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Chemistry
3. Metals and Non-metals
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Q23 of 65 Page 18

An electrolytic cell consists of

(i) positively charged cathode


(ii) negatively charged anode


(iii) positively charged anode


(iv) negatively charged cathode

An electrolytic cell consists of positively charged anode and negatively charged cathode. Positively charged ions (cations) are deposited at negatively charged cathode. Negatively charged ions (anions) are deposited at positively charged anode.

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21

2mL each of concentrated HCl, HNO3 and a mixture of concentrated HCl and concentrated HNO3 in the ratio of 3 : 1 were taken in test tubes labelled as A, B and C. A small piece of metal was put in each test tube. No change occurred in test tubes A and B but the metal got dissolved in test tube C respectively. The metal could be

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An alloy is

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During electrolytic refining of zinc, it gets

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An element A is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identify the element from the following.

Questions · 65
3. Metals and Non-metals
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