Oh yeah but maths paper is here but without mark schemeafter result in august i guess, which is 13 august
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Oh yeah but maths paper is here but without mark schemeafter result in august i guess, which is 13 august
han, mujhe bhi yehi hairani ho rahi thi yeh kahan sai aaya!Oh yeah but maths paper is here but without mark scheme
Oh well in schools if they have extra papers they give it to the school admin !han, mujhe bhi yehi hairani ho rahi thi yeh kahan sai aaya!
usually there are no extra paper! but i guess that is the only plausible scenario.Oh well in schools if they have extra papers they give it to the school admin !
what will be oxidation state of calcium nitrate Ca(NO3)2
and
(NH4)2 CO3 ????
will the june papers be available before next week??
thank you
i was present in the june exams, that's y!Nah it always after exams and btw why are people so excited to get their hands on the June papers what so cool about them ???
yes oxidation state for both compounds.
what will be oxidation state of calcium nitrate
(1) Ca(NO3)2
and
(2) (NH4)2 CO3 ????
wht about me who s going to appear in exams in November ori was present in the june exams, that's y!
thnkuBoth compounds have a oxidation number of 0
That is because
Ca has a charge of +2 and NO3 has a charge of -1
So there are two nitrate ions joined to one Calcium ion so 2 + 2(-1) = 0
Likewise,
NH4 ion has a charge of +1 and CO3 has a charge of -2, Since there are 2 ammonium ions, 2(+1) + (-2) = 0
So in both cases it adds up to 0 !
Salam
I was revising my course and faced a few problms in the following topics
1 polymerisation 2 electroplating 3 titration
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