[DSE化學2017]同學準備好DSE CHEM未?

都錯

可唔可以解釋下

End point = first appearance of extra drop of Mnao4-

The remaining sol in conical flask is pale green becoz dilution effect

After an extra drop of MnO4-, with the dilution effect, purple to pale purple

Pale green to pale purple

屌做嗰時唔知做乜鳩無理fe2+

我寫左淡綠 to 紫, 有寫淡紫

冇寫淡紫

調返轉?

都錯

可唔可以解釋下

End point = first appearance of extra drop of Mnao4-

The remaining sol in conical flask is pale green becoz dilution effect

After an extra drop of MnO4-, with the dilution effect, purple to pale purple

Pale green to pale purple

屌做嗰時唔知做乜鳩無理fe2+

我寫左淡綠 to 紫, 有寫淡紫

其實MC20 22 23先是最伏
Burning coal under room temperature
同時有poison and non poison gas
真是唔知計唔計出CO好

我對完錯1題
錯ca3po42@@

求答案

CDABC
CACAA
BBDAB
AABDD
CDBCD
BCDAA
BCCDC
C

其實MC20 22 23先是最伏
Burning coal under room temperature
同時有poison and non poison gas
真是唔知計唔計出CO好

我對完錯1題
錯ca3po42@@

求答案

CDABC
CACAA
BBDAB
AABDD
CDBCD
BCDAA
BCCDC
C

第5題alkene優先

其實MC20 22 23先是最伏
Burning coal under room temperature
同時有poison and non poison gas
真是唔知計唔計出CO好

我對完錯1題
錯ca3po42@@

求答案

CDABC
CACAA
BBDAB
AABDD
CDBCD
BCDAA
BCCDC
C

第5題alkene優先

25 B?

其實MC20 22 23先是最伏
Burning coal under room temperature
同時有poison and non poison gas
真是唔知計唔計出CO好

我對完錯1題
錯ca3po42@@

求答案

CDABC
CACAA
BBDAB
AABDD
CDBCD
BCDAA
BCCDC
C

第5題alkene優先

25 B?

其實MC20 22 23先是最伏
Burning coal under room temperature
同時有poison and non poison gas
真是唔知計唔計出CO好

我對完錯1題
錯ca3po42@@

求答案

CDABC
CACAA
BBDAB
AABDD
CDBCD
BCDAA
BCCDC
C

其實MC20 22 23先是最伏
Burning coal under room temperature
同時有poison and non poison gas
真是唔知計唔計出CO好

我對完錯1題
錯ca3po42@@

求答案

CDABC
CACAA
BBDAB
AABDD
CDBCD
BCDAA
BCCDC
C

第5題alkene優先

25 B?

yea 25 must be B

其實MC20 22 23先是最伏
Burning coal under room temperature
同時有poison and non poison gas
真是唔知計唔計出CO好

我對完錯1題
錯ca3po42@@

求答案

CDABC
CACAA
BBDAB
AABDD
CDBCD
BCDAA
BCCDC
C

第5題alkene優先

25 B?

yea 25 must be B

其實MC20 22 23先是最伏
Burning coal under room temperature
同時有poison and non poison gas
真是唔知計唔計出CO好

我對完錯1題
錯ca3po42@@

求答案

CDABC
CACAA
BBDAB
AABDD
CDBCD
BCDAA
BCCDC
C

source?

第七題點解係a

第七題點解係a

同問

負 放熱wo

第七題點解係a

同問

負 放熱wo

點解唔係B

其實MC20 22 23先是最伏
Burning coal under room temperature
同時有poison and non poison gas
真是唔知計唔計出CO好

我對完錯1題
錯ca3po42@@

求答案

CDABC
CACAA
BBDAB
AABDD
CDBCD
BCDAA
BCCDC
C

source?

Myself
應該錯1/2題

第七題點解係a

同問