- Messages
- 222
- Reaction score
- 166
- Points
- 53
Thanks boss,i understand it but sorry man,i checked the answer n it is A.Answer is D as it is reaction between ketone and 24 DNPH, which is able to done without heating
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)
Thanks boss,i understand it but sorry man,i checked the answer n it is A.Answer is D as it is reaction between ketone and 24 DNPH, which is able to done without heating
Thanks boss,i understand it but sorry man,i checked the answer n it is A.
I think u r right man.Thanks a lot.Hmmmm, I guess it is said in book and notes, adding PCl5 or PI3 is not needed with heat and reflux. But other need high temp or heat in reflux, don't really know if this helps sorry :/
Boss what is answer for question 23?
can anyone explain no.6 and 7?
Boss what is answer for question 23?
Is the answer a?
This one someone posted before.... we have 3 products.. ethene methane and propene...Ans is B
plzz do solve other doubtss xamz r near
http://papers.xtremepapers.com/CIE/... AS Level/Chemistry (9701)/9701_s11_qp_12.pdf
Q 11 you guys,It's been asked here for like 3 times and apparently it wasn't answered . can someone answer it for me ?
Can't think of an answer!
11 0.144 g of an aluminium compound X react with an excess of water, to produce a gas. This gas
burns completely in O2 to form H2O and 72 cm3
of CO2 only. The volume of CO2 was measured at
room temperature and pressure.
What could be the formula of X?
A Al 2C3 B Al 3C4 C Al 4C3 D Al 5C3
someone plz explain this
P1
Question :
Use of the Data Booklet is relevant to this question.
A washing powder contains sodium hydrogencarbonate, NaHCO3, as one of the ingredients. In a
titration, a solution containing 1.00 g of washing powder requires 7.15 cm3 of 0.100 mol dm–3
sulfuric acid for complete reaction. The sodium hydrogencarbonate is the only ingredient that
reacts with the acid.
What is the percentage by mass of sodium hydrogencarbonate in the washing powder?
Answer : 12
http://papers.xtremepapers.com/CIE/...d AS Level/Chemistry (9701)/9701_s04_qp_1.pdf
Please Help with Q1 and Q11
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