Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 General Knowledge Indian Geography Indian Economic and Human Geography
Consider the following pairs:
| S.No | Type of Hydrogen | Source |
| 1. | Grey hydrogen | Extracted from hydrocarbons (natural gas) and the excess CO2 is not captured. |
| 2. | Blue hydrogen | Produced through electrolysis of water using renewable power. |
| 3. | Green hydrogen | Extracted from hydrocarbons and emissions/by-products (CO2) are captured and stored |
Which of the pairs given above is/are correctly matched?
1
1 only
2
2 and 3 only
3
3 only
4
1 and 3 only
5
Question Not Attempted