pH Scale: Acid and Alkali Quiz Questions and Answers PDF Download eBook p. 73
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Quiz on pH Scale: Acid & Alkali PDF Download eBook
MCQ: Toothpaste has an average pH of
MCQ: Consider the equation PbO + NaOH + H2O → Na2Pb(OH)4. The balancing of the equation requires how much moles of NaOH?
MCQ: In the fractionating column of fractional distillation, as we go higher in the column the
- temperature becomes lower
- temperature becomes higher
- minimum absorption is carried out
- risks of sublimation exists
MCQ: After centrifugation when the sublimate settles, the clear liquid can be
- allowed to rest
- allowed to form crystals
- decanted off
MCQ: While Iodide ion (I-) oxidizes to Iodine (I2), a change in color from colorless to
- brown occurs
- pink occurs
- blue occurs
- violet occurs