1.Marcela told her grandson,"miguel, never to play with gasoline. "Why do you think she does not allow him to do it? A.because gasoline is volatile B.because gasoline is viscous C.because gasoline is flammable D.because gasoline is malleable 2.Marcy's car stopped at the road.She found out that her car has ran out of feal.Which compound must she buy? A.gasoline B.kerosene C.lubricating D.water 3.Why is it important to know the properties of common liquid materials? A.to know the of the liquids B.to know the advantages of the material C.to know how these liquids affect people D.to know possible danger from this kind of material 4.Which hydrocarbon compound has a triaple bond in the molecule? A. ethane B. methane C. propene D. propyne 5.Emmanuel cut his finger accidentally when he was cutting his nails. He has to apply something on his wound so that it will not get infected. Which compound should be use? A. acetone B. formalin C. isopropy alcohol D. water
