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Qus: At 287K, which of the following is a gas?
Qus287K पर निम्न में से कौन सी गैस है?
A. प्रोपेनल
B. एसीटैल्डिहाइड
C. नि:संक्रामक
D. एसीटोन
Solution
C. Formaldehyde
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