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Consider the following chemical equation :2NaOH + H2SO4 \(\longrightarrow\) \(Na_2SO_4 + 2H_2O\)The informations conveyed by this equation are :I. NaOH reacts with H2SO4 to produce \(Na_2SO_4\) and water.II. For every one molecule of H2SO4, two molecules of NaOH are required.III. Acids and bases are non-ionic in nature.IV. This is not a redox reaction.(a) I and II, IV(b) II and III(c) III and IV(d) I and IV |
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Answer» Correct answer is (a) I, II and IV 2 NaOH + H2SO4 \(\longrightarrow\) Na2SO4 + 2H2O (i) According to given chemical equation, we can clearly see that NaOH reacts with H2SO4 to produce Na2SO4 and water (ii) The given chemical equation is a balance equation. we can clearly see that, one molecule of H2SO4, reacts with 2 molecule of NaOH and produced one molecule of Na2SO4 and two molecule of water (H2O). (iii) acids and bases are ionic in nature, in equations solution, they decomposed like that - NaOH \(\overset{H_2O}{\longrightarrow}\) \(Na^{+}(aq) + \overset{\ominus}{OH}(aq)\) \(H_2SO_4\, \overset{H_2O}{\longrightarrow}\,H_3O^+ +HSO_4{^-}{(aq)}\) (iv) The given reaction is a example of double displacement reaction, also you can say that it is a neutralization reaction. There is no change in oxidation state of any atoms. that is why it is not a redox reaction. |
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