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yar there are reaction of propene ie alkene with hydrogen halides so ie MARCHONOVI RULE so by applying that it can be true isnt it ?no told you when SOCl2 is there no other option can be correct
yar there are reaction of propene ie alkene with hydrogen halides so ie MARCHONOVI RULE so by applying that it can be true isnt it ?
AoA,
AoA,http://www.xtremepapers.com/papers/... AS Level/Chemistry (9701)/9701_s10_qp_42.pdf
q3 c (i) carbon aslo has an empty 2p orbital so why it cant react
AoA,http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w04_qp_4.pdf
in Q2 part e.. isnt the ratio of electrons to hydrogen 2:1.. hence when we get mol of electron by 345600/96500 we divide it by 2 to get get mol of hydrogen wich will also be its mass? PLEASE ANSWER
So, is there still confusion ?well @smz imran when 4 cl will be bonded to carbon......its p orbital will be filled as opposed to when 3Cl will be bonded toB....its p orbital will still have space to accomodate a lone pair of electrons
i dint thought abt the bonded situation and got confused
For Q39 i dont understand what will happen when aqueous akali is added to compund 2(ester) and compound 3(nitrile)?AoA,
Q9:
pressure is directly proportional to number of moles of solute, as from the equation moles of solute are increasing pressure increases
, and it is obvious that glucose and fructose are not optical isomers so they are structural isomers
Therefore, the answer is D
Q10:
View attachment 7325
Thus, A is the answer!
Q35:
When firework is lit, heat is given to barium nitrate and it decomposes due to heat
Ba(NO3)2 --> BaO + 2NO2 + 0.5O2
BaO can be reduced to barium by Mg, and in doing so MgO will form
However, since the nitrate is not stable to heat, magnesium nitrate cannot form!
That means options 1 and 2 are correct and 3 is wrong
That is why B is the answer!
Q39:
You should know from the knowledge of reactions why options 2 and 3 are correct!
1 is incorrect because by boiling CH3CH2Cl under reflux with dilute alkali will produce CH3CH2OH
but adding mineral acid will not turn it into ethanoic acid, that can only be done by oxidation under reflux!
hydrolysis for ester and nothing to mitrileFor Q39 i dont understand what will happen when aqueous akali is added to compund 2(ester) and compound 3(nitrile)?
Hi guys
Can anyone tell me something about complex ions? One past paper question asked me to draw the displayed shape of d-orbitals of metal cation in complex ions, and to explain the energy differences among the d-orbitals. I felt like my teacher did not mention this part.
hello guys!can a chemist please help me..i need explanation for some of the questions in paper 1 oct/nov 05Q3, Q5, Q14, Q16, Q17, Q18, Q29, Q30, Q38.please helppp... :/
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