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*Image* This reaction sequence can start with a :- (a) 1° alcohol (b) 2 ° alcohol (c) 3° alcohol (d) Phenol ...

Is there any relation between basisity and nucleophilicity? Can we compare them? ...

1) The dissociation const of monobasic acids A,B,C and D are 6 X 10 -4, 5 X10 -5 , 3.6 X 10 -6 and 7 X10 - 10 respectively. pH values of their 0.1 molar aqueous solution are in the order (a) A >B> C >D (b) D>B> ...

If cosx+cosy+cosz=0 & cos3x+cos3y+cos3z=0 the prove that cos2x.cos2y.cos2z≤0 x,y,zε R All the sirs plz dont post the soln to this one[1] ...

prove that 2/ \pi < sin x/x <1 for x e (0, \pi /2 ) ...

Q1 why vinyl alcohol is not directly polymerised to form poly vinyl alcohol ??? Q2what type of polymer is this ?? -CH2 -O -[CH2 - O -] - ...

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Ques) If Ck is a circle of eqn x2 + y2 = k2 ; k belongs to N, a point moves k units on Ck in anticlockwise direction then goes to C k+1 and so on. If point starts frm (1,0) and Ist time crosses the +ve x-axis on circle Cn , t ...

Suppose a hollow sphere is taken. The Sphere is now filled with a non-viscous fluid. What is the change in the Rotational Kinetic Energy ?? ...

Well , how about some good questions to wake you up all night ? I think these are quite intriguing to attempt , so I will definitely post the solutions after a day or two ---- 1> ( a , 1 / a ) , ( b , 1 / b ) , ( c , 1 / c ...

Which has highest MP? NaCl KCl MgO BaO How? ...

PROVE : 2<f(n)<3 if n→N n ≥ 2 and f(n)=(1+1/n)n ...

Solve for x : (x+3)^{5}-(x-1)^{5}\geq 244 PS: the ans given is x \in (-infinity,-2] U [0,infinity) i thought of solving by taking x +1 = y ...so dat we can get some symmetry ...but ans nahi match hora ....pls see f any 1 can ...

i created this for those who want to revise old chapters..............admins plzzz take pains to create a sub topic named revision.....yeah gravitation is my second best chapter......y not start with it??????????? ...

IF TWO BLOCKS GLUED TOGETHER ARE ATTACHED TO A SPRING & ONE OF THEM FALLS INSTANTANEOUSLY ,,,,,,,,,,,THEN FIND AMPLITUDE OF OSCILLATION OF FIRST *Image* ...

find the values of 'a' for which the function f(x)=(a+2)x3 -ax2+9ax-1 is monotonically decreasing for x eR iknow its very easy but i m not getting the ans i did f'(x)≤0 and afetr taht D<=0 not getting ans with it any oth ...

Which metal cannot be obtained by electrolysis of their aq. salt solutions: a)Ag b)Mg c)Au d)Cr well,shouldn't it be both Mg and Cr? answer given is only Mg. ...

A polynomial f(x) of n-th degree satis es f(k) = 2k for k = 0, 1, 2,.... n Find f(n + 1) (I was wondering if I should put it in the olympiad section.. but then with the last few discussions on polynomials that we have.. I tho ...

The pink violet colour ok KMnO4 is due to: (a) d-d transition (b) p-d transition (c) charge transfer (d) Both (a) & (c) ...

a point source of constant power is brought from infinity 2wards adisc along its axis.P is apoint on the axis.Radiation pressure at P 1st increases den decreases.Why? ...

Can centripetal/centrifugal forces be never applied to bodies on earth ? ...

Prove (-1) x (-1) = 1 algebraically .... Soln. can be given by anyone other than ATGS :-) ...

Can we always assume g varies with height as g'=g(1- 2h/r ) ??? ...

Choose correct statement 1. All diastereomeric centres are stereogenic centres 2.Cis-trans isomers contains stereogenic centres 3. Gauche form of ethylene glycol is more stable than staggared form 4. Enantiomers contains ster ...

Multi answer Q. Consider a curve 13[(x-2)2+(y-3)2] = (2x+3y-5)2. Tangents are drawn from (1,1) to this curve. If a conic S=0 having eccentricity half the eccentricity of the conic xy+x+y=0 always touches above tangents then t ...

Find the sum to n terms of the series : 3/4 + 15/16 + 63/64 + .......= (a) n-(4^n/3) + 1/3 (b) n-(4^n/3) - 1/3 (C) n-(4^-n/3) +1/3 (D) n-(4^-n/3) - 1/3 ...

A man standing on a platform holds weights in his outstretched arms. The system is rotated about a central vertical axis. If the man now pulls the loads inwards close to his body, then : A) angular vel. of the sys. will incre ...

A solid homogeneous sphere is moving on a rough horizontal surface partly rolling and partly sliding. During this kind of motion of the sphere : A) total K.E of the sphere is conserved B) angular momentum of the sphere about ...

*Image* Plz explain how to do this ...

Is it easy to melt one cube of ice in isolation or a few cubes placed in contact with each other?? ...