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GOC dipole moment

I was expecting option 4 to be the correct answer? I can't figure out why it's option 1.
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GOC basicity

Main thoda confusion Answer is option 1...
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Quad

In this questions i am getting 3 solutions ?
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Trigonometry

i am getting nowhere simplifying this please help
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Cool Trigonometry Question

had to look at the solution for an approach and i-its quite elegant ye alag baat hai ki wo bhi poora samajh nahi aaya
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Chem equilibrium

3K2MnO4+2H2O=4OH-+MnO2+2K2MnO4 what will you add to increase production of KMnO4 ? a)HCl b)CO2...

Trigonometry

approach no getting ;-;
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Binomial Advanced

the one on the left is the solution why is right not an answer?? i mean i dont think ive done anything wrong here...
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3-D Geometry - JEE mains level

How do you use the symmetric form for JEE level questions? What is the exact meaning of taking symmetric form?Take the below question an example https://www.doubtnut.com/qna/649670254...

Center of mass

which method is correct? or better to use?
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center of mass basic concept

(multiple choice correct question)
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coord geo

ind the locus of centre of circle which touches (x-1)^2+(y-2)^2=1 externally and x^2+y^2-2x-8y-83=0 internally
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Acidic grps.

Please do mark the groups which are acidic/basic/neutral and a short explanation.
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help

y is O ignored here
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Straight Lines

yea no idea how to do this
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Semiconductor 4

Why do we have to take 14 volts only?
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Complex Doubt

for this question i first divided and multiplied by 2^30 , that part becomes omega and we have (2/1-i)^30 and now idk how to proceed from here
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Semiconductor

How to know if zener diode has breakdown voltage (5v) across it
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NLM approach good??

isme we will have to make the cases and equation for the 2N downward and then 10N upward separately right
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