Question : The element which is required by the plant in large quantity:
Option 1: Calcium
Option 2: Nitrogen
Option 3: Photophorus
Option 4: Sulphur
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Correct Answer: Nitrogen
Solution : The correct option is - Nitrogen
Nitrogen is a crucial macronutrient for plants since it aids in the synthesis of the molecules that make up chlorophyll. It is an essential component of amino acids, which are used by plants to make proteins and enzymes. Nitrogen is used in plants' photosynthetic process. As a result, plants with enough nitrogen will experience rapid growth and development as well as high rates of photosynthesis.
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Question : The most abundant element by number in the living system is:
Option 1: Nitrogen
Option 2: Hydrogen
Option 3: oxygen
Option 4: carbon
Question : Chemical name of bleaching powder is
Option 1: Calcium chlorate
Option 2: Calcium hypochlorite
Option 3: Calcium chloro hypochloride
Option 4: Calcium bi chloride
Question : Which mineral salt is dissolved in a major amount in ocean water?
Option 1: Calcium chloride
Option 2: Calcium carbonate
Option 3: Sodium chloride
Option 4: Calcium sulphate
Question : When Lead nitrate is heated, which of the following gases is produced?
Option 1: Nitrogen oxide
Option 2: Lead dioxide
Option 3: Nitrogen dioxide
Option 4: Lead oxide
Question : Which of the following is caused by the higher concentration of nitrogen and phosphorus ?
Option 1: Eutrophication
Option 2: Hardness
Option 3: Alkalinity
Option 4: Acidity
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