1.

Pick out incorrect statement.

Answer»

`NF_3` molecules has trigonal pyramidal structure
It is practically insoluble in water and is only HYDROLYZED, when an ELECTRIC spark is through a MIXTURE with water vapour
Dipole moment of `NF_3` is more than that of `NH_3`
Nitrogen (II) oxide `(N_2O_3)` is an acidic oxide. passed

Solution :Dipole moment of `NH_(3)(0.49 xx 10^(-29)c.m.)` is more than that of `NF_3 (0.07 xx 10^(-29)Cm)`. This is due to the fact that the directions of the dipole moments of the bonding N-H and non-bonding electron pairs COINCIDE in `NH_3` and, therefore, vector eddition of all dipole moments yield a large resultant dipole moment. In `NF_3` on the contrary, the dipole moments of N-F bonds and of the non- bonding electron pair are in opposite directions, No that they are partially compensated when Hummated.
a) From the above figure, it is clear that `NF_(3)`, has a trigonal pyramidal structure.
B). `N_(2)O_(3)(l)+H_(2)O(l) to underset("Acid")(2HNO_(2)(l))`


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