Which of the following is not an application of the chemical effect of electric current ?
(a) electroplating of metals
(b) purification of metals
(c) decomposition of elements
(d) decomposition of compounds

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Solution

(c) decomposition of elements

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The process of purification of an impure metal is like :
(a) electroplating a metal on the same type of metal
(b) electroplating a metal on another type of metal
(c) producing a chemical compound by electrolysis
(d) decomposing a chemical compound by electrolysis.

Which of the following effects is not produced by the chemical reactions brought about by an electric current ?
(a) bubbles of gases on electrodes
(b) deposits of metals on electrodes
(c) change in colour of solution
(d) formation of a precipitate

An MCB which cuts off the electricity supply in case of short-circuiting or overloading works on the :

(a) chemical effect of current

(b) heating effect of current

Q. The process of chemical decomposition produced by passing an electric current through a liquid is known as:

__ is the process of decomposition of a chemical compound in aqueous solutions or in molten state accompanied by the chemical change by using direct electric current.

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Which of the following is not an application of the chemical effect of electric current ? (a) electroplating of metals (b) purification of metals (c) decomposition of elements (d) decomposition of compounds

(c) decomposition of elements

Which of the following is not an application of the chemical effect of electric current ?
(a) electroplating of metals
(b) purification of metals
(c) decomposition of elements
(d) decomposition of compounds