CBES Board Class 10 MCQ Quiz Hub

Chemistry Hydrocarbons multiple choice questions set 1

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1. When two carbon atoms share two electron pairs then they form




2. All are wrong about alkenes, but that they are




3. Loss of hydrogen halide is called




4. Which of the following is given off during ripening fruits and vegetables?




5. Acetylene is also called




6. Oxy-acetylene torches can produce temperature as high as




7. Oxy-acetylene torches can produce temperature as high as




8. Oxy-acetylene torches can produce temperature as high as




9. Chloroform is also called




10. The molecular formula of ethane is




11. Which of the following is used as antifreeze in automobile radiators?




12. What is the term used for the reaction of a substance with oxygen or air that causes the rapid release of heat and the appearance of a flame?




13. In alkanes (saturated hydrocarbons) each carbon atom forms




14. Which of the following is used as an anesthetic?




15. How does chlorine react?




16. Which of the following are saturated hydrocarbons?




17. How does iodine react?




18. Which of the following is not true about lighter alkanes?




19. What is the color of the flame with which most alkanes burn?




20. What type of reaction do alkynes undergo across the triple bond?




21. What is produced by the complete combustion of an alkane?




22. What is the physical state of higher alkanes?




23. What is given by the incomplete combustion of methane?




24. The reaction in which one chlorine atom becomes attached with one carbon and the other one with other carbon atom is called




25. What is the term used for the process in which there is an addition of nascent hydrogen?




26. The simplest alkane is