Which of the following is the strongest material on earth?

Correct option is A

The correct answer is (a) Carbyne.
· Carbyne is considered one of the strongest materials known. It is a linear form of carbon and is theorized to be stronger than both graphene and diamond when it comes to tensile strength. Carbyne is essentially a chain of carbon atoms held together by either double or alternating single and triple atomic bonds, which gives it remarkable strength.
· Theoretical studies suggest that carbyne’s tensile strength is greater than any other known material, and it could potentially revolutionize materials science, particularly in the fields of electronics and construction, if it can be stably produced and manipulated.
Additional details on other options:
· Aerographene and Aerographite: Both are forms of graphene, known for their light weight and high surface area but not primarily for unmatched strength. They are excellent at absorbing light and dealing with mechanical forces but do not match carbyne in terms of tensile strength.
· Soap stone: Soapstone is a talc-based rock known for its ability to absorb and retain heat and its ease of carving. It is relatively soft compared to other stones and certainly not known for strength on a scale with advanced carbon materials.