EASY
10th CBSE
IMPORTANT
Earn 100

Explain the following in terms of gain or loss of oxygen with two examples each.

  • Reduction

Important Questions on Chemical Reactions And Equations

EASY
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Chemical Reactions And Equations>NCERT Section>Q 25
A shiny brown coloured element 'X' on heating in air becomes black in colour. Name the element 'X' and the black coloured compound formed.
MEDIUM
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Chemical Reactions And Equations>NCERT Section>Q 26
Why do we apply paint on iron articles?
EASY
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Chemical Reactions And Equations>NCERT Section>Q 27
Oil and fat containing food items are flushed with nitrogen. Why?
EASY
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Chemical Reactions And Equations>NCERT Section>Q 28
Explain the term corrosion with an example.
EASY
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Chemical Reactions And Equations>NCERT Section>Q 28
Explain the term 'rancidity' with an example.
EASY
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Chemical Reactions And Equations>EXERCISE>Q 1
When lead nitrate reacts with potassium iodide, yellow precipitate of 
EASY
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Chemical Reactions And Equations>EXERCISE>Q 2
When ferrous hydroxide reacts with hydrochloric acid, _____ and H2O are produced.
EASY
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Chemical Reactions And Equations>EXERCISE>Q 3
Which of the following reactions involves the combination of two elements?