A. Brighten the faint images
B. Remove metallic silver
C. Convert silver chloride to silver
D. Remove unexposed silver halide
Related Mcqs:
- ______________ Nature of hypo (sodium thiosulphate) makes it useful in photography ?
A. Oxidising
B. Reducing
C. Complex forming
D. Photochemical - Sand and ______________ is fused at 1300°C, to produce sodium silicate ?
A. Limestone
B. Soda ash
C. Coke
D. Sodium sulphate - ______________ is obtained as a by-product in the manufacture of sodium hydroxide using brine ?
A. Chlorine
B. Ammonium chloride
C. Sodium carbonate
D. Sodium bi-carbonate - 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 - ______________ process is used for the manufacture of sodium carbonate by ammonia soda process?
A. Ostwald’s
B. Bosch
C. Solvay
D. Haber’s - Which of the following has sodium bicarbonate as its main constituent ?
A. Baking soda
B. Baking powder
C. Washing soda
D. None of these - Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an?
A. Explosive
B. Soap
C. Detergent
D. Analgesic drug - Sodium carbonate (soda ash) is not used in the manufacture of___________________?
A. Fire extinguishers
B. Sugar
C. Baking powder
D. Detergents - Sodium salt of higher molecular weight fatty acid is termed as the ______________________ soap?
A. Hard
B. Soft
C. Metallic
D. Lubricating - 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
