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which alkane withthe least number of carbons can have a chiral centre????
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In phenyl ethanoic acid u see that there is an addition of carbon,which always means that there must be an addition of CN group which replaced another group,Cl in this case.the addition of carbon is in the form of -CooH which means that CN group was hydrolysed.Rest u just need to learn the reagent and condition.
anyone explain please ?
In phenyl ethanoic acid u see that there is an addition of carbon,which always means that there must be an addition of CN group which replaced another group,Cl in this case.the addition of carbon is in the form of -CooH which means that CN group was hydrolysed.Rest u just need to learn the reagent and condition.
Sorry I can't.all I can say is that for option a charge on the cation will only determine strength of metallic bonding and lattice energy.ratio of charge will only tell the formula.like Mg has charge +2 and cl-1 so compound formula will be mgcl2.Option c seems appropriate.never heard anything like sum of charges so no simply.
Thanks can U help me in this also ?
but if the will be 2 methyl 2 same groups will be 2 same groups wont they :/>??5 I guess.2-dimethyropane
can you explain Question 8 Oct 2010 please more briefly because I didn't get itOct 2010 - Q8 - Ca(S) --> Ca(g) is +177
then add ionisation energies 1 and 2 wich are 590 and 1150
then Ca+2(g) --> Ca+2(aq) is -1565
so 117+590+1150-1565 = 352
Q25- a is cracking wich needs 500 degree. b needs reflux in ethanol so high temp needed. c also needs heating. only d doesnt need to be heated.
Really sorry!u are right it will not be chiral then.2-ethyl pentane.7 carbons required.no of carbons can't be lesser than this.but if the will be 2 methyl 2 same groups will be 2 same groups wont they :/>??
thanks ^_^Really sorry!u are right it will not be chiral then.2-ethyl pentane.7 carbons required.no of carbons can't be lesser than this.
CAN ANYONE HELP PLEASE !
Ohh Thanks ! ^_^ .. btw could You help me in Question 3 and 7 of the same paper please ?I got this cleared
https://www.xtremepapers.com/commun...st-your-doubts-here.9859/page-385#post-749053
credit to AbbbbY
any A2 candidates???
Ohh Thanks ! ^_^ .. btw could You help me in Question 3 and 7 of the same paper please ?
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w10_qp_12.pdf
okay now question 26 .. hope I'm not disturbing youI'm sorry, I don't know how to explain q3.
q7 we know it to be constant temp. that's why we use the formula P x V
initial P x V = final P x V
So it should be flask X + flask Y = final pressure x volume
(P x V of X) +(P x V of Y) = P x V final
(5 x 12000) + (10 x 6000) = 15 x P
thus P = 8000 Pa = 8 kPa so answer is A
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