MEDIUM
10th CBSE
IMPORTANT
Earn 100

What happens when CO2 gas is bubbled through lime water? 

Important Questions on Chemical Reactions and Equations

MEDIUM
10th CBSE
IMPORTANT

Describe an activity to show that the combination reaction between quicklime and water is an exothermic reaction. 

MEDIUM
10th CBSE
IMPORTANT

Identify the substance oxidised & the substance reduced in the given chemical equation.

MnO2s +4HClconc. MnCl2aq +Cl2g +2H2O

Explain which is the reducing agent & oxidising agent.

MEDIUM
10th CBSE
IMPORTANT
Give an example of the following.
A reaction that takes place in the presence of sunlight.
 
HARD
10th CBSE
IMPORTANT

Give an example of the following.

A reaction which is a double displacement as well as a precipitation reaction.

MEDIUM
10th CBSE
IMPORTANT

Give an example of the following.

A Redox reaction. 

MEDIUM
10th CBSE
IMPORTANT

Write the balanced chemical equation for the following reaction & identify the type of reaction.

Nitrogen gas is treated with hydrogen gas in the presence of a catalyst at 773 K to form ammonia gas.

HARD
10th CBSE
IMPORTANT

Write the balanced chemical equation for the following reaction & identify the type of reaction.

Sodium hydroxide solution is treated with acetic acid to form sodium acetate & water.

HARD
10th CBSE
IMPORTANT

Write the balanced chemical equation for the following reaction & identify the type of reaction.

Ethanol is warmed with ethanoic acid to form ethyl acetate in the presence of concentrated H2SO4.