liquification of noble gases is quite difficult.It is due to the fact that there are only weak vander waal's forces which hold atoms together, but due to increase in these forces down the group the ease for liquification increases down the group.
Wednesday, February 12, 2020
Tuesday, February 11, 2020
What are "pyro" oxy acids?
The term "Pyro" use for those oxy acid which are formed by
removal of one water molecule from two molecules of same oxy acid and resulting
product is also an oxy acid then the product acid is named with prefix "Pyro"
For Examples:
H3BO3 (√), H2CO3 (√), H4SiO4 (√), HNO3 (×), HPO3 (√), HPO4 (√), H2SO4 (√), HCl4 (×)
(×) "Pyro" form not possible.
(√) "Pyro" form possible.
(1) In general those oxy acids are formed “pyro” acid which contains
atleast two hydrogen atoms.
(2) In general all the “pyro” oxy acids contain
oxy-linkage except "Pyro sulphurous acid"
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