In the phosphate test, what reagent is used?

In the phosphate test, what reagent is used?

A. Molybdate
B. Stannous
C. Potassium-iodide-iodate
D. A and C
E. A and B





Answer: E

In the sodium sulphite test, ___ is added drop by drop until a permanent light blue color is attained.

In the sodium sulphite test, ___ is added drop by drop until a permanent light blue color is attained.

A. Starch
B. Potassium-iodide-iodate
C. Molybdate reagent
D. Hydroxides
E. Bicarbonates






Answer: B

Which test uses a device with two electrodes that are immersed in the sample and a voltage is supplied to the electrodes by a means of a battery.

Which test uses a device with two electrodes that are immersed in the sample and a voltage is supplied to the electrodes by a means of a battery.

A. Methyl orange test
B. pH testing
C. Sodium sulphite test
D. Phosphate test
E. Dissolved solid test





Answer: B

Which test measures the ability of the water to conduct an electric current?

Which test measures the ability of the water to conduct an electric current?

A. Methyl orange test
B. pH testing
C. Sodium sulphite test
D. Phosphate test
E. Dissolved solid test





Answer: E