Question
What is an ionic bond? Give two suitable examples explain the difference between ionic and covalent bond.
✓
Answer
The bond which is formed by transfer of electron is called ionic bond.
| S. No. | Ionic bond | Covalent bond |
| i. | It is formed by transfer of electrons. | It is formed by sharing of electrons. |
| ii. | It is formed metal and non metals. e.g.  | It can be formed between two non metals also. e.g.  |
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Ethyl acetate is formed by the reaction between ethanol and acetic acid and the equilibrium is represented as :
$CH _3 COOH ( l )+ C _2 H _5 OH ( l ) \rightleftharpoons CH _3 COOC _2 H _5( l )$$+ H _2 O ( l )$
(i) Write the concentration ratio (reaction quotient) $Q_c$, for this reaction (note : water is not in excess and is not a solvent in this reaction).
(ii) At 293 K , if one starts with 1.00 mol of acetic acid and 0.18 mol of ethanol, there is 0.171 mol of ethyl acetate in the final equilibrium mixture. Calculate the equilibrium constant.
(iii) Starting with 0.5 mol of ethanol and 1.0 mol of acetic acid and maintaining it at $293 K, 0.214 mol$ of ethyl acetate is found after sometime. Has equilibrium been reached?
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(i) Write the concentration ratio (reaction quotient) $Q_c$, for this reaction (note : water is not in excess and is not a solvent in this reaction).
(ii) At 293 K , if one starts with 1.00 mol of acetic acid and 0.18 mol of ethanol, there is 0.171 mol of ethyl acetate in the final equilibrium mixture. Calculate the equilibrium constant.
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Note: Given that the molar mass of the oxide is 159.69g mol-1
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Why it is more appropriate to write these reactions as :
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b. $O _3(g)+ H _2 O _2( I ) \longrightarrow H _2 O ( I )+ O _2(g)+ O _2(g)$
Also suggest a technique to investigate the path of the above (a) and (b) redox reactions.
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2. 52 u of He
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