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Question

How many statements are correct regarding dinitrogen?



A
1, 3 and 2
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B
2 and 4
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C
1, 3 and 4
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D
All the four given statements are correct.
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Solution

The correct option is D All the four given statements are correct.
It is used in the manufacture of ammonia and other industrial chemicals containing nitrogen. such as ammonia, calcium cyanamide etc.
It also finds use where an inert atmosphere​ is required​. Example : In iron and steel ​industry, inert diluent​ for reactive chemicals​
It is used in the fertilizers.
Liquid dinitrogen is ​used as a refrigerant​ to preserve biological materials, food items and in cryosurgery​.

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