Content protected from screenshots
GKFix.in
Current Affairs
General Knowledge
Categories
Concept Builder Quiz
About Us
Start Quiz
GKFix.in
Home
Current Affairs
General Knowledge
Categories
Concept Builder Quiz
Start Quiz
GKFix MCQ Question
Test your knowledge and learn something new
Home
P BLOCK ELEMENTS
Question #42710
Back to Home
View All P BLOCK ELEMENTS Questions
20 Views
Question
How is dioxygen (O₂) prepared in a typical laboratory setting according to the summary?
A. By electrolysis of water
B. By fractional distillation of liquid air
C. By heating KClO₃ in the presence of MnO₂
D. By heating KMnO₄ alone
Check Answer
Share on Twitter
Share on Facebook
Copy Link
Related Questions
Which of the following acids would be expected to be the strongest reducing agent based on the infor...
11
Which characteristic of sulphuric acid is primarily responsible for the exothermic reaction when wat...
12
What is the physical state and colour of Nitrogen dioxide (NO2) at room temperature?
21
Why was the Odisha Police recruitment exam for sub-inspectors postponed in October 2025?
(Current Affairs)
41
What is the proposed new entry fee for adults at Delhi Zoo, if the recent proposal is approved?
(Current Affairs)
43