MEDIUM
10th ICSE
IMPORTANT
Earn 100

An aluminium vessel is used to store ferrous sulphate solution. It is observed that in few days holes appear in the vessel. Explain the observation and give the chemical equation in support of your answer.

Important Questions on Chemical Reactions and Equations

HARD
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>Practice Questions>Q 6
A student adds water to quicklime taken in a beaker. He feels the beaker turning hot. Why does this happen ? Write a chemical equation for the reaction.Sate the type of this reaction.
HARD
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>Practice Questions>Q 7
2g of ferrous sulphate crystals were heated in a hard glass test -tube and observation were recorded.
What was the successive colour change?
HARD
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>Practice Questions>Q 7
2g of ferrous sulphate crystals were heated in a hard glass test -tube and observation were recorded.
Identify the liquid droplets collected on the cooler parts of the test tube.
HARD
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>Practice Questions>Q 7
2g of ferrous sulphate crystals were heated in a hard glass test -tube and observation were recorded.
What type of odour is observed on heating ferrous sulphate crystals?
HARD
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>Practice Questions>Q 7
2g of ferrous sulphate crystals were heated in a hard glass test -tube and observations were recorded.
Name the products obtained on heating ferrous sulphate crystals.
 
HARD
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>Practice Questions>Q 8
Name the products obtained by the electrolysis of water mentioning the electrode at which each of these are collected. Why is the volume of the product collected at one electrode two times of that collected at the other electrode? Explain.
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>Practice Questions>Q 9
Give one equation for the decomposition reactions where energy is supplied in form of heat. 
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 1 - Chemical Reactions and Equations>Practice Questions>Q 9
Give one equation each for the decomposition reactions where energy is supplied in the form of light.