Question : A person who is colourblind cannot distinguish between

Option 1: Black and yellow

Option 2: Red and green

Option 3: Yellow and white

Option 4: Green and blue

Question : What is the colour of the flame when unsaturated hydrocarbons burn?

Option 1: Blue

Option 2: Red

Option 3: Green

Option 4: Yellow

Question : Which light is least effective in photosynthesis ?

Option 1: Blue light

Option 2: Green light

Option 3: Red light

Option 4: Sunlight

Question : A man with colour blindness will see red as

Option 1: Yellow

Option 2: Blue

Option 3: Green

Option 4: Voilet

Question : Directions: Two different positions of the same dice have different colours - White, Red, Blue, Yellow, Green, and Black - written on them. Identify the colour on the face opposite the face showing Blue.

Option 1: White

Option 2: Black

Option 3: Green

Option 4: Yellow