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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > The Colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to (a) Decrease in Pie – sigma gap down the group

The Colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to (a) Decrease in Pie – sigma gap down the group

The Colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to (a) Decrease in Pie - sigma gap down the group