(i) `P+C("carbon")+Cl_(2) to Q+CO uaarr`
(ii) `Q+H_(2)O to R+HCl`
(iii) `BN+H_(2)O to R+NH_(3) uarr`
(iv) `Q+LiAlH_(4) to S+LiCl+AlCl_(3)`
(v) `S+H_(2) to R+H_(2) uarr`
(vi) `S+NaH to T`
(P,Q,R,S annd T do not represent their chemical symbols)
Q. Compound T is used as a/an:
A. oxidising agent
B. complexing agent
C. bleaching agent
D. reducing agent
