Advertisements
Advertisements
Question
Which of the following statement is incorrect for a chemical reaction?
Options
Heat may be given out but never absorbed.
Sound may be produced.
A colour change may take place.
A gas may be evolved.
Advertisements
Solution
Heat may be given out but never absorbed.
Explanation:
Heat may be given out or absorbed during a chemical reaction.
APPEARS IN
RELATED QUESTIONS
The chemical name of baking soda is ______.
Complete and balance the following chemical equations
Na + H2 O →
Fill in the blank:
The basic conditions necessary for a chemical reaction is _______
What is the reaction called when oxidation and reduction take place simultaneously? Explain with one example.
When electric current is passed through acidulated water ______ of water takes place.
Define a photochemical reaction.
NPK are the primary nutrients for plants.
Acid rain is a result of ______.
What is thermochemical reactions?
Write the effects of chemical reactions.
