Class 9 Chemistry MCQ
In diamonds, carbon are ____________ bonded.
Tetrahedrally
Single
Double
None
There are ____________ states of matter
4
3
2
1
The absolute zero means:
273.15 °C
-273.15xa0°C
0xa0°C
-373.15xa0°C
Carbon forms ____________ bonds in diamonds.
4
3
6
9
At ____________ °C water converts to ice.
101°
100°
99°C
100.2°C
1 atm = ?
1 pascal
760 mm of Hg
1 atm
1 Nm-2
Intermolecular forces are of three types and are collectively called ____________
(‘radio-button-click-target’, “Nelson’ forces”)(‘radio-button-click-target–correctquestions’, “Vander Waal’s forces”)
Neurons
Nil
Density of a gas increases, when its:
temperature is increased
pressure is increased
volume is kept constant
none of these
Bucky molecules have ________________ c-atoms.
20-60
20-90
40-60
40-100
Solids are fixed ____________
Shape
Velocity
Mass
Atoms
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