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 $
