A mixture of chlorine & sodium bromide acts as a/an_________________?

Related Mcqs:

1. Bitterns is a/an_________________?

   A. Unsaturated fat
   B. Starting material for the production of iodine
   C. By-product of chlor-alkali industry
   D. None of these

2. Fusel oil is a/an_________________?

   A. Essential oil
   B. Extract from medicinal herbs
   C. Mixture of higher molecular weight alcohols (a by-product obtained during production of
   alcohol from molasses)
   D. None of these

3. Ordinary glass is not a/an_________________?

   A. Amorphous isotropic material
   B. Supercooled liquid
   C. Material with sharp definite melting point
   D. Electrical insulator

4. Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction ?

   A. Oxidation of Na+ ions
   B. Oxidation of Cl- ions
   C. Reduction of Na+ ions
   D. Reduction of Cl- ions

5. 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

6. Wet chlorine gas produced during electrolysis of brine is dehydrated by__________________?

   A. Spraying 66° Be H2SO4 counter current to the flow of the gas
   B. Passing it through a bed of diatomaceous earth
   C. Passing it through a bed of silica gel
   D. None of these

7. Use of chlorine in the treatment of sewage_________________?

   A. Helps in grease separation
   B. Increases the biological oxygen demand (BOD)
   C. Causes bulking of activated sludge
   D. Aids in flocculation

8. Sand and ______________ is fused at 1300°C, to produce sodium silicate ?

   A. Limestone
   B. Soda ash
   C. Coke
   D. Sodium sulphate

9. Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and___________________?

   A. Sulphuric acid
   B. Phosphoric acid
   C. Hydrochloric acid
   D. Hydrofluoric acid

10. Presence of sodium tripolyphosphate (an additive) in synthetic detergent___________________?

    A. Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions)
    B. Inhibits its corrosive effects
    C. Does not allow redeposition of dirt on the cleaned surface
    D. None of these