Wave nature of electrons was demonstrated by :
Schrodinger
De-Broglie
Davisson and Garmer
Heisenberg
The bond order of O2+ is the same as in :
N2+
CN-
CO
NO+
A.
N2+
O2+ (15 e-) = K : K+ (2s)2 (*2s)2 (2px)2 (2py)2 (2pz)2 (*2py)1 (*2pz)0
Hence , bond order = (10 - 5) = 2.5
N2+ (13e-) = KK* (2s)2 (*2s)2 (2px)2 (2py)2 (2pz)1
Hence , bond order = (9 - 4) = 2.5
A gas can expand from 100 mL to 250 mL under a constant pressure of 2 atm .The work done by gas is :
30.38 joule
25 joule
5 k joule
16 joule
If the r.m.s. speed of a gaseous molecule is x m/sec at a pressure P atm , then what will be the r.m.s. speed at a pressure 2P atm and constant temperature ?
x
2x
4x
x/4
How does the ionisation energy of 1st group elements vary ?
Increases down the group
Decreases down the group
Remains unchanged
Variation is not regular