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1 g of a moist sample of KCl And KClO3 was dissolved in water and made up to 250 ml. .25 ml of the solution was treated with SO2 to reduce the chlorate to chloride and excess SO2 was removed by boiling . The total chloride wa ...
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How many litres of SO2 has to be passed through HClO3 to reduce 16.9 g of it to HCl.. Ans 13.44 ...
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15 ml of a gaseous hydrocarbon was required for combustion in 357 ml of air ( 21% of O2 by volume ) . If the gaseous products occupied 327 ml (at NTP) what is the formula of the hydrocarbon )... Ans c3h8 ...
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2 g of P4 reacts completely with 2 g of o2 to produce P4O6 and P4O10... find the weight of P4O6 and P4O10 produced.? ...
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Integrate ∫ 1/1+x4 limits are from 0 to infinity.. Somebody Pls try this sum , I am aware this has been discussed earlier but i cant find the thread.. if anyone can find it pls post the link here , i'll be grateful.. ...
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1 ) if iiiiii...∞ = a+ib prove that tan 1/2 pi a = b/a and a2+b2=e-pib... 2) if z1 and z1 are the roots of the equation αz2+βz+γ=0 prove that |z1|+|z2| = 1/|α|[ |-β+√αγ|+|-β-√αγ|] ...
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anniline substituted with a methyl group in the ortho position is a weaker base than unsubstituted annilin.... this is given in solomons .... the reason mentioned is ortho effect. I feel the methyl group in the ortho position ...
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+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 ...
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A Ring of radius 'r' and has a charge of 'q' distributed uniformly over it's length . a small portion 'x' is cut of from the ring where x<<r . Find the Electric field due to the remaining portion at the center of the ri ...
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A Ring of radius 'r' and has a charge of 'q' distributed uniformly over it's length . a small portion 'x' is cut of from the ring where x<<r . Find the Electric field due to the remaining portion at the center of the ri ...
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The nth therm of a sequence in given by nn/n! .... Show that this sequence converges and find it's limit... ...
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The following is a system of quadratic equation with a,b,c being real and a≠0..... ax12+bx1+c=x2 ax22+bx2+c=x3 ax32+bx3+c=x4 ax42+bx4+c=x5 . . . . . . . . axn-12+bxn-1+c=xn axn2+bxn+c=x1 Answer the following questions.... Q ...
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This question is given in arihant... Prove that the min value of the expression x2+3y2+2xy-6x-3y is -11 Any hints on how to solve this ? ...
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Plot the graph of sin^-1( 2x/1+x2 ).... ...
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Plot The graph of y = sin x/ 1+tan2x + cos x/ 1+cot2 x ...
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All those who have passed out from class XII this year that is 2009 and are going to give IIT next year please post ur name.... May be we can keep in touch...,cuz it's v depressing to be alone and think ur the only one who is ...
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In the past 2 years i met different people , some with very strange habits like writing all formulae 15 times bfore they can sort of remember it etc..... But one of the most common habits of many of my friends which i came ac ...
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*Image* I heat a the string of a pendulum .... Definitely it's time period will change ...... it will increase ... but will the time lost in one day be the same as the time lost in 1 week ..... If no how do i calculate it ... ...
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∫(x2/(xsinx+cosx)2)dx pls give some hints..... ...
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please solve this sum..... *Image* ...
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∫([3+2cosx)/(2+3cosx)2]dx ...
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A tiny electric dipole of dipole moment p is placed at a distance r from an infinitely long wire , with it's p normal to the wire. If the linear charge density of the wire is λ , the electrostatic force acting on the dipole ...
