EASY
7th ICSE
IMPORTANT
Earn 100

What happens when the wax in the form of a wax candle is burned?

Important Questions on Language of Chemistry

MEDIUM
7th ICSE
IMPORTANT

Observe the following equations:

H2+OH2O

2N+3H22NH3

Are the above equations are correct? Explain

MEDIUM
7th ICSE
IMPORTANT
Why does the reaction between quicklime and water to form the slaked lime makes the container hot?
MEDIUM
7th ICSE
IMPORTANT
Why does effervescence are observed in the reaction of sodium carbonate with dilute hydrogen chloride?
MEDIUM
7th ICSE
IMPORTANT
The reaction of ammonium chloride with sodium hydroxide gives a strong pungent smell. What is the reason of this pungent smell in the reaction?
MEDIUM
7th ICSE
IMPORTANT
State one characteristic of the chemical reaction which takes place when dilute sulphuric acid is added to barium chloride solution.
MEDIUM
7th ICSE
IMPORTANT
State one characteristic of the chemical reaction which takes place when lemon juice is added gradually to potassium permanganate solution.
EASY
7th ICSE
IMPORTANT
State one characteristic of the chemical reaction which takes place when dilute sulphuric acid is added to barium chloride solution.
EASY
7th ICSE
IMPORTANT
State one characteristic of the chemical reaction which takes place when quicklime is treated with water.