A. Can be readily oxidised
B. Pose problem in sewerage plant
C. Have an isoparaffinic structure
D. Should not be used as it spoils the cloth
Related Mcqs:
- Carboxymethyl cellulose (CMC) is added in detergents to_________________?
A. Prevent redeposition of soil on cleaned surface
B. Act as optical brightening agent
C. Inhibit corrosion in washing machines made of aluminium
D. None of these - Fluorescent dyes are added in detergents to__________________?
A. Act as fabric brightener (by converting ultraviolet light to visible light) thereby improving the
whiteness appearance of white fabrics
B. Attain distinctiveness from other brands
C. Act as tarnish inhibitor for metals like German silver
D. None of these - Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc ?
A. Sodium silicate
B. Sodium borate
C. Sodium tripolyphosphate (STPP)
D. Caustic soda - Carboxymethyl cellulose (CMC) is added in detergents to act as a/an___________________?
A. Surfactant
B. Builder
C. Optical brightening agent
D. Anti soil redeposition agent - A bio-catalyst produced by living cells which acts independent of the cell is called a/an_______________?
A. Substrate
B. Enzyme
C. Nutrient
D. None of these - Lithophane is ___________________?
A. Explosive
B. White lead
C. Filter aid
D. ZnS (white pigment) - Basic oxide is absent in ___________________ glass?
A. Flint
B. Pyrex
C. Quartz
D. All A, B. & C - Saponification value/number of an oil or fat is a measure of its ___________________?
A. Fatty acid content
B. Degree of unsaturation of the fatty acids present in it
C. Average molecular weight
D. Insoluble fatty acid content - Fats as compared to oils have ___________________?
A. More unsaturated glycerides of fatty acids
B. Less unsaturated glycerides of fatty acids
C. Much higher reactivity to oxygen
D. Lower melting point - Potassium is kept & transported under ___________________ ?
A. Water
B. Liquid ammonia
C. Kerosene oil
D. Alcohol
