A quantity of air was passed through a weighed amount of alkaline pyrogallol…
A quantity of air was passed through a weighed amount of alkaline pyrogallol. An increase in the weight of the pyrogallol would result from the absorption of
Alkaline pyrogallol is well known for its hunger and strong affinity for oxygen, in fact, the surest way to take out oxygen from a small quantity of air is to pass it through alkaline pyrogallol.
Now for the right answer to the above question:
- Option A is incorrect. pyrogallol does not absorb nitrogen.
- Option B is incorrect. pyrogallol does not absorb neon.
- C is incorrect. pyrogallol does not absorb argon.
- D is the correct answer. pyrogallol has strong affinity for oxygen.
You may please note these/this:
- The increase in weight of the pyrogallol is as a result of additional weight of absorbed oxygen.
If you love our answers, you can login to comment and say hi to us at the comment section…
To raise new related questions, click the ASK A QUESTION BOTTON down this page!
/ culled from 2015 JAMB-UTME Chemistry PAST question 14 /