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circles 2

Shouldn't infinite points satisfy the given condition? Answer is 8 btw....
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thermochemistry

so i was studying thermochemistry and they use ΔH = -x kJ/mol, my doubt is what does that per mol refer to? per mol of what? [my teacher said that it refers to per mol extent of reaction but tbh i still do not get it]

solution question doubt

In the question no 5, we know that Kh proportional to Temp & 1/Molecular Mass. But, there is two factors the answer is given C,how?
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indef integration

Why are two different ans coming?
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alkyl halides

What is the temperature required for this: R-OH + PX3 -> R-X...

Lyophilic or lyophobic?

Confused in how can i actually figure out between them like for exam i was given this as a quiz : identify the lyophilic compounds 1. Blood 2. Fog...

waves

Can we call 2 sources coherent if they have different K (wave no.) ?

kinematics/aod

if i solve by drawing v-t graph and check the nature of the slope then acceleration comes out to be decreasing (for magnitude of accel we make rightward parabola in v-t graph) but solving by normal differentiation gives acceleration as constant. Can someone pls explain why im getting different answers and which one is correct?
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Work power energy

someone please confirm if my method to solve is correct.
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magnetism

Why is this wrong, if i take emperial loop outside the wire, there is magnetic field there but the law says it's zero
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inequalities

How to proceed further ...? Sorry page ke last mein question hai...
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Circular Motion

Can anyone please solve this problem, i have tried it but unable to do so Found angular acceleration but that didn't work out...
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Optics

How to prove this relation? I tried on my level but couldn’t
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circles

q4, how to solve it?
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equivalent resistance

help. i tried using potential method and kcl, cant get answer. (answer is (4) 'r')
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definite integral

Im using reciprocal property here but idk where im doing wring the ans is piLn2
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kinematics

Did I do smth wrong , my ans not in option
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conversion in amines

just wanna know what happens and the logic between them . and if theres any short trick to do this conversion. thanks
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diazonium formation

What will happen in third case?
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SN2

Is sn2 faster in: (CH3)2 CH2 Cl or CH3 Br...