muskan

yes, you are right just for general knowledge. thanks for help

Absolutely no. We don't get such homeworks in class 9.

I was reading how methane is extracted from methanol. I came across two reactions. Please complete them for me. a) CH3OH + ZnCl2 + HCl -----------> b) CH3Cl + LiAlH4 -----------------> I don' t know how to complete such reactions. Please help.

ABC is a triangle. P, Q and R are mid- points of AB, AC and BC respectively. AD is the altitude from A to BC. Prove that PRDQ is cyclic.

Consider only "given" and "to prove" and any of the two figures. AB is not equal to AC.

But this is not right.

Answer this question please

crest is 12 of a wavelength. find wavelength,time period, frequency and velocity.

it has no charge

Answer this question please.

answer the question related to class ninth science.

I am a ninth class student. Our teacher explained the topic of molecules in the class. CO2 Molecule is stable and CO3 is charged. But why CO is stable? please explain.

Ab and AC are two chords of a circle of radius r such that AB=2AC. If p and q are the distances of Ab and AC from the centre, prove that 4p^2= p^2 + 3r^2.

I think we must have the weight of air and then we can find it.but how? I don't know it. Please help.

If atmospheric pressure is 1.01*10^5 Pa,how much pressure will the air exert on a window of area 100*50 cm.