The pH of rain water, is approximately :

The complex that has highest crystal field splitting energy ($$\Delta $$), is :

The correct match between Item I and Item II is :

Item - I		Item - II
(A)	Benzaldehyde	(P)	Mobile phase
(B)	Alumina	(Q)	Adsorbent
(C)	Acetonitrile	(R)	Adsorbate

For the following reaction, in the mass of water produced from 445 g of C₅₇H₁₁₀O₆ is :

2C₅₇H₁₁₀O₆(s) + 163 O₂(g) $$ \to $$ 114 CO₂(g) + 110 H₂O(l)