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*Image* Predict the product(actually which is not tough....i was too lazy to draw i) and give the mechanismt. ...
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which is more stable carbene......singlet or triplet....explain with reason!!! ...
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Generally people miiss out chapters like surface che, and all but there can be conceptual questions too. e.g. Q)explain why there would be no observable " Tyndall Effect" when diameter of dispersed particle is much smaller th ...
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the depression in freezing point (for the same amount of each) is: acetic acid<trichloroacetic acid<trifluoroacetic acid...explain NCERT Class XII part 1 pg. 61 q)2.31 ...
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CArefully see the interplay of ortho effect,h-bond and mesomeric effect Arrange the following in increasing acidity 1) a. o-nitroaniline b. *Image* ...
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1)dissolution process is endothermic 2)during dissolution there is interactions between H2O and there the dissolving chemical or bonds are formed.......whenevr bonds are formed energy is released assert if 1) or 2) both is tr ...
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state true false: 1)H=G+TS {where symbol have their usual meanings} 2)CuCl2 reacts with H2S to form a mettalic sulphide!!! 3)pka+ pkb=pkw at all temperatures ...
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*Image* .....the angle of the prism is 1/Ï€ ...disscuss the rays coming out of the prism ...
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*Image* Find the VA-VC ...
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Do show thw method!!! *Image* ...
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find the magnetic dipole.....do show the method *Image* ...
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*Image* suppose there is fluid filled along the length of the tube and density is p angular velocity is w area of cross section is a and there is an orifice at the end find the velocity of the fluid coming out!!! ...
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*Image* take that a fluiid is present upto the brim....and there is asmall orifice as shown.....find y such that range of the fluid that comes out of the orifice is max.. ...
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A thin tube of uniform cross section is sealed at both ends. It lies horizontally, the middle 5 cm containing mercury and the two equal ends containing air at the same pressure "P". When tube is held at an angle 60° with the ...
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prove for all real x1 and x2 (x12+x12)/2>[(x2+x2)/2]2 ...
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maximum no. of ways of distributing 15 distinct objects to three persons such that..the no. of objects received by the persons are in A.P. Ans (15)! / (5!)3 ...
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HCV pg 35 q 33 A uniform tube closed at one end,ccontains at one end contains a pallet of mercury 10cm long.When the tube is kept verticallywith the closed end upward,length of the air colummn trapped is 20 cm. Find the lengt ...
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HCV pg 35..q 30 a vertical cylinder of height 100cm contains air at a constant temperature.the top is closed by a frictionless light piston.The atmosspheric pressure is equal to 75 cm of Hg.mercury is slowly poured over the p ...
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Prove that nCm+n-1Cm+n-2Cm+.....+mCm=n+1Cm+1 ...
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k-1Ck-1 + kCk-1 +........+n+k-2Ck-1=? Answer- n+ k-1Ck ...
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total no. of triangles with side length a,b,c if the triangle satisfies the condition that a<=b<=c. is answer 1/4 (c+1)2 if c is odd 1/4 c2 if c is even ...
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there is a set A={a1.a2.....an}.the total no. of subsets with even no. of elements answer 2n-1 ...
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Can anybody show the solution to this question..... total no. of integral solution to abcd=1050 ...
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total no of functions f from the set A={0,1,2} to set B={0,1,2,3,4,5,6,7} such that f(i)<=f(j) for all i<j.i,j ε A...is answer 10C3 ...
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total number of 6 digit number formed by 0,1,2,3,4,8.no digits should repeat ....is a)216 b)150 c)116 d)98 ...
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if an=Σ 1 / nCr,then Σ (n-2r) / nCr=??{answer in terms of an} ...
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find the conjugate hyperbola of xy-2x-4y+4=0 ...
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if a sample contains contains Na2CO3,,,,will it titrate with dil. HCl?? ...
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the speed of a particle moving in a circle of radius=2m is given by v= t2+4 .find the radial and tangential acceleration of the particle ...
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A 1.5 kg block is kept stationary on a horizontal surface.A force f= 4 - x2 starts acting on it on the COM in the horizontal direction.the max K.E of the block between 0<=x<=2m is(where <= denotes greater than or equ ...
