p block Flashcards
1
Q
preparation of cl
A
mno2+Hcl
kmno4+hcl
pure: ptcl4 heat /aucl3 heat
2
Q
manufacture of cl
A
deacons process-oxdn of hcl with o2 & cucl2
electrolytic process-of nacl
3
Q
electrolytic process of brine solution
A
4
Q
on exposure to sunlight,chlorine water loses its yellow color
A
due to the formation of HCl
5
Q
reacn with nh3
A
nh3(Excess)+cl2–>n2+nh4cl
nh3+cl2(excess)–>ncl3+hcl
6
Q
oxidising and bleaching action
A
cl2+h2o–>hcl+hclo
hclo–>hcl+[o] (this acts as oxidising agent)
color matter+[O]–>colorless matter
7
Q
action of alkalies
A
naoh+ cold dil cl2–>nacl+naclo+h2o; hypochlorite
naoh (conc)+cl2–>nacl +naclo3+h2o where clo3- is chlorates
but
dil naoh+f2–>of2+naf+h2o
conc naoh+f2–> naf+o2+h20
