MEDIUM
8th ICSE
IMPORTANT
Earn 100

Which of the following is not an allotropic form of carbon?

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Important Questions on Sample Test Paper 2

EASY
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 11 - Sample Test Paper 2>Exercise 1>Q B
_____ is a reaction which proceeds in the direction towards the formation of products only.
MEDIUM
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 11 - Sample Test Paper 2>Exercise 1>Q B
_____are reactions which involve alteration of the rate of chemical reaction in the presence of external substance.
MEDIUM
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 11 - Sample Test Paper 2>Exercise 1>Q B
_____ of water proved that water is a compound and not an element. (Colour / Odour / Properties)
EASY
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 11 - Sample Test Paper 2>Exercise 1>Q B
The different forms of the same element are known as_____.
HARD
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 11 - Sample Test Paper 2>Exercise 1>Q D

Explain the following: 

Hydrogen is included in the activity series of metals, even though it is not a metal.

HARD
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 11 - Sample Test Paper 2>Exercise 1>Q D

Explain the following:

Enzymes act as catalysts in the human body processes.

HARD
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 11 - Sample Test Paper 2>Exercise 1>Q E
What is a chemical reaction? Explain any three types of chemical reactions.
HARD
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 11 - Sample Test Paper 2>Exercise 1>Q E
Explain the Bosch process. Draw a suitable diagram for the process.