Q1. What is the general formula for alkanes?A. \( \ce{C_nH_{2n+2}} \)B. \( \ce{C_nH_{2n}} \)C. \( \ce{C_nH_{2n-2}} \)D. \( \ce{C_nH_n} \)
Q2. Which hydrocarbon with 5 carbon atoms requires the least amount of oxygen per mole for complete combustion?A. PentaneB. PenteneC. CyclopentaneD. Pentyne
Q3. Which hydrocarbon with molecular formula \( \ce{C8H12} \) contains three degrees of unsaturation and no rings?A. OcteneB. OctatriyneC. CyclooctadieneD. Ethylbenzene
Q4. Which hydrocarbon produces 4 moles of \( \ce{CO2} \) and 5 moles of \( \ce{H2O} \) per mole upon complete combustion?A. \( \ce{C4H10} \)B. \( \ce{C5H12} \)C. \( \ce{C3H8} \)D. \( \ce{C4H8} \)
Q5. Which hydrocarbon has a higher boiling point than its straight-chain isomer with the same molecular formula \( \ce{C5H12} \)?A. PentaneB. 2-MethylbutaneC. 2,2-DimethylpropaneD. Cyclopentane
Q6. Which hydrocarbon with 4 carbon atoms has the maximum number of hydrogen atoms possible?A. ButeneB. ButaneC. CyclobutaneD. Butyne
Q8. Which hydrocarbon with 10 carbon atoms has the maximum possible branching and the lowest boiling point among its isomers?A. DecaneB. 2-MethylnonaneC. 2,2-DimethylnonaneD. 2,2,3,3-Tetramethylhexane
Q9. What is the product of complete combustion of \( \ce{C4H10} \)?A. \( \ce{CO + H2} \)B. \( \ce{CO2 + H2O} \)C. \( \ce{C + H2O} \)D. \( \ce{CO2 + H2} \)
Q10. Which hydrocarbon has the molecular formula \( \ce{C4H8} \)?A. ButaneB. PropaneC. PentaneD. Butene