HARD
10th Bihar Board
IMPORTANT
Earn 100

What happens when zinc is placed in iron sulphate solution

Write the chemical equation of the reaction. 

Important Questions on Chemical Reactions and Equations

EASY
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 1 - Chemical Reactions and Equations>Bihar Board-2018>Q 1

Na2SO4(aq) + BaCl2 → BaSO4(s) + 2NaCl(aq)

The above chemical equation is:

EASY
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 1 - Chemical Reactions and Equations>Bihar Board-2018>Q 2
What does one mean by exothermic and endothermic reactions?
EASY
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 1 - Chemical Reactions and Equations>Bihar Board-2018>Q 3
What is a combination reaction?
EASY
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 1 - Chemical Reactions and Equations>Bihar Board-2018>Q 4

What is decomposition reaction?

EASY
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 1 - Chemical Reactions and Equations>Bihar Board-2018>Q 5
What is displacement reaction?
EASY
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 1 - Chemical Reactions and Equations>Bihar Board-2018>Q 6
What is double displacement reaction?
EASY
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 1 - Chemical Reactions and Equations>Bihar Board-2019>Q 7
The gain of oxygen by a substance during chemical reaction is called
MEDIUM
10th Bihar Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 1 - Chemical Reactions and Equations>Bihar Board-2019>Q 8
Why does the colour of copper sulphate solution change when an iron nail is dipped in it?