Identify the reaction from following having top position in EMF series (Std. red. potential) according to their electrode potential at 298 K.
(1) K+ + 1e– → K(s)
(2) Mg2+ + 2e– → Mg(s)
(3) Fe2+ + 2e– → Fe(s)
(4) Au3+ + 3e– → Au(s)
If you are commenting for the first time, please read the guidelines.
If you are answering for the first time, please read the guidelines.
Identify compound (A) in the following reaction: (1) Benzoic acid (2) Benzoyl chloride (3) Toluene (4) Acetophenone
Identify the correct statement from the following. (1) Lithium chloride is deliquescent and crystallises as a hydrate, LiCI·H2O. (2) The order of hydration enthalpies of alkaline earth cations Be2+ < Mg2+ < Ca2+ < Sr2+ < Ba2+ (3) Lithium and Magnesium show ...
Identify the incorrect statement from the following : (1) The overall decrease in atomic and ionic radii from lanthanum to lutetium is called lanthanoid contraction (2) Zirconium and Hafnium have identical radii of 160 pm and 159 pm, respectively as a ...