Related Questions

If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to
A Total alkalinity
B Total hardness
C Total hardness total alkalinity
D Non carbonate hardness
Alkalinity in water is expressed as milligrams per litre in terms of equivalent
A Calcium carbonate
B Magnesium carbonate
C Sodium carbonate
D Calcium hydroxide
Which one of the following metals does not react with water to produce Hydrogen ?
A Potassium
B Cadmium
C Sodium
D Lithium
which of the following has least Alkalinity ?
A NH4OH
B AgOH
C NH2OH
D NH2-NH2
Acidity in water is caused due to
A Mineral acids
B Free CO2
C Aluminium sulphate
D All the above
The most common cause of acidity in water is
A Carbon dioxide
B Oxygen
C Hydrogen
D Nitrogen
A machine can produce 10 units in 5 hours. Another machine can produce 5 units in 10 hours. Working together, how many units can they produce in 30 hours?
A 50 units
B 60 units
C 70 units
D 80 units
To check acidity, one had better ------litmus paper.
A using
B useful
C usable
D use
To check acidity, one had better_____a litmus paper.
A suing
B use
C to use
D useful
To check acidity, one had better ——litmus paper.
A using
B useful
C usable
D use

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