Advertisements
Advertisements
Question
How can you prove that hydrochloric acid contain :
Hydrogen
Advertisements
Solution
On reaction with metals, hydrochloric acid forms respective chlorides and liberates hydrogen.
Zn + 2HCI → ZnCl2 + H2 ↑
APPEARS IN
RELATED QUESTIONS
How will you prepare hydrochloric acid in laboratory? OR
Describe briefly the method employed to dissolve hydrogen chloride gas in water as it is prepared. What is the purpose of funnel while preparing hydrochloric acid from HCI gas?
Explain, why (or give reasons for)
Only a very dilute solution of hydrogen chloride in water can be concentrated by boiling the solution while a very concentrated solution would become less concentrated when boiled.
Fill in the blank:
Aqua-regia is a mixture of ___________ .
Fill in the blank:
___________ agent converts hydrochloric acid to chlorine.
Write equation for the reaction between hydrochloric acid of the following: Manganese dioxide
What wilI you observed when concentrated HCI is added to lead (IV) oxide and warmed ?
State one reason why tap water is not used to prepare a solution of silver nitrate in the laboratory.
Write a balanced equation for the reaction of zinc and dilute hydrochloric acid.
In the laboratory preparation of hydrochloric acid, HCl gas is dissolved in water.
- Draw a diagram to show the arrangement used for the absorption of HCl gas in water.
- State why such an arrangement is necessary? Give two reasons for the same.
- Write the chemical equation for the laboratory preparation of HCl gas when the reaction is:
- Below 200°C
- Above 200°C
State one appropriate observation of the following:
Copper sulphate is treated with dilute hydrochloric acid.
