Login
Home
TOP
Send feedback
Login
Subjects
Chemistry CBSE Live product
Class 10 (2025-26)
Chemical reaction and equations
Annual Revision III - Chemical reactions and equations
1.
Introduction to chemical reactions
Question:
2
m.
Identify the correct answer:
1.
When the aqueous solution obtained from \(MgO\) is tested with litmus, the red litmus turns blue. This confirms:
\(Mg(OH)_2\) is basic
\(MgO\) is acidic
\(MgO\) is neutral
\(Mg(OH)_2\) is unstable
2.
\(Zn\)(s) + \(H_2SO_4\)(aq) → \(ZnSO_4\)(aq) + \(H_2\)(g) is an example of:
Endothermic reaction
Evolution of gas
Precipitation reaction
Change in colour
Login
or
Fast registration
Previous theory
Exit to the topic
Next task
Send feedback
Did you find an error?
Send it to us!
