Login
Home
TOP
Send feedback
Login
Subjects
Chemistry CBSE Live product
Class 10
Chemical reaction and equations
PT1 Revision - Chemical reactions and equations
1.
Introduction to chemical reactions
Question:
2
m.
Choose the correct answer:
1.
Identify the correct statement from the following.
A chemical equation tells us about the substances involved in a reaction
A chemical equation informs us about the symbols and formulae of the substances involved in a reaction
A chemical equation tells us about the atoms or molecules of the reactants and products involved in a reaction
All of the above
2.
\(Zn\)(s) + \(H_2SO_4\)(aq) → \(ZnSO_4\)(aq) + \(H_2\)(g)
The above reaction is an example of ________.
change in pH
gas evolution
precipitation reaction
endothermic reaction
Login
or
Fast registration
Previous topic
Exit to the topic
Next task
Send feedback
Did you find an error?
Send it to us!