Q. 74.0( 43 Votes )

2 mL of sodium hy

Answer :

2ml of sodium hydroxide reacts with zinc metal to give a gas. The gas formed is Hydrogen (H2) and the compound formed is sodium zincate. The reaction is



To test the presence of the gas, bring the mouth of the test tube near a burning matchstick. If the flame extinguishes with a ‘pop’ sound, then the presence of Hydrogen gas is confirmed.


When Zn reacts with dilute solution of a strong acid, H2 gas will be evolved.


Example:


OR


The salt used is sodium bicarbonate or sodium hydrogen carbonate. Its chemical formula is NaHCO3.


Sodium hydrogen carbonate can be formed by using NaCl as a base raw material. The reaction is given as:



NaHCO3 is used -


(i)- In soda-acid fire extinguishers.


(ii)- as an ingredient in antacids.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
All GrammarAll GrammarAll Grammar41 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :
When a mixture of gaLakhmir Singh & Manjit Kaur - Chemistry

Dry litmus paper Science Lab Manual

Which of the followiLakhmir Singh & Manjit Kaur - Chemistry