ALKALI EARTH METAL

Question 1

ARRANGE GRP 2 ELEMENTS IN MP ORDER

Answer 1

BA>CA>SR>BA>MG

Question 2

MG+N2=

Answer 2

MG+N2=Mg3N2 (DIAGONAL RELATIONSHIP WITH Li)

Question 3

REAC OF (II)A WITH CARBON

Answer 3

Be+C=Be2C=(H2O)=CH4 (CHARGE OF Be=-2*2=NO. OF H ATOMS)
M+C=MC2=(H2O)=C2H2 (CHARGE OF M=+2=NO. OF H ATOMS)
M=Mg,Ca,Sr,Ba

Question 4

WHAT IS THE COLOUR WHEN (II)A METALS REACT WITH LIQ NH3

Answer 4

BLUE SOLN DUE TO PARAMAGNETIC ELECTRON

Question 5

Be/Mg + O2=

M+O2=

Answer 5

BeO/MgO

MO2

Question 6

M+H20=

ALSO NAME ELEMENT WHICH DOES NOT GIVE THIS REACTION

Answer 6

M(OH)2+H2

Be DOES NOT GIVE THIS REAC DUE TO ITS INERT CONFIG

Question 7

NAME THE ELEMENT WHICH IS AMPHOTERIC

Answer 7

Be

Question 8

NAME THE ELEMENTS THAT FORMS COMPLEXES AND GIVE REASON FOR THE SAME

ALSO NAME WITH WHICH LIGAND DO THEY FORM COMPLEXES

Answer 8

Be AND Mg DUE TO THEIR SMALL SIZE AND HIGH CHARGE DENSITY

Ca AND Mg FORM COMPLEXES WITH EDTA