Which of the following options does not represent ground state electronic configuration of an atom?

(i) 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁸ 4s²

(ii) 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁹ 4s²

(iii) 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s¹

(iv) 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s¹

Find out the number of following orders which are INCORRECT against the mentioned properties:

(i) Ortho hydrogen > Para hydrogen (Stability at low temperature)

(ii) Ethanol > Glycerol (Viscosity)

(iii) D₂ < He (Boiling point)

(iv) HF > H₂O (Melting point)

(v) H₃BO₃ > BF₃ (Melting point)

(vi) NH₃ < SbH₃ (Boiling point)

(vii) H₂O₂ > H₂O (Strength of hydrogen bond)

(viii) H₂O < D₂O (Freezing point)

(ix) $H{F}_2^{\Theta }$  < HF (Strength of hydrogen bond)

(x) D₂O < H₂O (Bond energy)

Consider the following reaction:
(A substituted phenol reacts with H? and CrO?Cl to produce product 'P'.)
The product ‘P’ gives positive acetyl chloride test. This is because of the presence of which of these –OH group(s)?

The number of radial land angular nodes in 4d orbital are, respectively

The spin-only magnetic moment value of species is________× 10^-2 BM. (Nearest integer)

[Given:   $\sqrt[]{3}=1.73]$

Which of the following relation is not correct?