The rate constant of the reaction A → B is 0.6 ˣ 10⁻³ mol per second.
The rate constant of the reaction A → B is 0.6 ˣ 10⁻³ mol per second. If the concentration of A is 5 M, then concentration of B after 20 minutes is
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Electrochemistry and Chemical Kinetics
When initial concentration of a reactant is doubled in a reaction, its half-life
When initial concentration of a reactant is doubled in a reaction, its half-life period is not affected.The order of the reaction is
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(a) First (b) Second (c) More than zero but less […]
The activation energy of a reaction can be determined from the slope
The activation energy of a reaction can be determined from the slope of which of the following graphs
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(a) lnK/T vs.T (b) ln K vs.1/T (c) T/ln K vs.1/T (d) ln K […]
A device that converts energy of combustion of fuels like hydrogen and methane,
A device that converts energy of combustion of fules like hydrogen and methane,directly into electrical energy is known as:
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(a) Electrolytic cell (b) Dynamo (c) Ni-Cd cell (d) Fuel Cell
Correct Answer:
Fuel […]
When 0.1 mol MnO₄²⁻ is oxidised the quantity of electricity required to completely
When 0.1 mol MnO₄²⁻ is oxidised the quantity of electricity required to completely oxidise MnO₄²⁻ to MnO₄⁻ is
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(a) 96500 C (b) 2 ˣ 96500 C (c) 9650 C (d) 96.50 C
The weight of silver (at.wt. = 108) displaced by a quantity of electricity
The weight of silver (at.wt. = 108) displaced by a quantity of electricity which displaces 5600 mL of O₂ at STP will be
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(a) 5.4 g (b) 10.8 g (c) 54.0 g […]
The standard electrode potential is measured by
The standard electrode potential is measured by
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(a) electrometer (b) voltmeter (c) pyrometer (d) galvanometer
Correct Answer:
voltmeter
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Equivalent conductances of Ba²⁺ and Cl⁻ ions are 127 and 76 ohm⁻¹ cm⁻¹ eq⁻¹
Equivalent conductances of Ba²⁺ and Cl⁻ ions are 127 and 76 ohm⁻¹ cm⁻¹ eq⁻¹ respectively. Equivalent conductance of BaCl₂ at infinite dilution is
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(a) 139.5 (b) 101.5 (c) 203 (d) 279
Correct […]
In the electrolysis of aqueous solution of CuSO₄ using copper electrodes, the
In the electrolysis of aqueous solution of CuSO₄ using copper electrodes, the process that takes place at the anode is
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(a) SO₄²⁻ → SO₄ +2e⁻ (b) Cu → Cu⁺ + e⁻ (c) […]
Which of the following statements is true for the electrochemical Daniel cell
Which of the following statements is true for the electrochemical Daniel cell
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(a) Electrons flow from copper electrode to zinc electrode (b) Current flows from zinc electrode to copper electrode (c) Cations […]