C-07-Q091mediumsingle_mcq
In Napthol step 2 the cloth is doused in coloured water for -
In Napthol step 2 the cloth is doused in coloured water for -
- a1 minute
- b2/3 minutes
- c5 minutes
- d10 minutes
In Napthol step 2 the cloth is doused in coloured water for -