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Recent questions in Chemistry
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JEEMAIN and NEET
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Chemistry
Chemistry
Some Basic concepts in Chemistry
Atomic Structure
Classification of Elements and Periodicity in Properties
Chemical Bonding and Molecular Structure
Chemical Thermodynamics
Equilibrium
Redox Reactions
Hydrogen
s-Block Elements
p-Block Elements
P-Block elements (Group-13 and Group-14)
Hydrocarbons
Some Basic principles of Organic chemistry
Environmental Chemistry
States of Matter: Liquids and Gases
States of Matter: Solid State
Solutions
Electrochemistry
Surface Chemistry
General Principals and Processes of Isolation of Metals
p-Block elements (Group-15 to Group-18)
d-and-f-Block Elements
Co-ordination Compounds
Halogens
Oxygen: Alchohols, Phenols and Ethers
Nitrogen
Polymers
Biomolecules
Chemistry in everyday life
Practical Chemistry
Chemical Kinetics
Purification and Characterisation of Organic Compounds
Oxygen: Aldehydes, Ketones and Carboxylic Acids
Which of the following facts regarding the movements of cations in the solution is correct?
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
galvanic-cells
easy
asked
Jul 21, 2014
by
sreemathi.v
1
answer
Which of the following statements is correct?
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
galvanic-cells
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Which of the following statements is correct?
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
galvanic-cells
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Which of the following statements is correct for a galvanic cell,written in a cell diagram?
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
galvanic-cells
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Which of the following statements is correct?
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
galvanic-cells
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
When a galvanic cell is written in a cell diagram then
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
galvanic-cells
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
The standard reduction potentials,$E^{\large\circ}$,for the half reactions are $Zn^{2+}+2e^-=Zn,E^{\large\circ}=-0.76V$ and $Fe^{2+}+2e^-=Fe,E^{\large\circ}=-0.41V$.The emf of the cell involving the reaction $Fe^{2+}+zn\rightarrow Zn^{2+}+Fe$ is
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
galvanic-cells
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
The reaction $\large\frac{1}{2}$$H_2(g)+AgCl(s)=H^+(aq)+Cl^-(aq)+Ag(s)$ occurs in the galvanic cell
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
galvanic-cells
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
The standard potentials at 298K for the following half reactions are given against each :$\begin{array}{1 1}Zn^{2+}(aq)+2e^-\leftrightharpoons Zn(s)\quad-0.762V&2H^+(aq)+2e^-\leftrightharpoons Cr(s)\quad 0.000V\\Cr^{3+}(aq)+3e^-\leftrightharpoons Cr(s)\quad -0.740V&Fe^{3+}(aq)+2e^-\leftrightharpoons Fe^{2+}(aq)\quad 0.770V\end{array}$.Which is the strongest reducing agent?
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
galvanic-cells
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Equivalent conductivity of $Fe_2(SO_4)_3$ is related to molar conductivity by the expression
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Which of the following expressions is correct?
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Molar conductivity of $Fe_2(SO_4)_3$ is given by
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Equivalent conductivity of $Fe_2(SO_4)_3$ is given by
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
The equilibrium constant of acetic acid in an aqueous solution of concentration $c$ is given by
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
The degree of dissociation of a weak electrolyte is given by
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Which of the following ion is expected to have highest value of molar conductivity at infinite dilution in an aqueous solution?
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Which of the following ion is expected to have least value of molar conductivity at infinite dilution in an aqueous solution?
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Which of the following ion is expected to have highest value of molar conductivity at infinite dilution in an aqueous solution?
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
For a dilute solution of a strong electrolyte,the variation of molar conductivity with concentration is given by
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Molar conductivity is defined as (where $k$ is the conductivity and $c$ is the molar concentration of electrolyte.)
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Molar conductivity is defined as (where $k$ is the conductivity,$G$ is conductance and $l$ is the distance between two electrodes of conductivity cell)
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Molar conductivity is defined as (where $k$ is the conductivity,$G$ is conductance,$l$ is the distance between two electrodes of conductivity cell and $V$ is the volume of solution containing 1 mol of electrolyte)
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
The cell constant of a conductivity cell is defined as
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
The unit of resistivity is
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
According to Ohm's law,(where the various symbols have their usual meanings)
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
The unit of molar conductivity is
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Which of the following is correct?
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
If one molecule of an electrolyte dissociates to produce $v_+$ number of cations $A^{z+}$ and $v_-$ number of anions $B^{z-}$,then the relation between molar conductivity $(\Lambda_m)$ and equivalent conductivity $(\Lambda_{eq})$ is
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Which of the following is not correct?
jeemain
chemistry
physical-chemistry
class12
ch3
electrochemistry
electrolytic-conduction
easy
asked
Jul 18, 2014
by
sreemathi.v
1
answer
The molecular weight of benzoic acid in benzene as determined by depression in freezing point method corresponds to
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
The degree of dissociation $(\alpha)$ of a weak electrolyte $A_xB_x$ is related to Van't hoff factor (i) by the experiment
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
colligative-properties
vant-hoff
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
A solution contains 0.1 mol of acetamide in 1 L of glacial acetic acid.When the solution is cooled the first crystals that appeared at the freezing point contain the molecules of
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
colligative-properties
depression-of-freezing-point
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Which of the following colligative properties can provide molar mass of proteins (or polymers or colloids) with greater precision?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
A semipermeable membrane used in the measurement of osmotic pressure of a solution allows the passage of
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Raoult's law is obeyed by each constituent of a binary liquid solution when
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
A binary liquid solution of chloroform and acetone is prepared.Which of the following statements correctly represents the behaviour of this liquid solution?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 17, 2014
by
sreemathi.v
1
answer
A binary liquid solution of n-heptane and ethyl alcohol is prepared.Which of the following statements correctly represents the behaviour of this liquid solution?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 17, 2014
by
sreemathi.v
1
answer
For a dilute solution containing a nonvolatile solute,the molar mass of solute evaluated from the osmotic pressure measurement is given as
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
medium
asked
Jul 17, 2014
by
sreemathi.v
1
answer
For a dilute solution containing a nonvolatile solute,the molar mass of solute evaluated from the elevation of boiling point is given by the expression
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
easy
asked
Jul 17, 2014
by
sreemathi.v
1
answer
For a dilute solution containing a nonvolatile solute,which of the following expressions correctly represents the molar mass of solute ?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
easy
asked
Jul 17, 2014
by
sreemathi.v
1
answer
For an ideal solution containing a nonvolatile solute,which of the following expressions is correctly represented?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
easy
asked
Jul 17, 2014
by
sreemathi.v
1
answer
For an ideal binary liquid solution with $p_A^* > p_B^*$,which of the following relations between $x_A$ (mole fraction of A in liquid phase) and $y_A$ (mole fraction of A in vapour phase) is correctly represented?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
easy
asked
Jul 17, 2014
by
sreemathi.v
1
answer
For an ideal solution containing a nonvolatile solute,which of the following expressions is correctly represented?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
easy
asked
Jul 17, 2014
by
sreemathi.v
1
answer
For an ideal solution containing a nonvolatile solute,which of the following expressions is correctly represented?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
easy
asked
Jul 17, 2014
by
sreemathi.v
1
answer
For an ideal solution containing a nonvolatile solute,which of the following expressions represents the vapour pressure of the solution?(where the subscripts 1 and 2 stand for solvent and solute, respectively)
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
easy
asked
Jul 17, 2014
by
sreemathi.v
1
answer
The plot of $1/x_A$ versus $1/y_A$ (where $x_A$ and $y_A$ are the mole fractions of A in liquid and vapour phases,respectively) is linear with slope and intercept respectively are given as
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
easy
asked
Jul 17, 2014
by
sreemathi.v
1
answer
Which of the following plots correctly represents the behaviour of an ideal binary liquid solution?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
easy
asked
Jul 17, 2014
by
sreemathi.v
1
answer
Which of the following plots represents the behaviour of an ideal binary liquid solution ?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
easy
asked
Jul 17, 2014
by
sreemathi.v
1
answer
Which of the following plots does not represent the behaviour of an ideal binary liquid solution?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
easy
asked
Jul 17, 2014
by
sreemathi.v
1
answer
For a binary ideal liquid solution,the total pressure of the solution is given as
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
easy
asked
Jul 17, 2014
by
sreemathi.v
1
answer
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