Chemistry Gk QUESTIONS AND ANSWERS :: part5 : 41 to 45
Following Multiple choice objective type questions and answers for gk in hindi will help you as a free online coaching for your hindi written exam preparation for 2024. These are useful study materials collected from previous year question papers. :
41.पेन्सिल का लेड है ? |
| चारकोल |
| कोयला |
| ग्रेफाइट |
| इनमें से कोई नहीं |
42.सभी जैव योगिकों का अनिवार्य मूल तत्व क्या है ? |
| ऑक्सीजन |
| कार्बन |
| नाइट्रोजन |
| गन्धक |
43.भारी जल एक प्रकार का है ? |
| मन्दक |
| ईंधन |
| शीतलक |
| अयस्क |
44.खाना पकाने के तेल को किस प्रक्रिया द्वारा वनस्पति घी में परिवर्तित किया जा सकता है ? |
| आसवन |
| उपचयन |
| हाइड्रोजनीकरण |
| इनमें से कोई नहीं |
45.सामान्य किस्म का कोयला है ? |
| बिटुमिनस |
| पीट |
| लिग्नाइट |
| कोयला |
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