ас
[c]
[d]
dissolving powdered sulfur in carbon
disulphide
[UNN 2010/11]
CHEMICAL COMBINATION
Elements P has atomic number of 12 while
element Q has an atomic number 15.
Combination of P and Q gave a compound
PQ, the respective values of m and n are
[a]
2 and 2
[b] 2 and 3
[c]
3 and 2​