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During a flame test why is calcium''s flame not persistent, while that of strontium is?
Ans) Because it does not have many ions as compared to the Strontium. It is the ions which produce color.
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Acidic nature of monocarboxylic acids (1) Cause of acidic nature (a) A atom of carboxylic acid may be illustrated as a resonance hybrid of the following structures.
Preparation of saturated calomel electrode and determination of standard potentials of electrodes such as Cu 1 Cu, Zn 1 Zn, etc. Comparison of the potential values with values from
The effects that temperature has on the equilibrium position of a reaction can also be explained by using Le Chtelier's Principle. Recall that in an exothermic reaction, heat i
The radius of which of the following orbit is same as that of the first Bohr's orbit of hydrogen atom: (1) He + (n= 2) (2) Li 2+ ( n= 2) (3) Li 2
The number of electrons in c l - ion is: (1) 19 (2) 20 (3) 18 (4) 35 Ans: 18
Sir any method to learn the arrangement of functional group in poly functional compound ????
Chain Lengthening of Aldoses (Killiani-Fischer synthesis) The conversion of an aldose to the next higher member includes the subsequent steps : (a) Creation of a cyanohydrin
polonium crystallizes in a simple cubic unit cell with an edge length of 3.36A. 1. what is the volume of the unit cell? 2. what is the volume of atom in the unit cell? 3. what i
How does crystallography help in study of crystal structure
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