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Nitrobenzene is formed as the major product along with a minor product in the reactionof benzene witha hot mixture of nitric acid and sulphuric acid. The minor product consists of carbon: 42.86%, Hydrogen:2.4%, nitrogen:16.67 ...

1.22g of benzoic acid is dissolved in 100 g of acetone and 100g of benzene seperately. Boliing point of the solution in acetone increases by 0.17 degree C, while that inthe benzene increases by 0.13 degree C; Kb for acetone a ...

two equal masses are situated at separation r0. One of them is imparted initial velocity v0 = (Gm/r0)^1/2 Treating motion only under mutual graviation, find the ration of max and min separation between the masses *Image* ...

*Image* am NOT GETTING HOW THEY SAY ONE ROOT LYING .. MEANS PLEASE EXPLAIN THOSE LINES ? ...

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what amount of heat is generated in a coil of resistance r due to chaarge q passing through it if the current in coil decreases to 0 uniformly during a time interval Δt ...

a wire of length l and 3 identical cells of negligible internal resistances are connected in series .due to the current the temp of wire is raised by Δτ in time t .N number of similar cells is now connected in series with a ...

hi friends...i knw u ppl are busy....but sum1 pl explain da scenario wen charge conservation comes into picture....ie kinda ... weak in electrostat...pl explain using 1 example...the conservation of charges in shells and conc ...

which of the following quantities do not change when an ohmic resistor cnnected to battery is heated due to current (a)drift speed (b)resistivity (c)resistance (d)no of free electrons ...

i have some basic doubts ... cyanide ion and iodide ion giver ppt with silver nitrate ???? is iodide better neucleophile than bromide ? which is stronger neucleophile ch3- or nh2- ??? arrange in order of strength of bases [de ...

wat is the basic concept of max power generation and relation b/w r shunt n r load ...

if 3a + 2b + c =7 find the minimum value of 100 (a2 + b2 + c2) ? ...

1) which of these can easily distinguish between 1-butyne and 2-butyne. a) Br, CCl4. b) H2, Lindlar catalyst c) dil H2SO4, HgSO4. d) ammoniacal CU2Cl2 solution. ...

a spaceship orbits the earth at a constant speed along a circular path. when an astronaut inside the spaceship releases an object, it does not move away from him. which of the following is the most accurate reason for this? a ...

A uniform rod of length L,cross-section area A and Young's modulus Y is acted upon by the forces as shown in the figure. *Image* The elongation in the rod is λ (FL/AY). The value of λ is : (A) 4 (B) 3 (C) 11/4 (D) 4/3 ...

Does the angle bisector of the BASE angle in an ISOSCELES triangle pass thru the IN-centre of the circle??? ...

Explain Searle's Method in detail I am pretty sure that a Question on this one is possible! ...

*Image* 14 was easy but how to do questions 15 and 16?, ...

here i will post the doubts of my tests and the questions in which i am struck *Image* *Image* ...

If the greatest value of the term independent of x in expansion of (xsinp + x-1cosp)10 is achieved at P=θ... then the locus of point from which pair of tangents be drawn to x2+y2=4 including an angle θ is A) x2+y2= 4(4+2√ ...

\sum_{n=1}^{2008}\frac{{\sqrt{n^{4}+2n^{3}+3n^{2}+2n+1}}}{n(n+1)} = A) 2008 + 2008/2009 B) 2007 + 2008/2009 C) 2008 + 2007/2009 D) 2008 + 2007/2008 ...

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for a certain metal the K absorption edge is at 0.172 x 10-10m please explain what does this mean also we are given Ka wavelength How to calculate EK i.e. energy of K orbit ...

wat is exchange energy & with ex. ...

For f continuous on \mathbb{R} , find the limit: \lim_{h\to 0}\dfrac{1}{h}\int_a^b \big(f(x+h)-f(x)\big) \mathrm{d}x Remember, f has been said only to be continuous and not differentiable. (rajat, dipanjan, metal: wait for at ...

What is the application of Grignard reagent in tha preperation of amines? ...

1. FIND ALL VAlUES OF m for which mx2 + (m-3)x + 1 <0 for atleast one positive real x ...

photons emmited during transitions between corresponding pairs of levels in He+ and H have the same energy E and same wavelength = hc ------ E tell whether this statement is correct or not If correct , why ...

please check the ques related to fusion and fission they have given ans as (b) & (d) won't it be (b) &(c) please correct me ...

1. char ch; cin.get(ch).get(ch);//How this statement is valid??-2 get() func. 2."this" pointer, random()function // Is it there in the CBSE syllabus 3.pls. illustrate (pls give eg.)scanf and printf statements(especially for o ...