Which, of the following orbitals are not possible and why? 1p, 2s, 2p, 3f

Which of the following isomers is more volatile and why o-nitrophenol or p-nitrophenol?

Which of the following sets of numbers are in proportions: p,pq, p^2q , q^2

Arrange the following orbitals in increasing order of energy. 4f,5p,4s,3d

Identify which of the following sequence is in A.P. Also find the first term and common difference if they form an A.P. 1^2, 2^2, 3^2, 4^2,....

If a,b,c,d are in G.P show that each of the following three term are also in G.P 1/(a^2+b^2),1/(b^2+c^2),1/(c^2+d^2) .

Identify which of the following sequence is in A.P. Also find the first term and common difference if they form an A.P. -6,-2,2,6,......

Determine the terms of the following A.P.’s as specified. 100th term of 1, 3, 5, 7, ....

Factorise the following expressions. p^2 + 6p+ 8

Factorise the following expressions. p^2 + 6p - 16

Among the following pairs of orbitals which orbital will experience the larger effective nuclear change? 2s & 3s (ii)4d& 4f (iii)3d&3p