Answer: (d) Titanium.
Explanation:
Ilmenite and rutile, which are abundantly available in certain coastal tracts of India, are primarily rich sources of titanium. Titanium is a valuable metal known for its exceptional strength, low density, and corrosion resistance. It finds extensive applications in various industries, including aerospace, automotive, construction, and chemical processing.
Reference source:
To confirm this information, you can refer to the NCERT textbook "Geography: Contemporary India - I" (Class 9) published by the Government of India. Chapter 5, titled "Natural Vegetation and Wildlife," provides information about mineral resources, including ilmenite and rutile. This source is recommended for UPSC preparation as it is a reliable government-approved textbook.
NCERT textbook link:
http://www.ncert.nic.in/textbooks/flipbook/geo910/flip_geo910.pdf
