10 mL 3种气态烃的混合物和足量氧气混合点燃爆炸后恢复到原来状态(常温常压),气体体积共缩小了20 mL(不考虑CO2的溶解)。则这3种烃可能的组合是
A.CH4,C2H4,C3H6任意体积比 |
B.CH4,C3H6,C2H2保持C3H6︰C2H2=1︰2(物质的量之比) |
C.C2H6,C4H6,C2H2同条件下体积比为2︰1︰2 |
D.C3H8,C4H8,C2H2质量比为11︰14︰26 |
10 mL 3种气态烃的混合物和足量氧气混合点燃爆炸后恢复到原来状态(常温常压),气体体积共缩小了20 mL(不考虑CO2的溶解)。则这3种烃可能的组合是
A.CH4,C2H4,C3H6任意体积比 |
B.CH4,C3H6,C2H2保持C3H6︰C2H2=1︰2(物质的量之比) |
C.C2H6,C4H6,C2H2同条件下体积比为2︰1︰2 |
D.C3H8,C4H8,C2H2质量比为11︰14︰26 |
试题篮
()