Four statements are given below: (P) B_(2) solid does not exist, boron have basic buildingB_(12)icosahedral units made up of polyhedron having 20faces nad 12 corners. (Q) In alum each metal ion is surrounded by six water molecules. ( R) Graphite is used as dry lubricant in machines running at high temperature in place of oil. (S) Fullerene contains twenty, six-membered rings and twelve, five-membered rings. The correct statements are:

Four statements are given below: (P) B_(2) solid does not exist, boro

1.	Four statements are given below: (P) B_(2) solid does not exist, boron have basic buildingB_(12)icosahedral units made up of polyhedron having 20faces nad 12 corners. (Q) In alum each metal ion is surrounded by six water molecules. ( R) Graphite is used as dry lubricant in machines running at high temperature in place of oil. (S) Fullerene contains twenty, six-membered rings and twelve, five-membered rings. The correct statements are:
Answer» P,R and S P and S P,Q,R and S Q and S Answer :C