Question

गंधकाम्ल का निर्माण सम्पर्क विधि द्वारा कैसे किया जाता है ? संक्षेप में लिखें।
How is sulphuric acid prepared by contact​

Answer 1

Explanation:

Contact process, modern industrial method of producing sulfuric acid; it has largely replaced the chamber, or lead-chamber, process. ... Sulfur dioxide and oxygen, passed over a hot catalyst, unite to form sulfur trioxide, which in turn combines with water to make sulfuric acid