AIIMS 2019 Chemistry Allotropes of Carbon MCQ Question
Assertion: configuration is more stable than
Reason: has more exchange energy as compared to because 10 & 6 exchanges are possible in & respectively.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
Coke is a carbon-rich material produced from the destructive distillation of coal and is primarily used in the steel manufacturing process as a reducing agent in the extraction of iron from its ore (Fe₂O₃), facilitating the production of molten iron. Carbon black, charcoal, and graphenes, while also allotropes of carbon, serve different purposes; carbon black is mainly used in rubber production, charcoal is utilized for fuel and filtration, and graphenes are explored for advanced materials and electronics. Therefore, only coke is specifically relevant to steel manufacturing, making option A the appropriate choice.
Found an issue with this question?
Related Questions
More from Carbon and its Compounds
More from 2019
A chemical reaction : A + B ⟶ AB, B is acting as limiting reagent then choose the correct option. The limiting reagent is:
Variations caused by mutation, as proposed by Hugo de Vries, are:
In case of paper chromatography, there are both stationary and dynamic phases present. So, the statement that it is a stationary phase is incorrect.