Chemistry · Industrial Chemistry
सीमेंट बनाने के लिए निम्नलिखित में से किस मिश्रण को तप्त किया जाता है?
- 1टिन और सीसा
- 2तांबा और जस्ता
- 3लोहा और कोयला
- 4चूना-पत्थर और मृत्तिका (क्ले)✓
सही उत्तर देखें
चूना-पत्थर और मृत्तिका (क्ले)
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