Q. 1 A4.5( 10 Votes )
Chlorine is prepared in the laboratory by the action of,
A. Zn and HCl
B. MnO2 and HC
C. CaCO3 and HCl
D. Pb(NO3)2 and HCl
Answer :
When hydrochloric acid (HCl) is added to potassium permanganate (MnO2) then chlorine gas is formed.
MnO2 + 4HCl → MnCl2 + Cl2 + H2O
On another hand Zn and HCl form Zinc chloride (ZnCl₂).
CaCO3 and HCl form calcium chloride (CaCl₂).
Pb(NO3)2 and HCl form Lead chloride (PbCl₂).
Rate this question :
Mathematics in Daily Life34 mins
Mathematics in Real Life34 mins
Resembling With Our Parents42 mins
Let's Check Our Preparation42 mins
Smart Revision | Let's Check Our Knowledge42 mins
Conserve Life Around Us42 mins
How to increase our memorising power?36 mins
Why Do We Resemble Our Parents32 mins
Quiz on Why do we resemble our parents?44 mins
Champ Quiz | Secret of the Cell Shape34 mins
Chlorine is prepared in the laboratory by the action of,
Karnataka Board - Science Part IAnswer the following:
Pure and dry chlorine gas is collected by the upward displacement of air. Give reason.
Karnataka Board - Science Part IAnswer the following:
Name the compound of chlorine
1. Which is an anesthetic?
2. Which is used as a refrigerant?
3. Which is a disinfectant?
4. Which is used to make pipes and tube?
5. which liberates chlorine on exposure to air.
Karnataka Board - Science Part IAnswer the following:
Mention four uses of chlorine.
Karnataka Board - Science Part I