- Messages
- 354
- Reaction score
- 529
- Points
- 103
http://papers.xtremepapers.com/CIE/... AS Level/Chemistry (9701)/9701_s11_qp_23.pdf
Q2e how to calculate the number of electrons ?!
Q2e how to calculate the number of electrons ?!
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s11_qp_23.pdf
Q2e how to calculate the number of electrons ?!
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s12_qp_21.pdf
Q5 b(ii) and (iii) explain why we multiplied by 2 in (i) arent we supposed to divide by 2 ?
can someone show how to draw the skeletal formula of both cis trans isomers of but-2-ene
How to draw this :
PS : As students take care , this might be the question for you this session !!!
View attachment 41393
Doesn't CH3-CO group give positive test in iodoform test. Ethanoic acid involves CH3-CO group.Ethanol yes Ethanoic Acid no.
Ethanol has an alcohol group besides a CH3- link so it'll show you a positive test with alkaline iodine.
See ethanol and think 3D. If it still doesn't make sense quote me and tell me I'll draw it out.
Doesn't CH3-CO group give positive test in iodoform test. Ethanoic acid involves CH3-CO group.
does I2 and NaOH also behaves as oxidising agent?You're very right that ethanoic acid has a terminal methyl with CO, but the C=O is delocalized here over the entire group. Remember how 2,4 DNPH reacts with carbonyl groups but not carboxylic groups even though all three have at least one C=O? Precisely that principle is applied here.
Iodine is a strong reducing agent because of that extra electron which is less attracted to the nucleusdoes I2 and NaOH also behaves as oxidising agent?
Except for the first link,all of them are working.Entirely BOGUS SITES NOT A HELP TO ANY ONE!!!!
your answer is right , but how did you figure out that one will be double and the other two will be single bond?I'd go witth something like this
Though, I'm not sure exactly what the full question is. I guess it's asking for NO3- ion
What makes you think it'll come?How to draw this :
PS : As students take care , this might be the question for you this session !!!
View attachment 41393
For almost 10 years, the site XtremePapers has been trying very hard to serve its users.
However, we are now struggling to cover its operational costs due to unforeseen circumstances. If we helped you in any way, kindly contribute and be the part of this effort. No act of kindness, no matter how small, is ever wasted.
Click here to Donate Now