Which is the most suitable dye for synthetic fibres?
Acid dye
Azoic dye
Pigment dye
Mordant dye
- In contact process, SO3 is absorbed in 97% H2SO4 and not in water, because
- Use of hydrated lime in water treatment
- Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent.
- Raw materials used for producing __________ cement does not contain iron oxide.
- Which of the following processes can remove both temporary as well as permanent hardness of water?
- Kopper-Totzek coal gasifier
- Black liquor is converted into white liquor by
- Chemical name of soda ash is
- Phenolic antiseptics are added in the __________ soap.
- The process involved in converting rubber into a thin sheet or coating it on fabric is called
- Nylon-66 is manufactured from
- Chalcopyrite is the main ore of
- Air used in aerobic fermentation must be sterilized, otherwise the
- Le-Blanc process is a primitive process for the manufacture of
- Which of the following is a constituent of vinegar?
- Impurities present in brine is normally removed by treatment with
- Permanent hardness of water is due to the presence of calcium & magnesium
- Sea weeds are an important source of
- Which of the following is not a pyrite ore?
- __________ is an ore of lead.
- The yield of tar from high temperature carbonisation of dry coal is about __________ percent.
- Solvay process is used for the manufacture of
- Which of the following is not required in the manufacture of soda ash by Solvay process?
- Pick out the wrong statement.
- Which of the following has sodium bicarbonate as its main constituent?
- Oxidation of SO2 to SO3 is favoured by
- Naphthols are derivates of
- The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.
- Percentage of glycerine present in the spent lye obtained during soap manufacture is about
- The function of gypsum addition during cement making is to