MEDIUM
9th ICSE
IMPORTANT
Earn 100

What happens when steam is passed over red hot coke?

Important Questions on Study of First Element-Hydrogen

MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 24
Name two metals, which can displace hydrogen from acid as well as alkali.
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 26
Write the chemical reactions showing amphoteric nature of zinc.
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 28

How can production of hydrogen from water gas be increased by using water gas shift reaction?

MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 29
How does the atomic hydrogen or oxy-hydrogen torch function for cutting and welding purposes ? Explain.
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 30
Give an example each of oxidation and reduction reaction on the basis of electronegative and electropositive element.
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 31
Justify the position of hydrogen in the periodic table.
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 32
Why is it safe to store acid in a copper container but not to store in an iron container?
EASY
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 33

How is hydrogen obtained from dilute sulphuric acid.