HARD
9th ICSE
IMPORTANT
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Write the reaction of steam with red-hot iron.

Important Questions on Study of the First Elements-Hydrogen

MEDIUM
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 6 - Study of the First Elements-Hydrogen>EXERCISE 6(A)>Q 10
In the reaction of steam with a red-hot iron, why is this reaction considered a reversible reaction?
EASY
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 6 - Study of the First Elements-Hydrogen>EXERCISE 6(A)>Q 10
In the reaction of steam with a red-hot iron, how can the reaction proceed continuously?
HARD
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 6 - Study of the First Elements-Hydrogen>EXERCISE 6(A)>Q 11
Why zinc and aluminium are considered to have a unique nature. Give balanced equations to support your answer.
HARD
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 6 - Study of the First Elements-Hydrogen>EXERCISE 6(A)>Q 12
Write the balanced equation for the following:

Iron reacts with dilute HCl.

HARD
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 6 - Study of the First Elements-Hydrogen>EXERCISE 6(A)>Q 12
Write the balanced equation for the following:

Zinc reacts with caustic soda solution.

HARD
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 6 - Study of the First Elements-Hydrogen>EXERCISE 6(A)>Q 12

Write the balanced equation for the following:

Lead reacts with potassium hydroxide.

HARD
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 6 - Study of the First Elements-Hydrogen>EXERCISE 6(A)>Q 12

Write the balanced equation for the following:

Aluminium reacts with fused sodium hydroxide.

HARD
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 6 - Study of the First Elements-Hydrogen>EXERCISE 6(A)>Q 13

Write the balanced equation and give your observation when the following metal reacts:

Sodium with cold water.