HARD
7th ICSE
IMPORTANT
Earn 100

Give an example of a reaction in which evolution of gas is observed. Also, write the word and chemical equation for it.

Important Questions on The Language of Chemistry

HARD
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 5 - The Language of Chemistry>CHECKPOINT>Q 3
Explain the difference between endothermic and exothermic reactions. Give examples.
MEDIUM
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 5 - The Language of Chemistry>CHECKPOINT>Q 4
What are the conditions for a chemical reaction to take place? 
HARD
7th ICSE
IMPORTANT
Inspired Chemistry-7>Chapter 5 - The Language of Chemistry>Think and Answer>Q 1
When milk is boiled, bubbles are formed. When milk is set to form curd and left outside for a few days, bubbles are formed again. In which of these cases has a chemical reaction taken place? How can you say?