GENERAL KNOWLEDGE

GK

BASIC GENERAL KNOWLEDGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following chemicals is useful in photography?
A
Silver bromide
B
Sodium chloride
C
Aluminium hydroxide
D
Potassium nitrate
Explanation: 

Detailed explanation-1: -Compound ‘AgBr’ is used in photography. Three silver compounds used in photography are silver chloride (AgCl), silver bromide (AgBr), and silver iodide (AgI).

Detailed explanation-2: -In Photography Film The most well-known use of bromine, is in making photographic films. Silver bromide is light-sensitive and is used to manufacture photography plates. Its microscopic particles when exposed to light, undergo a change as a result of chemical reaction.

Detailed explanation-3: -NaBr is used in photography as a sensitizing agent in the form of sodium bromide paper. It is also used as a preservative in foods and as a disinfectant.

There is 1 question to complete.