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Question
Q.19. (a) A dry pallet of common base 'X', when kept in open air absorbs moisture and turns sticky. The compound is also a by-product of chlor-alkali process. Identify 'X'. What type of reaction occurs when 'X' is treated with strong acid ? Write a balanced chemical equation for such reaction.
(b) Can we store the base 'X' in an aluminium container? Give reason in support of your answer.
(b) Can we store the base 'X' in an aluminium container? Give reason in support of your answer.
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Solution
Answer 19:
(a) Dry pellet of "X" is of Sodium Hydroxide (NaOH).
The reaction with strong acid is as follows:
NaOH (aq) + HCl (aq) NaCl(aq) + H2O(l)
This is a neutralisation reaction.
(b) No, we cannot store NaOH in an aluminium container because, Na is more reactive than Al, it corrodes the container.
2 Al (s) + 2 NaOH (aq) + 6 H2O (l)2 Na[Al(OH)4] (aq) + 3 H2(g)
(a) Dry pellet of "X" is of Sodium Hydroxide (NaOH).
The reaction with strong acid is as follows:
NaOH (aq) + HCl (aq) NaCl(aq) + H2O(l)
This is a neutralisation reaction.
(b) No, we cannot store NaOH in an aluminium container because, Na is more reactive than Al, it corrodes the container.
2 Al (s) + 2 NaOH (aq) + 6 H2O (l)2 Na[Al(OH)4] (aq) + 3 H2(g)
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