P-Block Elements Ques 507

Question: Often a ground glass stopper gets stuck in the neck of a glass bottle containing $ NaOH $ solution. This is due to:

Options:

A) The presence of dirt particles in between.

B) The formation of solid silicate in between by the reaction of $ SiO_2 $ of glass with $ NaOH. $

C) The formation of $ Na_2C{{O}_3} $ in between by the reaction of $ CO_2 $ of air and $ NaOH. $

D) Glass contains a boron compound which forms a precipitate with the $ NaOH $ solution.

Show Answer

Answer:

Correct Answer: B

Solution:

$ SiO_2+2NaOH\to \underset{Sodiumsilicate}{\mathop{Na_2SiO_3}}+H_2O $



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