A gas that turns a filter paper previously soaked in lead...
A gas that turns a filter paper previously soaked in lead ethanoate solution black is?
hyrogen chloride
hydrogen sulphide
sulphur (IV) oxide
sulphur (VI) oxide
Correct answer is B
No explanation has been provided for this answer.
What is the atomic number of Zirconium? ...
The saponification of an alkanoate to produce soap and alkanol involves ...
Which of the following metals is purified commercially by electrolysis? ...
When air is passed through alkaline pyrogallol and then over quicklime, the only gases left are? ...
How many unpaired electron are in the p-orbitals of a fluorine atom? ...
Which of the following sulphides is insoluble in dilute HCl? ...