MEDIUM
9th ICSE
IMPORTANT
Earn 100

Give equations to express the reaction between:

calcium and water.

Important Questions on Study of the First Group Element Hydrogen

MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 7 - Study of the First Group Element Hydrogen>Questions>Q 19

Give equations to express the reaction between:

steam and red hot coke.

MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 7 - Study of the First Group Element Hydrogen>Questions>Q 20

How can hydrogen be made to combine with:

nitrogen

MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 7 - Study of the First Group Element Hydrogen>Questions>Q 20

How can hydrogen be made to combine with:

  • Chlorine
MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 7 - Study of the First Group Element Hydrogen>Questions>Q 20

How can hydrogen be made to combine with:

(c) sulphur

MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 7 - Study of the First Group Element Hydrogen>Questions>Q 20

How can hydrogen be made to combine with:

oxygen

MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 7 - Study of the First Group Element Hydrogen>Questions>Q 21

What would happen if the following are kept in a closed vessel at over 400°C?

Iron fillings and steam.

MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 7 - Study of the First Group Element Hydrogen>Questions>Q 21

What would happen if the following are kept in a closed vessel at over 400°C?

Hydrogen and magnetic oxide of iron.

MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 7 - Study of the First Group Element Hydrogen>Questions>Q 22

A small piece of calcium metal is put into a small trough containing water. There is effervescence and white turbidity.

Name the gas formed in the reaction. How would you test the gas?