KCET · Chemistry · Hydrocarbons
The reagent ' \( X \) ' used for the following reaction is
- A Ni
- B \( \mathrm{Pd} / \mathrm{C} \)
- C \( \mathrm{LiAlH}_{4} \)
- D \( \mathrm{Na} / \mathrm{Liquid} \mathrm{NH}_{3} \)
Answer & Solution
Correct Answer
(B) \( \mathrm{Pd} / \mathrm{C} \)
Step-by-step Solution
Detailed explanation
The reaction is,
Partially deactivated palladised charcoal (Pd/C) with \( \mathrm{H}_{2} \) is known as Lindlar's catalyst. Alkenes thus obtained have cis-
configuration.
Partially deactivated palladised charcoal (Pd/C) with \( \mathrm{H}_{2} \) is known as Lindlar's catalyst. Alkenes thus obtained have cis-
configuration.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- The letter ' \(\mathrm{D}\) ' in D-glucose signifiesKCET 2010 Medium
- The standard emf of a galvanic cell involving 2 moles of electrons in its redox reaction is \(0.59 \mathrm{~V}\). The equilibrium constant for the redox reaction of the cell isKCET 2011 Easy
- Which one of the following is wrongly matched?KCET 2010 Easy
- The IUPAC name for tertiary butyl iodide isKCET 2008 Easy
- For hydrogen - oxygen fuel cell at one atm and \( 298 \mathrm{~K} \)
\( \mathrm{H}_{2}(g)+\frac{1}{2} \mathrm{O}_{2(g)} \rightarrow \mathrm{H}_{2} \mathrm{O}(l) ; \Delta \mathrm{G}^{\circ}=-240 \mathrm{~kJ} \)
\( \mathrm{E}^{\circ} \) for the cell is approximately,
(Given \( \mathrm{F}=96,500 \mathrm{C} \) )KCET 2014 Medium - In the titration of potassium permanganate \(\left(\mathrm{KMnO}_4\right)\) against Ferrous ammonium sulphate (FAS) solution, dilute sulphuric acid but not nitric acid is used to maintain acidic medium, becauseKCET 2025 Medium
More PYQs from KCET
- \( M n^{2+} \) compounds are more stable than \( F e^{2+} \) compounds towards oxidation to their \( +3 \) state,
becauseKCET 2016 Easy - A glass tube is open at both the ends. A tuning fork of frequency \(f\) resonates with the air column inside the tube. Now the tube is placed vertically inside water so that half the length of the tube is filled with water. Now the air column inside the tube is in unison with another fork of frequency \(f^{\prime}\). ThenKCET 2007 Hard
- Among the following, which is least acidic?KCET 2008 Easy
- A particle of mass 500 g is at rest. It is free to move along a straight line. The power delivered to the particle varies with time according to the following graph
The momentum of the particle at \(t=5 \mathrm{~s}\) isKCET 2024 Medium - Which of the following gives positive Fehling's solution test?KCET 2016 Easy
- At a metro station, a girl walks up a stationary escalator in \(20 \mathrm{~s}\). If she remains stationary on the escalator, then the escalator take her up in \(30 \mathrm{~s}\). The time taken by her to walk up on the moving escalator will beKCET 2020 Easy