Skip to content
MCQtimes.com
GK
Pakistan Studies
Current Affairs
Islamic Studies
English
MCQtimes.com
Toggle Menu
Atoms Molecules Mixtures and Compounds
Home
/
General Science
/
General Science for Class 6
/
Atoms Molecules Mixtures and Compounds
- Page 9
Show/Hide Answers
Atoms Molecules Mixtures and Compounds
Air is mixture of
gases
solution
compound
mixture
Author:
rikazzz
Comment
Atoms Molecules Mixtures and Compounds
A substance that is broken down into simpler substance by the means of chemical, not physical, is known as
atom
compound
molecule
solution
Author:
rikazzz
Comment
Atoms Molecules Mixtures and Compounds
The most common source of carbon is
sea
coal deposits
mountain
land
Author:
rikazzz
Comment
Atoms Molecules Mixtures and Compounds
The process used to obtain the solute from a solution is known as
sublimation
distillation
filtration
evaporation
Author:
rikazzz
Comment
Atoms Molecules Mixtures and Compounds
Iodine crystals and carbon dioxide are examples of sublimates that sublime at
room temperature
boiling point
freezing point
none of them
Author:
rikazzz
Comment
Atoms Molecules Mixtures and Compounds
The gas used in respiration and manufactured in photosynthesis is
carbon
hydrogen
oxygen
nitrogen
Author:
rikazzz
Comment
Atoms Molecules Mixtures and Compounds
A molecule of pure water contains one atom of oxygen and two atoms of
nitrogen atom
carbon atom
hydrogen atoms
neon atom
Author:
rikazzz
Comment
Atoms Molecules Mixtures and Compounds
Hydrogen is also used in
paint industries
fertilizer
rocket fuel
all of them
Author:
rikazzz
Comment
Atoms Molecules Mixtures and Compounds
In first stage, crude oil is heated and changed into
plasma
gas
solid
liquid
Author:
rikazzz
Comment
Atoms Molecules Mixtures and Compounds
A process in which a solid directly changes its state to gas without passing through liquid form is known as
evaporation
sublimation
distillation
chromatography
Author:
rikazzz
Comment
Page navigation
Previous Page
Previous
1
…
7
8
9
10
11
…
16
Next Page
Next
Go to Page
Light
Dark
GK
Pakistan Studies
Current Affairs
Islamic Studies
English