Given below are pairs of elements, Select the relatively immobile pair of elements that play a structural function also:-
ACa++ and Mg++
BK+ and Mg++
CC1- and Ca++
DCa++ and K+
ACa++ and Mg++
BK+ and Mg++
CC1- and Ca++
DCa++ and K+
Related Questions:
During nitrogen fixation, ammonia is first oxidized to nitrite which is further oxidized to nitrate and the reactions are given below
2NH3+302 → 2NO2-+ 2H+ +2H20.....(i)
2NO2-+02→ 2NO3- ......(ii)
The reaction (i) is facilitated by the action of: