MEDIUM
8th ICSE
IMPORTANT
Earn 100

Draw a neat and well-labelled diagram for the laboratory preparation of hydrogen.

Important Questions on Hydrogen

EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 7 - Hydrogen>Exercise>Q 2
Hydrogen molecule is monovalent.
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 7 - Hydrogen>Exercise>Q 2
The removal of hydrogen from a substance is called reduction.
MEDIUM
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 7 - Hydrogen>Exercise>Q 2
Nitric acid can not be used to prepare hydrogen by its action on active metals.
MEDIUM
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 7 - Hydrogen>Exercise>Q 8
Hydrogen is a good reducing agent. What do you understand by the above statement? Explain with the help of copper oxide as an example.
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 7 - Hydrogen>Exercise>Q 12
Define reduction.
MEDIUM
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 7 - Hydrogen>Exercise>Q 12
Define redox reaction.
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 7 - Hydrogen>Exercise>Q 13
The metal which reacts with cold water to produce hydrogen is
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 7 - Hydrogen>Exercise>Q 13
Hydrogen is responsible for producing