Recently Active Questions

why freshly prepared ferruos sulphate solution is used for NO3- ion test(brown ring test) ...

+ve plate of a capaciyor given a charge of 2*10^-8 c while -ve plate given a charge of -1*10^-8C ... Capacitence of Capacitor is 1.2 *10^-9F... Calculate PD ...

Calculate the density of diamond from the fact that it has face centered cubic structure with two atoms per lattice point and unit cell edge length of 3.569 angstrom. ...

*Image* A ball connected with a string is released at an angle 45° with the vertical. Then acceleration of the box at this instant will be (mass of the box = mass of the ball and the box is lying on a smooth surface) : a) g/ ...

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How to determine motion of a point when work done by it is 0 and why ??? ...

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Plot the graph of sin (xy) = .0001 ...

Ques1) A conducting sphere is placed between two charged par- allel plates . Does the electric field inside the sphere depend on precisely where between the plates the sphere is placed? What about the electric potential insid ...

This question has appeared on an online physics site... (given by Rohan to me) Lets have a tall cylindrical vessel filled with water (radius r, height of water h) and spin it around its axis at angular speed ω. At the centre ...

Plot the graph of sin{x}+cos{x}=0 ...

Q1 If cos-1λ +cos-1μ +cos-1ν=3π then prove that λμ+μν+λν=3 Q2 If 2nΣi=1 sin-1xi=nπ then prove that 2nΣi=1xi=2n ...

*Image* Q3 *Image* ...

A graph plotted b/w molar conductivity of NaCl,HCl,NH4OH *Image* identifyA,B,C i have done the identification job A=HCl,B=NaCl,C=NH4OH but wanted to know why slope A and B are diff ????since both NaCL and HCl are 1:1 electrol ...

100 ml of buffer of 1M NH# and 1M NH4+ are placed in 2 voltaic cells separately.A 1.5A current is passed through both cells for 20min.If electrolyssi of water takes palce.. 2H20 +O2 +4e →4OH- ---------(RHS) 2H2O→4H++O2+4e ...

IN TRIANGLE PQR,S IS ANY POINT ON THE SIDE QR.SHOW THAT PQ+QR+RP>2PS HELP SOLVING IT! ...

If Σsin-1x=π,then prove that x4+y4+z4+4x2y2z2=2(x2y2+y2z2+z2x2) ...

R NCERT TEXTBOOKS REALLY NECESSARY FOR ALL STUDENTS PREAPARING FOR IITJEE?LIKE IF U R FROM STATE BOARD THEN DO U NEED TO FOLLOW THE NCERT SYLLABUS (KEEPING ASIDE THE COMPETATIVE SYLLABUS)COZ ITS PATTERN IS SLIGHTLY DIFFERENT. ...

pls reply .....i m using solomons and peter sykes for organic chem .... as u might be knowing that these books dont hav sums for JEE level .........so can u pls tell me wat shud i do ???i hav RK Gupta [2004 edition ] ........ ...

IF THE BISECTORS OF ANGLES,<ABC AND ACB OF A TRIANGLE ABC MEET AT POINT O THEN SHOW THAT <BOC =90+1/2<BAC. HELP IN SOLVING IT! ...

1) Solve *Image* 2) Solve *Image* ...

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What is the 10000th palindrome? PS: 131, 1441, 1020201 etc are palindromes... which are the same from both sides :) ...

Solve: xy+x+y=23 xz+z+x=41 yz+y+z=27 ...

*Image* my doubt is not Q1 but Q2 how to find overall yield???? ...

y2=4{x} ...

1. In the manufacture of glass,addition of MnO2 gives A.Yellow colour. B.Red colour C.Violet colour D.Pink colour 2. When iodine reacts with NaF,NaBr and NaCl A. It gives mixture of F2,Cl2,Br2 B. gives Cl2 C. It gives Br2 D. ...

write the hydrolysis product *Image* ...

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