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Favourable conditions for electrovalency are:
(1) Low charge on ions, large cation, small anion
(2) High charge on ions, small cation, large anion
(3)High charge on ions, large cation, small anion
(4) Low charge on ions, small cation, large anion
Ans: Low charge on ions, large cation, small anion
Number of unpaired electrons in Mn 4+ is: (1) 3 (2) 5 (3) 6 (4) 4 Ans: 3
Explain and classify vitamins. Name the diseases caused because of lack of any three of them.
Why do the hydrides of O and F in group 16 and 17 respectively show abnormally high melting points and boiling points as compared to other hydrides in their respective groups? Expl
I would like to know why you stop heating the sulphuric acid before placing in the copper oxide in making copper sulphate crystals
Q. Briefly explain about Diffusion of Gases? Ans. The following are some important points on the diffusion of gases: Gas molecules have an average kinetic energy
1-methylcyclohexene Because 1-methylcyclohexene has dissimilar numbers of alkyl branches at the carbons of its double bond, it gives dissimilar products in the two reactions.
Manufacture of acetic acid - Quick vinegar process (a) From ethyl alcohol (Quick vinegar process): Vinegar is 6-10% aqueous solution of acetic acid. It is acquired by fermen
give 2 examples of compounds that are bonded in the following ways (a) Hydrogen bonding (b)Vander waal forces (c) Co-ordinate covalent bonding. Explain with the aid of diagram how
who created or found Styrene
what is the formula for the binary ionic compound formed between sodium and iodine
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