Hydrocarbons questions
384 published questions with worked solutions.
- Which hydrocarbon decolourises alkaline KMnO_4 solution but does **not** give any precipitate with ammoniacal silver nitrate?
- Acetylene can be converted into a higher alkyne using the following sequence(s) of reactions:
- The process by which straight-run gasoline is cracked and rearranged in order to increase its octane number is called
- The correct boiling-point order for corresponding (same-carbon-number) hydrocarbons is
- Which statement about alkanes is correct?
- A *vic*-dihalide, on treatment with zinc dust, gives
- Direct fluorination of alkanes is not practically carried out because
- Acetylene is **not** used in the manufacture of
- HC HBr A HBr B [ alc. ] KOH C NaNH _2 D. D is
- The number of acidic hydrogen atoms in but-1-yne, HC –CH_2CH_3, is
- Ethane can be freed (purified) from an impurity of ethylene by washing the gas mixture with
- Normal alkanes can undergo (practical, laboratory/industrial-scale) sulphonation if they contain
- Ethylene is used in making
- Which of the following is **not** correct about the reaction CH_2=CH_2 + Br_2 NaI(aq.) ?
- Which of the following will **not** react with acetylene?
- 3-Methylpent-2-ene, CH_3–CH=C(CH_3)–CH_2CH_3, reacting with HOCl, gives predominantly
- The action of Br_2 on cyclopentene gives
- The order of appearance of fractions with rising temperature during the refining (fractional distillation) of crude oil is
- Propene, on reaction with methylene iodide (CH_2I_2) in the presence of a Zn–Cu couple (the Simmons–Smith reaction), gives
- Household gas, or liquefied petroleum gas (LPG), mainly contains
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