Question : The colour of the plants is green due to the presence of:
Option 1: Urea
Option 2: Carbon dioxide
Option 3: Chlorophyll
Option 4: Oxygen
Correct Answer: Chlorophyll
Solution : The correct option is chlorophyll.
Chlorophyll is the pigment that gives plants their distinctive green hue. A family of pigments known as chlorophyll is essential to photosynthesis, the process by which plants, algae, and certain microorganisms transform light energy into chemical energy for the production of food. Although there are other forms of chlorophyll, chlorophyll-a, and chlorophyll-b are the most prevalent and crucial for photosynthesis.
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Question : Cooking gas is a mixture of:
Option 1: methane and ethylene
Option 2: carbon dioxide and oxygen
Option 3: butane and propane
Option 4: carbon monoxide and carbon dioxide
Question : Ozone consists of which of the following?
Option 1: Oxygen only
Option 2: Oxygen and Nitrogen
Option 3: Hydrogen and Carbon
Option 4: Oxygen and Carbon
Question : Which among the following is added to commercial nitric acid to make it coloured?
Option 1: Carbon dioxide
Option 2: Sulphur dioxide
Option 3: Coloured impurities
Option 4: Nitrogen dioxide
Question : Which of the following gases is used in a bulb?
Option 1: Hydrogen
Option 3: Carbon monoxide
Option 4: Argon
Question : Which among the following gases is also known as ‘Laughing Gas’?
Option 1: Sulphur dioxide
Option 2: Nitrogen oxide
Option 3: Carbon dioxide
Option 4: Carbon monoxide
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