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Q) Inside the sun four hydrogen nuclei combine to form a helium nucleus by which cycle?Ans) Proton-proton cycle.
How many gaseous elements are there in the s block of modern periodic table? What are they??
Substitution reactions Replacement of a molecule or set/group of the substrate by any another type of atom or group is termed as substitution reactions. Examples :
How sodium carbonate can increase surface area of a catalyst
Examples of amperometric titrations
Streptomycin: It was discovered in the year 1944 by Waksman. Streptomycin is successful against tuberculosis. It is as well used for other general infections such as ears, thro
Why li 2 CO 3 decomposed at a lower temperature whereas Na2CO3 at higher temp?
I read that in the first transition series,the stability of +2 oxidation state decreases from Sc to Cu.but,I observed that as we move along the 3d -series,the stability increases i
Hess''s law
introduction
asighanment
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