Which of these species is aromatic?
In which pair, the stronger bond is formed in the first species~
I .O2, O2−1 II. N2,N2+ III.NO+, NO−1
Which of the following graphs represents exothermic reaction ?
(a) Only I (b) Only II (c) Only III (d) I and II
In the product 5mab,
(i) 5 is the numerical coefficient of mab.
(ii) the coefficient of ab is 5m.
(iii) m, a and b are the only factors.