C-07-Q090mediumsingle_mcq
In Napthol step 1, the wax-pasted cloth is kept in water before colouring for -
In Napthol step 1, the wax-pasted cloth is kept in water before colouring for -
- a5 minutes
- b10/15 minutes
- c30 minutes
- d1 hour
In Napthol step 1, the wax-pasted cloth is kept in water before colouring for -