MPSC Rajyaseva 2013 GS Paper 1 — Question 63
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कोळशाचे ____________ अवस्थेमध्ये रूपांतर करून त्याचा अतिशय कार्यक्षम व स्वच्छ ईंधण म्हणून वापर करता येतो. / Coal can be made more efficient and cleaner fuel by converting it into _________.
1)द्रव / Liquid form
2)द्रव-घन मिश्रण / Liq - solid mixture
3)वायू / Gaseous form✓ Correct
4)द्रव-वायू मिश्रण / Liq - gas mixture
Coal can be converted into gaseous or liquid fuels (like producer gas, water gas, or synthetic natural gas via gasification/liquefaction) making it a cleaner and more efficient fuel.