The PH of a solution is measured by. (a)litmus (b)methylprange (c) phenolphthalein (d)universal PH indicator. MCQ
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(a) litmus
the pH of a solution is measured by litmus paper by checking whether the colour chances or not.
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Hi....
pH can be measured by measuring the voltage produced between two special electrodes immersed in the liquid solution. One electrode, made of a special glass, is called the measurement electrode. It's a job is to generate a small voltage proportional to pH (ideally 59.16 mV per pH unit).
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