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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 ...
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mole concept 1.who started symbolic representation of elements which we use today a) dalton b) berzelius ...
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find the values of k for which l x-1l + l x -2 l + lx + 1 l + l x +2 l = 4k has integral solutions ans in my book is 2 , 3 ,4 ,5 ..............why not one? ( matrix match type) srry i hv edited it now ..........plz proceed no ...
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if sound level at a place is increase by 30Db pressure bcums 4x times . find x ...
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1.a plot of gibbs energy vid extent of reaction has a)a minimum at equilibirium b) a max at equilibirium c) + slope at eq d) - slope at eq 2. if half life of a reactant decreases wen temp is changed from T1 to T2 a) it is exo ...
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pls give structure of all isomers of the complex [ Co (NH3)5 (NO2) ] (NO3) ...
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pls solve it *Image* ...
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sir... i sent my iit form on 3 dec to iit guwahati ..after dat i checket the status three times....each time i got the notification dat the hardcopy of ur application form has been received here....................& wen today ...
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HOW MUCH BIOMOLECULES & POLYMERS ARE USEFUL IN JEE PREPARATIONS??? WHAT ARE MOST IMPORTANT TOPICS IN JEE ORGANIC???? PLZ REPLY ...
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what is velocity constant 'k' of a reaction????? ...
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why the reaction 194 0 194 Au + e -------> Pt 79 -1 78 is called K electron capture????????? ...
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1.... why gamma rays do nt effect photographic screen despite hving high frequency ?????/ is it due to their non material nature????..........wat are constituent particles of gamma rays???? ...
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mod (vector a) =a & mod(vector b ) =b ..................then prove that {(vector a)/a^2 - (vector b)/b^2}^2 = {( vector a - vector b)/ab}^2 ...
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sir ..........the photograph i hv taken for my iit form doesnt have white background.................wat shud i do? shud i go for another photo? the background is blue ...
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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? ...
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IF TWO BLOCKS GLUED TOGETHER ARE ATTACHED TO A SPRING & ONE OF THEM FALLS INSTANTANEOUSLY ,,,,,,,,,,,THEN FIND AMPLITUDE OF OSCILLATION OF FIRST *Image* ...
