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Chapter- 14(chemical effects of electric current), Question answers, Q1. Name two good conductors, Ans Two good conductors are iron, copper, Q2. Name two insulators., Ans Two insulators are rubber and wood., Q3. Name the particle that is responsible for conduction in solids., Ans Electrons are responsible for conduction in solids., Q4. Name the particles that are responsible for conduction in liquids., Ans ions are responsible for conduction in liquids., Q5. What is the direction of current in a circuit?, Ans The direction of current is from positive terminal to negative terminal in a circuit., Q6. Name a metal which is coated iron to prevent rusting., Ans zinc metal is coated iron to prevent rusting., Q7. What are the products of electrolysis of water?, Ans The products of electrolysis of water are hydrogen gas and Oxygen gas., Q8. What happens to an electrolyte during electrolysis?, Ans Positively charged ions move to the negative electrode during electrolysis. Negatively charged ions move to the positive electrode during electrolysis., F. Differentiate between the following pairs, 1. Conductors and insulators, Difference Between Conductors and Insulators, Conductos, 1.A conductor allows current to flow easily through it., 2.Electric charge exists on the surface of conductors., 3. For example :- metals like iron, copper, Insulators, 1.An Insulator doesn't allow current to flow through it., 2.Electric charges are absent in insulators., 3.For example:- Rubber, wood etc, 2. Cations and anions, cations are positive ions—they are positively charged because they have lost one or more electrons, Anions are negative ions—they are negatively charged because they have gained one or more electrons, G. Define each of the following in one sentence, 1. Electrolysis- Breaking down of an electrolyte, by electric current, into simpler substances., 2. Electroplating- coating one metal over another by the process of electrolysis., 3. Semiconductors- There are few elements which have properties of both metals and nonmetals are called semiconductors., 4. Electrolyte : A solution which allows the current pass through it., 5. Insulators: An Insulator doesn't allow current to flow through it.