WorksheetsChemistry test
Total questions: 10
Worksheet time: 5mins
1. Thermodynamics is applicable to ___________.
Microscopic system only
Macroscopic system only
Homogeneous only
Heterogeneous only
1. The amorphous solid among the following is ________
a) Rock salt
a) Diamond
a) Plastic
a) Graphite
A crystalline solid does not have one of the following properties. It is ____
Anisotropy
Isotropic
Sharp melting point
Definite and regular geometry
NaCl , CsCl are example of ____
Cubic crystal system
Tetragonal crystal system
Orthorhombic crystal system
Rhombohedral crystal system
When limestone is heated it forms lime (calcium oxide) and carbon dioxide.
CaCO3(s) → CaO(s) + CO2(g)
Which statement is not correct?
Carbon dioxide is a greenhouse gas which may contribute to climate change
Slaked lime is used to neutralise industrial waste
The lime can be used to treat alkaline soil
This reaction is an example of thermal decomposition
Which process is used to make lime (calcium oxide) from limestone (calcium carbonate)?
chromatography
electrolysis
fractional distillation
thermal decomposition
Sulfur dioxide, carbon monoxide and oxides of nitrogen are common gaseous pollutants found in the air.
Which pollutants contribute to acid rain?
carbon monoxide and sulphur dioxide
oxides of nitrogen and sulphur dioxide
oxides of nitrogen only
sulphur dioxide only
The pollutants released into the air from car exhausts and some power stations include oxides of the type XO and YO2.
What are X and Y?
X = carbon only
Y = nitrogen only
X = carbon only
Y = nitrogen and sulphur only
X = carbon and nitrogen
Y = carbon and nitrogen only
X = carbon and nitrogen
Y = carbon, nitrogen and sulphur
Greenhouse gases may contribute to climate change.
Two of these gases are emitted into the atmosphere as a result of processes within animals.
Gas ……1…… is produced by process ……3…… .
Gas ……2…… is produced by process ……4…… .
Which words correctly complete gaps 1, 2, 3 and 4?
1 CO
2 C2H6
3 digestion
4 respiration
1 CO
2 C2H6
3 respiration
4 digestion
1 CO2
2 CH4
3 digestion
4 respiration
1 CO2
2 CH4
3 respiration
4 digestion
