Recently Active Questions

Both calculations and experimental evidence indicate that the dihedral angle beetween the methyl groups in the gauche conformation of n-butane is actually somewhat larger than 60°. How would you account for this? src: morris ...

in the BrF5 question the asked the number of F-Br-F bonds having 90 degree angle many say 0 many say 8 but i think answer must be 4 because of the lone pair distortion the four F in the corners of square are going to be eleva ...

*Image* where the hell did the H of OH and the other O of NO2 disappear? Mr. India or what? src: NCERT CHEM class 12 PART-2 ...

Let f:R→R be a differentiable function such that f(x)=x2+e-x∫01 et f(t) dt q1 f(x) increases in ? q2 Value of ∫01 f(x) dx ...

Errr...i'm stuck somewhere. Can someone help me out? In the diagram, a vertical rod 'A' is attached to a platform which is rotating with angular velocity \omega _{1} around the X -axis. A second rod 'B' is attached to the fir ...

*Image* but i thgt answer is Na+ > Mg+2 > Li + > Be+2 isn't it ??? ...

If A is a non empty set, then R ⊂ A × A is said to be a relation on A. A relation R on 'A' is said to be (i) Reflexive if aRa, i.e. (a, a) ∈ R ≠a ∈ A. (ii) Symmetric if aRb then bRa i.e. if (a, b) ∈ R then (b, a) â ...

guys post all your number sequence problems in this thread... with Manmay's idea To start off... for practice P.S. the hidden part contains the answers... I) For the following find the ODD MAN OUT 1) 10,14,16,18,21,24,26 a)26 ...

WHEN A COFFEE CUP,WITH COFFEE UPTO ITS RIM, IS KEPT IN A ROOM WITH A TEMPERATURE OF 50°C, ...

Show that a(a-b)(a-c)+b(b-c)(b-a)+c(c-a)(c-b) cannot be negative This i saw in a website online.. i liked this one because it does not even require AM GM ;) ...

∫(x-a)(x-b)(x-c).........(x-z)dx is equal to 1. constant 2.5c+5d+x 3.0 4.none of these ...

20 ) Danger always involves (A) Enemy (B) Attack (C) Fear (D) Help 13) Find the sentence that has an error (A) In management as u rise higher , (B) the problems u face become more and more unstructured and (C) u can't just fa ...

What is the path of an electron if the magnetic filed is shown as in the image. The field is outward and has values B and 2B on either sides of the line. The region is infinite on both sides.... Trace the shape of the path of ...

More Integration.... 1) \int{\frac{{dx}}{{\sqrt{\cos^{3}(x+\alpha )\sin (x+\beta )}}}} 2) \int{\left({x^{7m}+x^{2m}+x^{m}}\right)}\left({2x^{6m}+7x^{m}+14}\right)^{1/m}dx 3) \int{\frac{{dx}}{{\sqrt x+\sqrt{1-x}}}} (Same comme ...

IIT JEE study materials study modules for IIT-JEE ( brilliant tutorials)[ 21 books ] + YG files ( I and II) + compendum (contains all the concpets and important formulaes) + chapterwise step by step solved papers from the yea ...

1.What exactly is meant by BACK BONDING ? 2.What is Perhydrol ? 3.PBr4 and PI4 doesnot exist according to my theory book and reason given is that Pb4+ is a strong oxidant and Br- and I- are strong reductants [ and so Pb4+ can ...

I have written JEE this year and i have lost half an hour in the first paper due to that goof up in the ORS sheet and question paper due to erasing and writing back the answers twice. I strongly am in favour of re exam. IT IS ...

Let N=\left\{1,2,3...n \right\} be a set of elements called voters. Given that S \amalg N means S is a subset of the set N. Let \C=\left\{S:S\amalg N \right\} be the set of all subsets of N. Members of C are called coalitions ...

you know what the blue box beneath reads "WebSite Status: Total 1893 Registered users, Total 869551 PageViews, Total 114184 Visitors. Online Status : Currently 14 guests and 1 users Online. Maximum online was, 272 guests and ...

Directions : Read the following passage carefully and answer the questions that follow. Some prophets of doom assert that we shall soon exhaust the Earth’s resources or pollute ourselves to death. Optimists assert that Eart ...

*Image* The image above is a koch Snowflake starting with a equilateral triangle of side 1 unit Step One. Start with a large equilateral triangle. Step Two. Make a Star. 1. Divide one side of the triangle into three equal par ...

1) Train A starts from X at 12:00 p.m & reach at Y on 2:30 p.m & train B starts from Y at 12:15 and reach at X on 2:15 so,when both trains crosses each other? 2) Two trains are travelling from point A to point B such that the ...

edited ...

*Image* on reaction with alc. KOH gives ...

Sir, Is it better to do BIOTECHNOLOGY (B.Tech. 4 Yr),CIVIL ENGINEERING (B.Tech. 4 Yr).,METALLURGICAL & MATERIALS,PRODUCTION & INDUSTRIAL, from any old IITs or COMPUTER SCIENCE & ENGINEERING,ELECTRICAL ENGINEERING(B.Tech. 4 Yr ...

the 50 KG homogeneous smooth sphere rests on the 30 degree incline A and against the smooth vertical wall B.calculate contact forces at A and B. ...

1) Three wheels make 36, 24, 60 rev/min. Each has a black mark on it. It is aligned at the start of the qn.When does it align again for the first time? 14 20 22 5 sec 2) In a race from pt. X to pt Y and back, Jack averages 0 ...

In normalized floting point representation 0.8642E02 \div 0.2562E02 gives : how to do this ?? ab ye kaunse chapter se related hai... Pehle bar aisa question dekh raha hun ...

Can you all please have a look at this survey? We are trying an online library too.. So just want your feedback... [url=https://spreadsheets.google.com/viewform?formkey=dHJVYWJDeXIzOGlvS1ZvaHFtY1VtU0E6MQ]Online book store sur ...

we are allowed to exchange any 2 rows and any 2 coloumns of a 8x8 chessboard whose squares are alternately painted black and white in the usual manner.By a sequence of such changes, can we obtain a board whose left half is bl ...