For the second period elements the correct increasing order of first ionisation enthalpy is:
Li < B < Be < C < O < N < F < Ne
Li < B < Be < C < N < O < F < Ne
Li < Be < B < C < O < N < F < Ne
Li < Be < B < C < N < O < F < Ne
Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is :
Mg
Ca
Sr
Be
Which of the following is soluble in water?
Br
Sr
Mg
Ba
D.
Ba
'Ba' reacts with water giving soluble hydroxide (Baryata) solution. While Mg and Sr forms insoluble hydroxides and Br2 forms a reddish brown solution with water.