Pick out the wrong statement.
Chamber process of sulphuric acid manufacture produces pure acid of concentration < 80%
Contact process of sulphuric acid manufacture produces pure acid of concentration ≥ 98%
75% oleum can be produced by distillation of 20% oleum
Contact process of sulphuric acid manufacture uses nickel as the catalyst
- Proximate analysis of coal determines its __________ content.
- Alkylbenzene sulfonate (ABS) is a
- Mercury cells for caustic soda manufacture, compared to diaphragm cells
- Solvent used for extraction of oil is
- Hydrogen gas is not produced commercially (for nitrogenous fertiliser manufacture) by
- Which of the following is not produced commercially from sea water?
- Which of the following is not required in the manufacture of soda ash by Solvay process?
- Phthalic anhydride is used
- Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled…
- Lime and soda ash are added to water to remove
- Sugar content in sugarcane on cane basis is about __________ percent by weight.
- Rancidity of the fatty oil can be reduced by its
- Which of the following is an ore of iron?
- The combustion reaction, C + O2 = CO2, is
- Use of chlorine in the treatment of sewage
- Teflon is
- Which of the following is not a pyrite ore?
- Which of the following has sodium bicarbonate as its main constituent?
- Flexible foam (for mattresses) is usually made of
- Which of the following paper does not require a filler during manufacture?
- Phenolic antiseptics are added in the __________ soap.
- Starting material for the commercial production of ethyl alcohol in India is
- Chemical name of Grignard reagent is
- Salt is the basic raw material for the manufacture of
- Litharge is
- Shrinkage volume in cement setting does not depend upon the
- In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms…
- L.D. converter is used in the production of
- H2S is scrubbed from refinery gases by absorption using
- Which of the following is a constituent of coffee?