A 10 grams of a highly volatile organic liquid containing only hydrogen along with carbon, was placed in a 250 mL flask and allowed to boil at atmospheric pressure and a temperature of 100 degrees C. When all of the liquid was turned to vapor, the stopper was pushed down tight as well as it was determined later on that only 0.570 grams of liquid condensed in the flask when the apparatus returned to room temperature. Find out the composition of the liquid.
1. CH2
2. C7H3
3. C9H2
4. C4H4
5. C5H10