B). Â Triple bond
(C). Â Single bond
(D). Â Double bond
(E). None of these
Multiple Choice Question Answer:Â c
On the dilution, what is the specific conductance?
(A). Â Increases
(B). Â Â Remains same
(C). Â Decreases
(D). Â None of the mentioned
(E). None of these
Multiple Choice Question Answer: Â c
A specific conductivity reagent is ___________
(A). Â NaCl
(B). KCl
(C). Â HCl
(D). Â MgCl2
(E). None of these
Multiple Choice Question Answer: Â b
Which of the following is the internationally recommended unit for conductance?
(A). Â Dyne
(B). Â Siemens
(C). Â Ohm
(D). Â Poise
(E). None of these
Multiple Choice Question Answer: Â b
Which of the following is correct order of molar ionic conductivities of the following ions?
(A). Â Li+ < Na+ < Rb+ < K+Â Â
(B). Â Li+ < K+ < Rb+ < Na+
(C). Â Li+ < Rb+ < Na+ < K+
(D). Â Li+ < Na+ < K+ < Rb+
(E). None of these
Multiple Choice Question Answer:Â d
What are the infinity of intermediate conformations called?
(A). Â Staggered conformations
(B). Â Skew conformations
(C). Â Eclipsed conformations
(D). Â Gauche
(E). None of these
Multiple Choice Question Answer:Â b
The relative instability of any of the intermediate skew conformations is because of which of the following?
(A). Â Torsional strain
(B). Â Â Shear strain
(C). Â Longitudinal strain
(D ). Â Lateral strain
(E). None of these
Multiple Choice Question Answer: Â a
Which of the following is the equivalent conductance of 0.1 H2SO4offering a resistance of 50ohms when placed in a conductivity cell whose electrodes are 1cm apart with a cross-sectional area of 2cm2 at 250C?
(A). Â 100 S cm2 eq-1
(B). Â 1000 S cm2 eq-1
(C). 100 S cm2 eq-1
(D). Â 1 S cm2 eq-1
(E). None of these
Multiple Choice Question Answer: Â a
What does The Dilution mean?
(A). Â an increase in the amount of Electrolyte
(B). Â an increase in the amount of Solute
(C). Â an increase in the amount of Solvent
(D). Â All of the mentioned
(E). None of these
Multiple Choice Question Answer: Â c
The rotation about the (C2 – C3) carbon-carbon bond of n-butane requires how much energy?
(A). Â 50 kJ/mol
(B ). Â 100 kJ/mol
(C).  3 kJ/mol
(D). Â 10 kJ/mol
(E). None of these
Multiple Choice Question Answer: Â c
The potential energy of n-butane is minimum for which of the following?
(A). Â Skew conformations
(B). Â Â Eclipsed conformations
(C). Staggered conformations
(D). Â Gauche
(E). None of these
Multiple Choice Question Answer: Â c
The potential energy of n-butane is maximum for which of the following?
(A). Â Staggered conformations
(B). Skew conformations
(C). Â Gauche
(D). Â Eclipsed conformations
(E). None of these
Multiple Choice Question Answer: Â d
Both the anti and the gauche conformations are always free of the torsional strain.
(A). Â False
(B). Â True
(E). None of these
Multiple Choice Question Answer: Â b
The Gauche conformation is less stable because of which of the following?
(A).  Vander Waal’s repulsion
(B). Â Covalent bonding
(C). Â Hydrogen bonding
(D). Â Torsional strain
(E). None of these
Multiple Choice Question Answer: Â a
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