Qualification > Sciences
ALL CIE CHEMISTRY DOUBTS HERE !!
EMO123:
--- Quote from: ~~!$!HUSH!$!~~ on May 27, 2011, 06:30:46 pm ---in Q15,the AgCl is insoluble,so a reaction with a more reactive metal causes Ag's displacement(from AgCl to NaCl).
Q20 : the compound has 3 double bonds,therefore you use 2 to the power of 3 which is equal to 8.
--- End quote ---
now i got you thanxx Hush
after i tryed it all the ways i got you what you were meaning so thanxx hush
HUSH1994:
Anytime ;)
Dania:
What is the pH of the buffer that results when 11g of NaCH3CO2 is mixed with 85ml of 1.0M CH3C02H and diluted with water to 1.0 L? (Ka of CH3C02H = 1.8 x 10-5)
a. 2.91
b. 3.86
c. 4.55
d. 4.74
e. 4.94
iluvme:
Could answer this question and explain it for me please?
Which alcohol gives only one oxidation product when warmed with dilute acidified potassium
dichromate(VI)?
A butan-1-ol
B butan-2-ol
C 2-methylpropan-1-ol
D 2-methylpropan-2-ol
The answer is B
The Golden Girl =D:
--- Quote from: iluvme on May 29, 2011, 07:18:55 pm ---Could answer this question and explain it for me please?
Which alcohol gives only one oxidation product when warmed with dilute acidified potassium
dichromate(VI)?
A butan-1-ol
B butan-2-ol
C 2-methylpropan-1-ol
D 2-methylpropan-2-ol
The answer is B
--- End quote ---
I guess what they mean by one oxidation product is only one product from this oxidation ...if it's a primary Alcohol A , then it has two products => Aldehyde and carboxylic acid ...but if it's a secondary Alcohol B then it will give ONLY a Ketone which is why It's B
I hope I helped :)
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