A. Azoic dyes are mostly applied on cotton fabrics
B. Basic dyes (e.g. amino derivatives) are applied mostly to paper
C. Mordant dyes are applied mainly to wools
D. None of these
Related Mcqs:
- Pick out the wrong statement ?
A. Wine, rum & Vodka are prepared by the formulation of fruit juice, sugar beet & rye
respectively
B. Protein catalysts are called enzymes
C. The rate of chemical reaction is independent of the concentration of reactants at high
concentration of enzymes
D. Total sugar content in molasses is about 10% - Pick out the wrong statement?
A. Dry process is used for the manufacture of cement, when the raw material is blast furnace slag
B. Portland cement is made employing wet process
C. Gypsum is added to Portland cement to lengthen its setting time
D. None of these - 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 - Pick out the wrong statement ?
A. Cold rubber (SBR) is superior as compared to hot rubber (SBR)
B. Polymerisation temperature can modify the properties of SBR
C. Production of cold SBR employs lower pressure as compared to that of hot SBR
D. None of these - Pick out the wrong statement ?
A. Catalytic hydrogenation of carbon monoxide produces methyl alcohol
B. In nylon-6, the number 6 represents the total number of carbon atoms in the ring
C. Raw materials for DDT manufacture are benzene and chlorine
D. Ethanolamines are produced by using ammonia and ethylene oxide as raw material - Pick out the wrong statement ?
A. Fibrillation of fibre during paper manufacture is done to develop the strength in paper
B. Alkali consumption in digestion/cooking of bamboo is measured in terms of permanganate
number
C. Bagasse fibre contains both lignin & cellulose
D. Presence of sodium sulphate in pulp makes the pulp bleachability poor - Pick out the wrong statement?
A. Conversion of SO2 to SO3 in Monsanto-4 pass converter is about 98%
B. The chemical formula of oleum is H2S2O7, which is formed by saturating sulphuric acid with
sulphur trioxide
C. Vitriol oil is nothing but technical sulphuric acid
D. Decomposition of sulphuric acid on heating does not start before its boiling - Pick out the wrong statement pertaining to nitric acid ?
A. About 90% of nitric acid is manufactured by Ostwald’s process
B. It is a strong mono basic acid which reacts with almost all the metals except noble metals
C. Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO2)
D. Arc process of nitric acid manufacture is economical as compared to Ostwald’s process - Pick out the wrong statement?
A. Eosin requirement in tallow soap is about 40-50% which fastens the lather formation, softens
the hard soaps and increases its cleansing action
B. Soap powder is prepared by mixing soap with hydrated sodium carbonate
C. Detergents differ from soaps in their action in hard water
D. Tarnish inhibitor (e.g., Benzotriazole) is added in soap to facilitate the removal of stains due
to tea, blood etc - Pick out the wrong statement ?
A. DDT is manufactured by the condensation of chlorobenzene with chloral at 30°C in presence
of oleum, which is a highly exothermic reaction
B. Chloral is obtained by the chlorination of ethyl alcohol
C. Insecticides acting on the insects through the respiratory system are called fumigants
D. Benzene hexachloride is not a contact insecticide
