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int{cos 2x.sin 4xdx} equals ...

added Q20 , Q21 , Q22 Q1) If KMF can be written as LLH then RMS = a) SLR b) SLU c) SSU d) SUS Q2) If corden can be written as zrogbq then what can be written as pxivro a) mulmul b) sulsul c) munmun d) srspql Q3) if QDXM can b ...

Phosphorous can form PH3 but no PH5 . why??? ...

Find the slope of the curve plotted between P V s T for closed container of volume 2 lit having same moles of gas ...

How will you get one fox,one chicken,one insect to cross over a river carrying them one at a time?{When alone fox eats chicken,the chicken eats the insect}. ...

A square root of 2i is ...

For a positive integer n, the expression {(1 - i)^n}{left( {1 - frac{1}{i}} ight)^n} equals ...

Arrange these compounds in order of increasing {S_N}2 reaction rate *Image* ...

which of the following is the correct order of ionization energy 1. Be+>Be 2. Be>Be+ 3. C>Be 4. B>Be ...

In PCl5, the bond angles in equatorial & axial planes are ...

Addition of B{r_2} on C{H_2} = C{H_2} in presence of NaCl (aq) gives ...

An atom of one element A has four elements in its outermost shell, and that of B has six electrons in the outermost shell. The formula of the compound formed by these two will be ...

*Image* The large block m1 is 10 kg, and the smaller block m2 is 1 kg. The applied force, F is 33 N.Find contact force between the two bodies (in newtons) ...

int {frac{{dx}}{{sin x + sin 2x}}}Â = ...

int {frac{{dx}}{{{{(x - 1)}^2}(x - 2)}}}Â = ...

Normal reaction = ...

The first ionization potential of Na, Mg, Al, Si are in the order: ...

A uniform but time-varying magnetic field B(t) exists in a circular region of radius a and is directed into the plane of the paper, as shown. The magnitude of the induced electric field at point P at a distance r from the cen ...

Supposing surface is frictionless, acceleration = ...

Weight of the body is: ...

please give an example of rearrange reaction. ...

A block is given certain upward velocity along the incline of elevation α.The time of ascent to upper point was found to be half the time of descent to initial point.The co-efficient of friction between block and incline is: ...

*Image* AB is a secant which intersects a circle with centre O at the points C and D such that AC=BD. From A, B two tangents AR and BS are drawn to meet the circle at the points P and Q respectively( as given in the diagram). ...

What is the geometry of XeOF3 ...

Arrange the following in order of increasing diople moment (I) Toluene (II) m-dichloro-benzene (III) o-dichlorobenzene (IV) p -dichlorobenzene ...

Arrange the following resonating structures of formic acid in order of decreasing stability mathop {mathop {H - mathop {mathop Climits^{||,} }limits^OÂ - OH}limits_{} }limits_{{ m{I}},,,}Â leftrightarrow mathop {mathop {H - m ...

Leaving tendency of the following in increasing order is : *Image* ...

rank the alkyl halides in decreasing order of reactivity in the Williamson reaction 1.( CH3)3CCH2Br 2. ClCH2CH=CH2 3.ClCH2CH2CH3 4.BrCH2CH2CH3 ...

Find the next term: 3, 8, 15, 24, 35, ___ ...

The value of {i^{1 + 3 + 5 + ... + (2n + 1)}} is ...