Physics · Building Materials
साधारण पोर्टलैंड सीमेंट में किस रासायनिक घटक का प्रतिशत सबसे अधिक होता है?
- 1आयरन ऑक्साइड
- 2मैग्नीशियम ऑक्साइड
- 3एल्युमिना
- 4चूना (कैल्शियम ऑक्साइड)✓
सही उत्तर देखें
चूना (कैल्शियम ऑक्साइड)
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