A. DDT
B. BHC
C. Parathion
D. None of these
Related Mcqs:
- The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is _________________?
A. Dilute H2SO4
B. Oleum
C. Ultraviolet light
D. None of these - Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at _____________ °C ?
A. 15-30
B. 90-100
C. 250-300
D. < 0 - In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed ?
A. Furnace → converter → absorber
B. Furnace → evaporator → absorber
C. Furnace → converter → evaporator
D. Converter → furnace → absorber - Nitric acid is not used in the manufacture of______________________?
A. Detergents
B. Fertilisers
C. Aqua regia
D. Explosives - Contact process of sulphuric acid manufacture ____________________?
A. Yields acid of higher concentration than chamber process
B. Yields acids of lower concentration than chamber process
C. Is obsolete
D. Eliminates absorber - Bromides contained in hot mother liquor is treated with ______________ during manufacture of bromine from sea water ?
A. SO3
B. Cl2
C. NH3
D. SO2 - Pick out the wrong statement pertaining to the soap manufacture?
A. Transparent soaps are made by cold process
B. Organic pigments are used as colouring materials in the soap manufacture
C. Both laundry as well as toilet soaps are manufactured by hot process
D. Colourless rosin is used in the manufacture of laundry soaps - Solvay process is used for the manufacture of____________________?
A. Caustic soda
B. Soda ash
C. Caustic potash
D. Soda lime - Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process ?
A. NH3
B. NaCl
C. CaO
D. Coke - Manufacture of phthalic anhydride uses ______________ as a catalyst ?
A. Ni
B. Cr
C. V2O5
D. Al2O3
