Question 1 of 10 10 total questions
The element with the symbol 'Fe' is
A francium
B fermium
C fluorine
D iron
Explanation Answer: D
Fe = iron.
Common table salt dissolved in water forms a
A colloid
B solution
C alloy
D suspension
Explanation Answer: B
Salt in water forms a solution.
Which of these states of matter has a fixed shape?
A liquid
B vapour
C gas
D solid
Explanation Answer: D
Solids have a fixed shape.
A base turns red litmus paper
Explanation Answer: B
Bases turn red litmus blue.
The chemical formula for carbon dioxide is
Explanation Answer: C
Carbon dioxide = COÎ?.
Which is used to measure temperature?
A hydrometer
B barometer
C thermometer
D manometer
Explanation Answer: C
Thermometer measures temperature.
The smallest unit of an element is the
A mixture
B compound
C molecule
D atom
Explanation Answer: D
An atom is the smallest unit of an element.
The gas we breathe in for respiration is
A hydrogen
B carbon dioxide
C oxygen
D nitrogen
Explanation Answer: C
We breathe in oxygen.
Water boils at ___ degrees Celsius
Explanation Answer: C
Water boils at 100ÎC.
The chemical symbol for gold is
Explanation Answer: B
Gold = Au.
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