Biology; Chemistry; Physics: Post your doubts here!

[exploded diper]

Kera graph? The one you asked for in the convo?

Mera matlab experiment

 

[kirann]

As my teacher Rizwan yousufzai said.... always tick the 2nd and 3rd titrations.... because 1st is always for practice.... notice that in alll questions the 2nd and 3rd one will have .2 difference....

r u sure? i think this rule applies most of the time but not always sir rizwan who teaches at BODMAS?

 

[funky brat]

Set up an experiment using respirometer to show that oxygen is used up during respitarion.

 

[funky brat]

Each division on main scale of Micrometer screw gauge accounts for 1mm?

It counts for 1mm, the sleeve reading is 0.5mm.

 

[kirann]

the 2 which are closest to each others.
like, out of 23.1, 23.3 and 23.8, you'll tick 23.1 & 23.3

it the titrations are 23.3, 23.5 and 23.7 then?

 

[***amd***]

Set up an experiment using respirometer to show that oxygen is used up during respitarion.

respirometer? wth is this now?
I know just one exp for that, i dunno if that appratus is called respirometer.

 

[funky brat]

respirometer? wth is this now?
I know just one exp for that, i dunno if that appratus is called respirometer.

Konsa btao?

 

[***amd***]

it the titrations are 23.3, 23.5 and 23.7 then?

you wont get any such results.
they ask you for best titration results only for the purpose of calculating average volume, and in this case, avereage would definitely be 23.5

 

[***amd***]

Konsa btao?

wait, lemme draw a diagram for that.

 

[Laibaaa]

Some one please explain this to me. Havent done this chapter at all.

 

[♣♠ Magnanimous ♣♠]

Some one please explain this to me. Havent done this chapter at all.

is the answer A?

 

[funky brat]

Some one please explain this to me. Havent done this chapter at all.

Seedha seedha B kardo warna sab ney dubara is kay peechey par jana hai. See the previous pages, warna.

 

[funky brat]

is the answer A?

Not at all.

 

[Laibaaa]

Its B but how? :/

 

[♣♠ Magnanimous ♣♠]

Its B but how? :/

is the answer A just answer na?

 

[funky brat]

Describe an experiment regarding extracting and testing an enzyme from living cells.

 

[asadalam]

Set up an experiment using respirometer to show that oxygen is used up during respitarion.

Where did you see this question?

 

[funky brat]

Where did you see this question?

Nowhere. I made it up.

 

[♣♠ Magnanimous ♣♠]

Not at all.

loll hahahahaaha... how can it be B? mosquito lay eggs in water..

 

[kirann]

can somebody plz eplain this question from part e onwards ...