Mohan was worried due to blocked drain in the front of his house so he called the workers of Municipal Corporation to solve this problem. He observed that they used a mixture of dil. NaOH and aluminium pieces to open drain. Give the reason behind this method of opening drain as used by workers.
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Answer:
NaOH reacts with Al to evolve H2 gas. Thus the pressure of the gas produced can be used for clogged drains.
2Al(s) + 2NaOH(aq) + 2H2O(l) ——-> 2NaAlO2(aq) + 3H2(g)
Explanation:
A mixture of dilute NaOH and aluminium pieces is used to open drain as Aluminium pieces dissolve in dilute NaOH to evolve dihydrogen gas whose presence can be used to open clogged drain.
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