Advertisements
Advertisements
प्रश्न
Give reasons as to why - the electrolysis of acidulated water is considered to be an example of catalysis.
Give reason:
The electrolysis of acidulated water is considered to be an example of catalysis.
उत्तर १
Dilute sulphuric acid catalyses dissociation, so electrolysis of acidified water is considered an example of catalysis.
उत्तर २
Because of two reasons:
- It initiates the chemical reaction which increases the rate of reaction.
- Second, the same amount of acid is recovered at the end of the reaction.
APPEARS IN
संबंधित प्रश्न
State the observations at the anode and at the cathode during the electrolysis of copper sulphate solution using copper electrodes.
Electrolysis of aqueous sodium chloride solution will form ________ at the cathode. (Hydrogen gas / Sodium metal)
The following Question refer to the electrolysis of copper sulphate solution with copper electrodes:
(a) Compare the change in mass of the anode
(b) What is seen to happen to the colour of the copper sulphate solution if platinum electrodes are used? Explain the observation.
(c) What is the practical application of the electrolysis of copper sulphate solution? Briefly, describe one such application.
Write down the word or phrase from the given options that will correctly fill in the blanks in the following sentence:
Pure water consists entirely of ________
Aqueous solution of nickel sulphate contains \[\ce{Ni^{+2}}\] and \[\ce{SO^{-2}_{4}}\] ions.
- Which ion moves towards the cathode?
- What is the product at the anode?
Three different electrolytic cells, A, B and C are connected in separate circuits. Electrolytic cell A contains a sodium chloride solution. When the circuit is completed, a bulb in the circuit glows brightly. Electrolytic cell B contains an acetic acid solution and in this case, the bulb in the circuit glows dimly. The electrolytic cell C contains a sugar solution and the bulb does not glow. Give a reason for each of these observations.
Give reasons why in the electroplating of an article with silver, the electrolyte sodium argentocynide solution is preferred over silver nitrate solution.
An electrolyte which completely dissociates into ions is ______.
Copper sulphate solution is electrolysed using copper electrodes.
Write the equation for the reaction occurring at the Anode electrode.
Classify the following substance:
Ammonium hydroxide