RAS Mains Chemistry, written by Biresh Sharma Sir and Vikas Gupta Sir and published by Ceramic Academy, covers chemistry for the RAS Mains examination. The complete book is written in English (Roman script), with no Hindi content, so it suits candidates who will write the descriptive paper in English. This is the New Edition 2026. The book is completely revised as per the latest syllabus of RAS 2026. Chemistry at the Mains stage is explained rather than solved — the paper asks what a process is and where it applies, in a few marks' worth of writing, not for the numerical and mechanism work a science degree paper sets. A volume written to the notified syllabus supplies the material at that level and length. Key Features: Written entirely in English (English medium, Roman script), no Hindi content Covers chemistry for RAS Mains Completely revised as per the latest RAS 2026 syllabus New Edition 2026 Subject-specific volume for the RPSC RAS Mains descriptive paper By Biresh Sharma Sir and Vikas Gupta Sir, published by Ceramic Academy यह पुस्तक "RAS Mains Chemistry" बिरेश शर्मा सर एवं विकास गुप्ता सर द्वारा लिखित है तथा सिरेमिक एकेडमी द्वारा प्रकाशित है। यह पूर्णतः अंग्रेजी माध्यम (English medium) में है, इसमें हिंदी सामग्री नहीं है। यह नवीनतम संस्करण 2026 है तथा RAS 2026 के नवीनतम पाठ्यक्रम के अनुसार पूर्णतः संशोधित है। यह RPSC RAS मेन्स परीक्षा के अभ्यर्थियों के लिए अत्यंत उपयोगी है।