Biology; Chemistry; Physics: Post your doubts here!

[FLRNAB]

I assume u want me to state tht it can be any one or tht I am not sure which one...The pt I am trying to say is tht despite the refraction(which is one time only)it will meet at tht point and we can easily adjust the line accordingly

Adjust does not mean the angles will be correct thus you should follow the parallel line one because it's angles are fairly simple and straight forward.

Not anyone. Only one and you don't know because you don't know refractive index and angle of incidence.

 

[DAZ1234]

what was the answer to the MCQ...... hydrogen compouds with group 7 elements always .......???

Are covalent

 

[DAZ1234]

Because i am an idiot. I always write more stuff. Should have written ''Simple'' with it. Should have looked at the syllabus properly!

I wrote 'Simple Sugars' CUT IT, and then wrote Starch :'|

 

[Dark Destination]

I wrote 'Simple Sugars' CUT IT, and then wrote Starch :'|

:/

 

[M.Omar]

Adjust does not mean the angles will be correct thus you should follow the parallel line one because it's angles are fairly simple and straight forward.

Not anyone. Only one and you don't know because you don't know refractive index and angle of incidence.

http://www.physicsclassroom.com/class/refrn/Lesson-5/Image-Formation-Revisited
U might want to rephrase tht.. I think i cant convey it properly enough ..Hook up the conv lens img formation.U will get wht I mean

 

[Dark Destination]

What was the answer to Polyunsaturated question?

I wrote it has Double bonds in many places. .-.

 

[M.Omar]

I wrote 'Simple Sugars' CUT IT, and then wrote Starch :'|

Lol Y did u do tht Danial...Starch is a poly mer..hydrolysis changes to a monomer.Btw did u look it up in the syllabus or any special reference book

 

[M.Omar]

What was the answer to Polyunsaturated question?

I wrote it has Double bonds in many places. .-.

Correct 1mark double bonds of carbon to carbon 1 mark for many such bonds
did u write double carbon to carbon
p.s it, in the mark scheme the 2 pts

 

[Dark Destination]

Correct 1mark double bonds of carbon to carbon 1 mark for many such bonds
did u write double carbon to carbon
p.s it, in the mark scheme the 2 pts

Carbon to Carbon. Is that necessary? because in diagram their were double bonds between Oxygen and Carbon :/

- Double bonds.
- Many/In a number of places.

That should be the mark allocation.

And which marking scheme?
Which year?

 

[M.Omar]

Carbon to Carbon. Is that necessary? because in diagram their were double bonds between Oxygen and Carbon :/

- Double bonds.
- Many/In a number of places.

That should be the mark allocation.

And which marking scheme?
Which year?

I don't know exactly ...but only carbon to carbon double bonds are converted to single bonds turning them to saturated for instance carboxlic acid aint saturated (I know not the right term) bit it,s these double bonds tht make it saturated ..Abt the MS I don't know exactly s11 to s13(iinclusive winter session)

 

[DAZ1234]

Lol Y did u do tht Danial...Starch is a poly mer..hydrolysis changes to a monomer.Btw did u look it up in the syllabus or any special reference book

I looked at it in the syllabus. I thought sugar couldn't be a 'class' , got confused : / anyway 1 mark ka tha.

 

[M.Omar]

I looked at it in the syllabus. I thought sugar couldn't be a 'class' , got confused : / anyway 1 mark ka tha.

hey was there a Q where Pressure didnt have an effect or something? in P2

it,s a class alright....
I wud not say tht for myself
Section B q3..

 

[Dark Destination]

I looked at it in the syllabus. I thought sugar couldn't be a 'class' , got confused : / anyway 1 mark ka tha.

But syllabus says SIMPLE SUGARS. i wrote SUGAR.

 

[Dark Destination]

I don't know exactly ...but only carbon to carbon double bonds are converted to single bonds turning them to saturated for instance carboxlic acid aint saturated (I know not the right term) bit it,s these double bonds tht make it saturated ..Abt the MS I don't know exactly s11 to s13(iinclusive winter session)

So it was definitely from past papers? .-.
And i'll lose one mark for not mentioning C-C?

 

[DAZ1234]

it,s a class alright....
I wud not say tht for myself
Section B q3..

so they weren't gases? DAAAAAMMMMM i didn't look at the equation

but they'd asked how temperature affects the RATE OF REACTION in the first part, not equillibrium

 

[M.Omar]

So it was definitely from past papers? .-.
And i'll lose one mark for not mentioning C-C?

possibly but sersiously I cant tell...There r sometime too syllabus oriented for olevels tht they wud accept an answer relevant to Olevel only...Perhaps unsaturation may have sthh with other double bonds..But right now I have just stated u the words of MS

 

[Dark Destination]

possibly but sersiously I cant tell...There r sometime too syllabus oriented for olevels tht they wud accept an answer relevant to Olevel only...Perhaps unsaturation may have sthh with other double bonds..But right now I have just stated u the words of MS

So the marking scheme did have one mark allocated for saying C-C?

I looked through year 11 to 13, can't find it :/

 

[Skhan94]

guys was the question 3 in section B related to gases or not?

 

[Lilly2318]

So the marking scheme did have one mark allocated for saying C-C?

I looked through year 11 to 13, can't find it :/

haha i wrote carbon oxygen double bonds. cuz there wer c=o bonds. no c=c bonds i culd see

 

[Lilly2318]

which one the endo on? if so yes

guys was the question 3 in section B related to gases or not?