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iTeachChem

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river problem

i tried doing this question but i ended up getting a hard equation in terms of sin0 and cos0 and on proceeding further i got stuck again
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Interesting question on COM

The answer given is C) the solution doesn't provide any explanation as to why, can someone suggest to me the thought process of how I should solve this
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binomial

only bothered bout sum of series
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meta director

very small doubt is -ch=ch2 a meta director or o/p director...

Nitration

During nitration in SE rxns what is the role of hno3 Is it a bronsted base or a lewis base...

Can ring chain isomers be positional isomers also?

I mean, the number in pcc can be same in both, but should nature of pcc have to be same in position isomers or different? (Maybe eg: from cyclopropane to propene, there is difference of fg so in this case, ring chain isomers can't be position isomers but is it always that?.. I'm confused)

alkene hydrolysis to alcohol

Which of the following alkene is used?
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products of electrolysis

koi meko call pe products of electrolysis smjha do simple bhasha mai

P Block Group 13 Oxidation State problem

it says here that the relative stability of +1 oxidation state increaees my question is: relative to what??? is +1 State more stable down the group in comparison to +3 of these elements?? or is +1 state more stable in the sense that +1 of Tl > In > Ga...
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Kinematics: Range doubt

How to go about option (3) & (4)? I have a vague-ish idea it has something to do with radius of curvature and relation from max. height. But how to build on that?
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in oxidative ozonolyis if HCHO is one of the initial products with further oxidation

does it become co2 or hcooh, in one place they said to replace both H with OH as double OH unstable it becomes CO2 but somewhere else i saw it becomes HCOOH

Dimerisation

In the first reaction what's really the mechanism? Why don't we get di yne
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Polynomials

How would one prove the claim in the solution? Why must it be between -n² and n²? f_1 is first derivative btw....
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Chemical bonding: % s character and Bond Angle

In the question, all the molecules are sp3d hybridized which means that the %s character for all is same. So shouldn't graph be a straight line parallel to y-axis?
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alpha H +1 or only Alpha H ?

for total no of hyperconjugative strs some ques uses n+1 formula and some uses only 'n'. so what to do when nothing is mentioned in exam?...
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complex nos

if z represents a complex number then find minimum and maximum value of |z| if |z-2|-|z+2|=2 pls give geometric approach...