NEET 2019 · ChemistryPrevious Year Question
Match the catalyst with the process: Catalyst (i) (ii) (iii) (iv) Nickel complexes Process (a) The oxidation of ethyne to ethanal (b) Polymerisation of alkynes (c) Oxidation of in the manufacture of (d) Polymerisation of ethylene Which of the following is the correct option?
Answer: (A) (a) i-c, ii-d, iii-a, iv-b. \textbf{Answer:} (a) i-c, ii-d, iii-a, iv-b \textbf{Solution:} catalyses the oxidation of in the Contact process for , so i-c.
- A.(a) i-c, ii-d, iii-a, iv-b✓
- B.(b) i-a, ii-b, iii-c, iv-d
- C.(c) i-a, ii-c, iii-b, iv-d
- D.(d) i-c, ii-a, iii-d, iv-b
Correct Answer
(A) (a) i-c, ii-d, iii-a, iv-b
Solution & Explanation
\textbf{Answer:} (a) i-c, ii-d, iii-a, iv-b \textbf{Solution:} catalyses the oxidation of in the Contact process for , so i-c. is the Ziegler-Natta catalyst used for the polymerisation of ethylene, so ii-d. catalyses the Wacker oxidation of ethyne to ethanal, so iii-a. Nickel complexes catalyse the polymerisation of alkynes, so iv-b. The correct match is i-c, ii-d, iii-a, iv-b.
🎯
43,000+ questions in हिंदी & English · one-tap toggle
Open →📚Practice all NEET Chemistry PYQs chapter-wise →💡Don't get it? Learn the D And F Block Elements concepts →Practice NEET 2019 Chemistry — free, with instant solutions
The app builds a daily goal from your weak topics and brings each question back just before you forget it — so what you solve today turns into marks on exam day.
More NEET PYQ solutions
ChemIdentify the suitable reagent for the following conversion: C6H5COOCH3 -> C6H5CHO (methyl benzoate to benzaldehyde)ChemThe correct order of decreasing acidity of the following aliphatic acids isChemThe major product of the following reaction is: 4-oxo-4-phenylbutanenitrile C6H5-CO-CH2-CH2-CN is treated with (i) CH3MgBr (excess) and then (ii) H3O+.ChemOut of the following complex compounds, which compound will have the minimum conductance in solution?ChemWhich of the following are paramagnetic? A. [NiCl4]^2- B. Ni(CO)4 C. [Ni(CN)4]^2- D. [Ni(H2O)6]^2+ E. Ni(PPh3)4ChemThe correct order of the wavelength of light absorbed by the following complexes is: A. [Co(NH3)6]^3+ B. [Co(CN)6]^3- C. [Cu(H2O)4]^2+ D. [Ti(H2O)6]^3+ChemThe correct order of decreasing basic strength of the given amines is: (N-ethylethanamine = (C2H5)2NH; ethanamine = C2H5NH2; N-methylaniline = C6H5NH(CH3); benzenamine/aniline = C6H5NH2)ChemPredict the major product P in the following sequence of reactions. The starting material is 1-methylcyclopent-1-ene: (i) HBr, benzoyl peroxide; (ii) KCN; (iii) Na(Hg)/C2H5OH P (major). The structures of the options (A)-(D) are shown in the image below: