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iTeachChem

A Study Community for Everyone and Everything. We have weekly sessions on Spirituality, Math and Science! JEE, NEET prep? All doubts are crowdsourced. Hare Krishna!

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capacitor help pls

here the work done by external agent is being asked right?? before placing the dielectric battery is releasing charge CV/2. after placing the slab it will change. ofc initial and potential energy of system are diff. for work done by external agent Ui+Work by battery - Uf must be done right...
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capacitor

why cant we just add add 1/2CV^2 and 1/2(3C)V^2...also what do they mean by equivalent capacitance since no battery??
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potential in capacitors

let q1 flow through s1 , q2 through s2 and q3 from wire connecting A and C ek equation (Va-Vb)+(Vb-Vc)=0 se aa jayegi and dusri (Vb-Vc)+(Vc-Vd)=0 , teesri kaise lau...
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Surface chem, Tyndall effect

What does it mean for colloids to scatter light? How do they scatter light, is it like diffraction? Why can I see the path of the light through a colloid?

How to solve the 31st one

I tried to find the molar concentration of ions but 2 moles of Ag2SO4 are left in the reaction I don’t understand what volume to take if some volume is already involved in reaction can someone help
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How to interpret the 55th question?

I don’t even understand the language and what they are trying to ask in this
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water

pani ka buisness isme smaj nhi aaya like 300 ml pani me 50 ml hcl aur 20 ml hno3 dala ya sab mix karke usse 300 mil kiya ya individually kaise?
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Epoxide + grignard

Problem 7 I first opened the epoxide ring from c=o wala carbon and then did reduction of the 😮 giving propan 1,2 diol...
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equi

in questions like these, i dont know the Ka value so how should i procced?
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Fluids, rotating tube about one end

I keep forgetting the approach of this question
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Eqm , Solubility

s for Ag+ = given (compound) -> 2Ag+ + C2O42- 2s s s = 2.2 x 10^-4...
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Functions doubt

In the line I have highlighted, why did we assume the leading coefficient of the quadratic to be greater than zero?
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schwarzschild radius of an atom

I got curious to post this doubt, what could be possibly the schwarzschild radius of an atom? how small could it be

alcohol vs epoxide

what will be the product of this rxn
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How to do the 17tn one?

I tried a lot of approaches and each time I either get wrong answers or massive calculations what would be a jee oriented approach for this?
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Monotonicity doubt using LVMT

So I shared the photo of question and the solution. In the solution it directly says a functions is continuous or nor or whether a functionsi differentiable. Is there any quick method to find whethere a function is continuous or not ? Or it is just solution doesn't show the whole process of finding it ?...
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