Exams › JEE Main › Chemistry

Butene-1 may be converted to butane by reaction with

1. Sn – HCl
2. Zn – Hg
3. Pd/H2
4. Zn – HCl

Correct answer: Pd/H2

Solution

Reducing the C=C of butene-1 to butane requires addition of H2 over a metal catalyst, i.e. Pd/H2 (catalytic hydrogenation). Sn-HCl, Zn-Hg, and Zn-HCl do not hydrogenate isolated alkenes.

Related JEE Main Chemistry questions

• Arrange the following carbanions in decreasing order of basicity: (A) CH3CH2−, (B) CH2=CH−, and (C) HC≡C−.
• In acid-catalyzed hydration of alkenes, all alkenes except ethene generally give rise to which type of alcohol product?
• Which of the following organic compounds has the same hybridization as the carbon atom in its combustion product, CO2?
• What is formed when CH3MgX reacts with CH3C≡CH?
• Which of the following reagent sets can be used to convert propene into 1-propanol?
• When ethyne (H–C≡CH) is treated first with (1) NaNH2 in liquid NH3 and then with (2) CH3CH2Br, the product X is formed. If X is again subjected to the same two-step sequence, the product Y obtained is:

⚔️ Practice JEE Main Chemistry free + battle 1v1 →