SSC SSC JE Mechanical 2025 Mock Test Series (Paper 1 & Paper 2) Refrigeration and Air Conditioning Refrigerants

निम्नलिखित में से हाइड्रो-कार्बन प्रशीतक R-170 का रासायनिक सूत्र कौन सा है?

1
C2 H6 
2
C3 H3 
3
C3 H6 
4
C4 H10
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