Related Questions

Synthetic detergents are made from
A Sodium stearate
B Sodium salt of benzene sulphonic acid
C Sodium salt of benzene carboxylic acid
D Sodium palmitate
Virus/es inactivated by lipid solvents and detergents is/are
A Influenza virus
B Rabies virus
C SARS-CoV-2
D Poliovirus
E Rotavirus
Detergents used for cleaning clothes and utensils contain
A Nitrates
B Bicarbonates
C Sulphonates
D Bismuthates
The advantage of detergents over soaps is
A detergents are soluble in water
B detergents could not givemuch lather
C detergents give lather even with hard water
D soaps give lather with only soft water
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
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
Presence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes
A Fire hazards
B Explosion hazards
C Persistent foam
D Depletion of dissolved oxygen
Detergents are
A Sodium salts of fatty acids
B Sodium salts of sulphonic acids
C Sodium salt of benzoic acid
D None of the above
Detergents clean surfaces on the principle of
A Viscosity
B Surface tension
C Elasticity
D Floatation
Bio-degradable detergents
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

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