The rate of reaction between two reactants A and B decreases by a factor of 4 if the concentration of reactant B is doubled. The order of this reaction with respect to reactant B is […]
How enzymes increases the rate of reaction
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(a) By lowering activation energy (b) By increasing activation energy (c) By changing equilibrium constant (d) By forming enzyme substrate complex
Correct Answer:
By lowering […]
For a first order reaction, the half -life period is independent of
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(a) first power of final concentration (b) cube root of initial concentration (c) initial concentration (d) square root of final […]
The given reaction 2FeCl₃ + SnCl₂ → 2FeCl₂ + SnCl₄ is an example of
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(a) third order reaction (b) first order reaction (c) second order reaction (d) none of these
Correct Answer: […]
The extra amount of energy, which the molecules of the reactants have to absorb, so that their energy becomes equal to the threshold energy, is called
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(a) kinetic energy (b) potential energy […]
According to law of mass action rate of a chemical reaction is proportional to
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(a) concentration of reactants (b) molar concentration of reactants (c) concentration of products (d) molar concentration of products
Hydrolysis of an ester in an alkaline medium is
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(a) first order reaction with molecularity two (b) first order reaction with molecularity one (c) second order reaction with molecularity one (d) second […]
The conductivity of strong electrolyte
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(a) does not change with dilution (b) depends upon density of electrolytes itself (c) increases on dilution slightly (d) decreases on dilution
Correct Answer:
increases on dilution […]
In the electrolysis of water, one faraday of electrical energy would evolve
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(a) one mole of oxygen (b) one g atom of oxygen (c) 8 g of oxygen (d) 22.4 litres of […]
The resistance of 1N solution of acetic acid is 250 ohm, when measured in a cell of cell constant 1.15 cm⁻¹. The equivalent conductivity in ohm⁻¹ cm equiv⁻¹ 1N acetic acid is
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