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R and n is constant.View attachment 57487
pls help
P1V = T1
1*10^5 * V = 293
V = 2.93*10^-3
Total V = 4(V)
P2 * 4(V) = T2
V = A
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R and n is constant.View attachment 57487
pls help
1) It has 2 ketone groups present in both product.
B is tertiary alcohol. It cant be oxidised.27 Which compound • is unaffected by hot alkaline potassium manganate(VII); • gives hydrogen when treated with sodium?
A (CH3)2CHCOCH3
B (CH3)3COH
C CH3CH2CH(OH)CH3
D CH3CO2CH(CH3)2
right answer is B ... but why not C? how is C affected bby KMnO4?
From eqn 1 : We can get an idea that HSO4- will have lower concentration. And when SO4(2-) is formed from that, how u can say that it will be high?
You can use trial and error method or go like this :~
Generally, i mean. They ask questions like why S02 is used as food preservative ... or why MgO is used for lining refractory kilns or sth ... so do you have like a list of things and it's uses that we can go through?Which question are u talking about?
the OH group in the ethanol ... i see. Thank you.OH is a nucleophile, it will attack on aldehyde. You can compare reaction with HCN
No that was what my teacher made me learn in inorganic chemistry.Generally, i mean. They ask questions like why S02 is used as food preservative ... or why MgO is used for lining refractory kilns or sth ... so do you have like a list of things and it's uses that we can go through?
the OH group in the ethanol ... i see. Thank you.
ok okNo that was what my teacher made me learn in inorganic chemistry.
some things are asked from IGCSE level....
So prepared?ok ok
1) It has 2 ketone groups present in both product.
2) On double bond means only 1 product so 2 is wrong.
3) One product has both ketone (di-ketone), so 3 is wrong.
The product will be a straight chainhow can 1 double bond mean only one product? doesn't each double bond breaking result in two products?
How 8?Q30 ? i am getting 8 ketone functional group how to solve?
http://papers.gceguide.com/A Levels/Chemistry (9701)/9701_w14_qp_11.pdf
http://papers.gceguide.com/A Levels/Chemistry (9701)/9701_w14_ms_11.pdf
Just memorise its always CNO- its always repeatingAnyone?
I want a proper reasoning. Thanks thoughJust memorise its always CNO- its always repeating
which year is it? so i can explain betterI want a proper reasoning. Thanks though
Yes it is. Thank you!Is the answer A?
5/15*12 + 10/15*6 = 8 kPa
I dont remember.which year is it? so i can explain better
Could you please show the equations as I'm slightly confused how you know there are two Fe3+ ions for each Fe2(SO4)3I have relooked at the question and spotted my mistake.
The concentration of Fe2(SO4)3 is o.1 mol/dm3. But since we are using concentration of Fe3+ , we do need to multiply it by 2 as there are two Fe3+ ions for each Fe2(SO4)3.
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