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A hydrocarbon z with molecular mass 78 on combustion gave 3.384g of carbon (IV) oxide and 0.693g of water. Determine the molecular formula of Z and draw its structure. [H=1, C=12,
Write chemical tests to distinguish among: a) Phenol and Benzoic acid b) Propanal and propanone c) Formic acid and Acetic acid
The frequency of one of the lines in Paschen series of hydrogen atom is2.340x10 11 Hz. The quantum number n 2 which produces this transition is: (1) 6 (2) 5
Steric effect - Organic Chemistry On account of the existence of bulkier groups at the reaction centre, they makes problem as mechanical interference and with the result the at
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For the dissociation equilibrium of formic acid, HCO 2 H(aq) ↔ H + (aq) + HCO 2 - (aq), the acid dissociation constant at 298.15K has the value K a = 1.77 *10 -4 . (a) Find t
The ratio among the radius of cation and the radius of anion is known as Limiting radius.
#IONISATION ENERGY OF ELEMENTS..
what are the classification of colloids ?
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