Biology; Chemistry; Physics: Post your doubts here!

[asd]

isomer will change the chemical properties so i guess thts why it wudnt react

isomers have diff physical properties but same chemical properties *

 

[sunflower789]

isomers have diff physical properties but same chemical properties *

oh ya....my bad

 

[khizer shahab]

haha101 is fully correct !! thnks for help

 

[haha101]

haha101 is fully correct !! thnks for help

Glad that I could help

 

[Spidey21]

THNX FOR THE NAME
BUT IN PASTPAER ATP A QUESTION CAME

Q) a student found that different alcohol,altough having the same formula did not give a carboxylic acid as the product,suggest the name and structure of this alcohol

name.....................................


structure __________________________

so i posted its answer asking its reasons ..!! pls confirm me soon

just for confirmation how is acid made from alcohol?

 

[haha101]

just for confirmation how is acid made from alcohol?

dude when alcohols are oxidised with the help of oxidising agents they form carboxylic acids !!!

 

[asd]

Alcohols with -CH2-OH can only be converted to carboxylic acids !!

Didn't get this, mind explaining?

 

[syed1995]

Didn't get this, mind explaining?

yea i didn't get it either.

 

[Dukeofwin]

Time for some drama here. This year it seems thats science papers have pattern of MCQs and ATP being easy and Theory being tough. So according to that thinking, just biology ATP question from 1998 and 2008 were repeated chances are high for a similar repetition.
Obviously the Moles and Salt question will be from recent years however my instincts say that the MCQ questions in ATP could be similar to question is late 90's.
So if you have the resources of past papers from 1990's then do give a glance at them, May Help You!!
Just a speculation though, but can come in handy!

 

[Abdul rehman]

plz guys chemistry atp guess paper of imran merchant .

 

[Dukeofwin]

plz guys chemistry atp guess paper of imran merchant .

Guess papers dont work on science subjects dude!

 

[syed1995]

plz guys chemistry atp guess paper of imran merchant .

where is it?

 

[syed1995]

Guess papers dont work on science subjects dude!

Yep .. but having a look at whatever they have to say won't harm us in any way

 

[Fallen316]

formula for percentage purity ?? Anyone ?

 

[daredevil]

HEYY GUYSS!! I AM ALWAYS CONFUSED ABOUT THIS THAT ARE WE ALLOWED TO USE THE BLANK PAGES TO COMPLETE THE ANSWER IF THERE IS NOT ENOUGH SPACE? AND IF YES THEN WHAT DO WE DO? LIKE JUST PUT THE NUMBER AND WRITE THE ANSWER??
PLZZZ TELL ASAP!! >__<

 

[daredevil]

HEYY GUYSS!! I AM ALWAYS CONFUSED ABOUT THIS THAT ARE WE ALLOWED TO USE THE BLANK PAGES TO COMPLETE THE ANSWER IF THERE IS NOT ENOUGH SPACE? AND IF YES THEN WHAT DO WE DO? LIKE JUST PUT THE NUMBER AND WRITE THE ANSWER??
PLZZZ TELL ASAP!! >__<

 

[Abdul rehman]

Guess papers dont work on science subjects dude!

bhai imran mercahant guess paper is very much accurate

 

[daredevil]

formula for percentage purity ?? Anyone ?

MASS OF PURE SUBSTANCE/MASS OF TOTAL SAMPLE *100

 

[SalmanPakRocks]

daredevil: Writing in block letters is 'not' allowed. Refrain from that.

 

[Abdul rehman]

imran merchant atp guess paper plz