« previous next »
Pages: [1]   Go Down

Author Topic: Chemistry doubt....  (Read 1299 times)

Offline sameer210394

  • SF Citizen
  • ***
  • Posts: 190
  • Reputation: 219
  • Gender: Male
Chemistry doubt....
« on: October 12, 2009, 04:23:49 pm »
th question says....

the reaction shown occurs naturally.

        C6H12O6     ==>      6CO2  +  6H2O
         P                           Q           

which description of P and Q are correct?

        P is a Hydrocarbon               Q is an Acidic Oxide

A             Yes                                      Yes
B             Yes                                       no
C              no                                       Yes
D              no                                        no


I just ticked the option C and the answer was right but i donno how, so ca anybody plz explain be how do u  call Q an acidic oxide???

Thanks in advance...
Logged
Son, if you really want something in this life, you have to work for it. Now quiet! They're about to announce the lottery numbers

nid404

  • Guest
Re: Chemistry doubt....
« Reply #1 on: October 12, 2009, 04:27:37 pm »
Well, hydrocarbons consist of only C and H atoms...so hence glucose is not hydrocarbon.....CO2 is acidic should be known :P....CO2 forms carbonic acid in soln...it's an acidic oxide...cummon dude
Logged

Offline Ghost Of Highbury

  • O_o_O lala!
  • SF Farseer
  • *******
  • Posts: 4096
  • Reputation: 41428
  • Gender: Male
  • Namaskaram!
Re: Chemistry doubt....
« Reply #2 on: October 12, 2009, 05:18:37 pm »
yeah..that was correct...

as nid said..CO2 forms carbonic acid

metal oxides forms an alkali when dissolved in water

and non-metal oxides form acid..
so..yaeh..C is a non-metal..so

the answer is C

@nid - he has taken combined science dude...not pure chem/phy/bio
Logged
divine intervention!

nid404

  • Guest
Re: Chemistry doubt....
« Reply #3 on: October 12, 2009, 05:19:46 pm »
oh ok....
Logged

Offline Ghost Of Highbury

  • O_o_O lala!
  • SF Farseer
  • *******
  • Posts: 4096
  • Reputation: 41428
  • Gender: Male
  • Namaskaram!
Re: Chemistry doubt....
« Reply #4 on: October 12, 2009, 05:27:05 pm »
Quote from: sameer210394 on October 12, 2009, 04:23:49 pm
th question says....

the reaction shown occurs naturally.

        C6H12O6     ==>      6CO2  +  6H2O
         P                           Q           

which description of P and Q are correct?

        P is a Hydrocarbon               Q is an Acidic Oxide

A             Yes                                      Yes
B             Yes                                       no
C              no                                       Yes
D              no                                        no


I just ticked the option C and the answer was right but i donno how, so ca anybody plz explain be how do u  call Q an acidic oxide???

Thanks in advance...

guess u 4got to add O2 in the reactants side... :P
Logged
divine intervention!

nid404

  • Guest
Re: Chemistry doubt....
« Reply #5 on: October 12, 2009, 05:28:10 pm »
haha...even i didn't notice it
Logged

Offline sameer210394

  • SF Citizen
  • ***
  • Posts: 190
  • Reputation: 219
  • Gender: Male
Re: Chemistry doubt....
« Reply #6 on: October 12, 2009, 05:39:37 pm »
Quote from: ~Am~ on October 12, 2009, 05:27:05 pm
guess u 4got to add O2 in the reactants side... :P

eh ya.  :P
Logged
Son, if you really want something in this life, you have to work for it. Now quiet! They're about to announce the lottery numbers
Pages: [1]   Go Up
« previous next »