MEDIUM
10th CBSE
IMPORTANT
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What happens when magnesium reacts with oxygen in air? Give a balanced equation.

Important Questions on Chemical Reactions and Equations

MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>PAPER - PEN TEST : 1>Q 10
Why should a magnesium ribbon be cleaned before burning in air?
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>PAPER - PEN TEST : 1>Q 11
What is the colour of the precipitate formed when lead nitrate reacts with potassium iodide? (Greenish-blue / Deep yellow / Pale green)
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>PAPER - PEN TEST : 1>Q 12
What are the precautions you should follow while performing an experiment of burning a magnesium ribbon?
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>PAPER - PEN TEST : 2>Q 1
Define a precipitate.
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>PAPER - PEN TEST : 2>Q 2
What are the ways of forming the precipitate?
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>PAPER - PEN TEST : 2>Q 3
Give an example of a precipitate reaction.
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>PAPER - PEN TEST : 2>Q 4
What happens when zinc granules react with dilute sulphuric acid?
HARD
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 1 - Chemical Reactions and Equations>PAPER - PEN TEST : 2>Q 5
Differentiate exothermic and endothermic reactions with an example for each.