On exposure to hydrogen sulphide, moist lead (II) ethanoa...
On exposure to hydrogen sulphide, moist lead (II) ethanoate paper turns
black
blue
green
white
yellow
Correct answer is A
No explanation has been provided for this answer.
When dissolved in water, NaOH flakes show ...
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Which of the following solutions containing one mole per dm3 of the compound would have the low...