Phenolphthalein in acidic solution is?
A. red B. orange C. colourless D. yellow Correct Answer: Option C – colourless
Which of the following ions require the largest quantity of electricity for discharge at an electrode?
A. 4.0 moles of Cl- B. 3.0 moles of Na+ C. 2.5 moles of Cu²+ D. 2.0 moles of Al³+ Correct Answer: Option D = 2.0 moles of Al³+
Which of the following equimolar solutions will have the highest pH?
A. CH3COOHa B. NaOH C. HCl D. NH4OH Correct Answer: Option B – NaOH
Which of the following functional groups will give gas bubbles when treated with a saturated solution of sodium hydrogen trioxocarbonate (IV)?
A. A B. B C. C D. D Correct Answer: Option B = BProducts
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