General Science · Inventions and Discoveries
अलेक्जेंडर पार्क्स ने अपना पहला मानव निर्मित प्लास्टिक, पार्केसिन, किस वर्ष पेटेंट कराया था?
- 11870
- 21850
- 31907
- 41862✓
सही उत्तर देखें
1862
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Preparing for General Science?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Inventions and Discoveries?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in General Science · Inventions and Discoveries