| Author |
Message |
![[Post New]](/templates/default/images/icon_minipost_new.gif) 2 Apr 2008 10:09:31 IST
|
|
|
Do all aldehydes react with tollens reagent? What are the exceptions?
|
|
|
|
2 Apr 2008 10:19:01 IST
|
|
|
Aromatic aldehydes do no react......all aliphatic aldehydes do.....
|
this reply: 2 points
(with 0 
in 1 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
2 Apr 2008 10:50:16 IST
|
|
|
ALL ALDEHYDES GIVE BRIGHT SILVER MIRROR WHEN REACT WITH AMMONICAL SILVER NITRATE.
|
I LIKE HARRY POTTER BOOKS, GAMES, MOVIES, THEMES, WALLPAPERS, ANIMATIONS ETC. I HAVE COMPLETED READING ALL POTTER BOOKS, GAMES AND SEEN ALL THE MOVIES AND I OWN THE SAME.
I AM A BIG FAN IF J.K.ROWLING AND WARNER BROTHERS.
     
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
2 Apr 2008 21:34:01 IST
|
|
|
Both aliphatic and aromatic aldehydes give silver mirror test with Tollen's reagent.
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
2 Apr 2008 22:20:09 IST
|
|
|
Kishore s correct.... Aromatic aldehdes wont undergo for eg benzaldehyde
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
2 Apr 2008 22:21:21 IST
|
|
|
no thats nonsense. All aldehydes will undergo tollens test
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
3 Apr 2008 08:21:07 IST
|
|
|
there are some exceptions eg all aromatic aldehydes, glyoxal,etc..
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
3 Apr 2008 08:36:05 IST
|
|
|
why doesnt glyoxal answer??? And this suggests that all aldehydes answer it and FYI aromatic aldehydes dont answer only Fehlings as shown here
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
3 Apr 2008 08:36:18 IST
|
|
|
@ agni and kishore 
go and check ur concepts first
all aldehydes (aromatic and aliphatic ) give tollens test
|
all the best ... |
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
3 Apr 2008 10:52:38 IST
|
|
|
benzaldehyde reacts with tollent's reagent but it doesnt give fehling's test.
|
1st year,
B.Tech ( CSE ) ,
NIT-Trichy.
"There are no accidents in my philosophy. Every effect must have its cause. The past is the cause of the present, and the present will be the cause of the future. All these are links in the endless chain stretching from the finite to the infinite." - Abraham Lincoln |
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
3 Apr 2008 10:57:00 IST
|
|
|
all of them gives tollen but only aliphatic gives felhing
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
|
|
Moderation Team
![[Up]](/templates/default/images/icon_up.gif "[Up]"){kind=icon}
1
