Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc ?

Related Mcqs:

1. Bleaching action of bleaching powder is due to its _____________ properties ?

   A. Reducing
   B. Oxidising
   C. Disinfecting
   D. None of these

2. The end bleaching agent used to move last traces of colour bodies from the pulp is ____________________?

   A. Chlorine dioxide (ClO2)
   B. MgO
   C. SO2 gas
   D. Mercaptans

3. 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

4. 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

5. 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

6. Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on ____________________?

   A. Slaked lime
   B. Soda lime
   C. Calcium perchlorate
   D. None of these

7. Bleaching of paper pulp is done with__________________?

   A. Activated clay
   B. Bromine
   C. Chlorine or chlorine dioxide
   D. Magnesium sulphite

8. 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

9. Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its________________?

   A. Poor oxidation stability and high gum forming tendency
   B. Greater tendency of decomposition at elevated temperature
   C. Hydrolysis tendency in presence of water
   D. All A, B. and C

10. Hollander beater used during paper pulp manufacture does not facilitate the ______________ of fiber?

    A. Cutting
    B. Fibrillation
    C. Hydration
    D. Strengthening