Question : What is the reason for the use of Sodium Thiosulphate in Photography?
Option 1: Reaction with light
Option 2: Ability to form complexion
Option 3: Oxidising behaviour
Option 4: Reducing behaviour
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Correct Answer: Ability to form complexion
Solution : The correct option is the ability to form complexion.
Sodium Thiosulfate (Na2S2O3), known as hypo, is a main ingredient in photography because of its ability to produce a complexion. Its capacity to produce soluble silver thiosulfate complexes with unexposed silver halide crystals makes it useful in photography. This intricate structure makes it possible to extract the unexposed crystals from the light-sensitive material during the fixing stage of the photography process.
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Question : What is the chemical name of table salt?
Option 1: Potassium bromide
Option 2: Potassium chloride
Option 3: Sodium chloride
Option 4: Sodium bromide
Question : Directions: Select the option representing the correct order of the given words as they appear in an English dictionary. 1. Reason 2. Realize 3. Reader 4. Reap 5. Reaction 6. Rearrange
Option 1: 5, 3, 2, 4, 1, 6
Option 2: 5, 3, 2, 6, 4, 1
Option 3: 5, 3, 2, 4, 6, 1
Option 4: 5, 2, 3, 4, 6,1
Question : Select the correct passive form of the given sentence. We all enjoyed the light show.
Option 1: The light show was being enjoyed by all of us.
Option 2: The light show was enjoy by all of us.
Option 3: The light show is enjoyed by all of us.
Option 4: The light show was enjoyed by all of us.
Question : Which of the following elements does not belong to group 1 of the modern periodic table?
Option 1: Sodium
Option 2: Radium
Option 3: Potassium
Option 4: Lithium
Question : Goitre is caused due to the deficiency of_______.
Option 1: iodine
Option 2: sodium
Option 3: iron
Option 4: calcium
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