Chemistry MCQs

Q52. What is the chemical formula for Rock salt?

Q52. What is the chemical formula for Rock salt?  1) NaCl 2) KCl 3) MgCl2 4) BaCl2 The correct ans…

PKR Publishers March 19, 2023

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Chemistry MCQs

Q51. Which combination of the gases are called Synthesis gas?

Q51. Which combination of the gases are called Synthesis gas? The correct answer is Option 2. Carbon monoxid…

PKR Publishers March 16, 2023

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Chemistry MCQs

Q50. Reaction of phenol with chloroform and NaOH gives?

Q50. Reaction of phenol with chloroform and NaOH gives? The correct answer is Option (3). The…

PKR Publishers March 16, 2023

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Chemistry MCQs

Q49. Reaction of acetophenone with zinc amalgam affords?

Q49. Reaction of acetophenone with zinc amalgam affords? The correct answer is Option (4) . The r…

PKR Publishers March 16, 2023

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Chemistry MCQs

Q48. The major product X of the below reaction?

Q48. The major product X of the below reaction? The correct answer is Option (2) . The reaction is …

PKR Publishers March 16, 2023

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Chemistry MCQs

Q47. What will be the major product in the below reaction?

Q47. What will be the major product in the below reaction? The correct answer is Option (1) . The react…

PKR Publishers March 16, 2023

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Chemistry MCQs

Q46. Which is not an electrophile?

Q46. Which is not an electrophile? The correct answer is O pti on (4).

PKR Publishers March 14, 2023

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Chemistry MCQs

Q45. Among the below carbonium ions which is more stable?

Q45. Among the below carbonium ions which is more stable?   Solution: The correct answer is option (1). T…

PKR Publishers March 14, 2023

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Chemistry MCQs

Q44. Which of the product will form as a major product in the reaction of propene with HBr?

Q44. Which of the product will form as a major product in the reaction of propene with HBr? n-P…

PKR Publishers March 13, 2023

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Chemistry MCQs

Q43. What will be the product when benzene reacts with propene in the presence of AlCl3?

Q43. What will be the product when benzene reacts with propene in the presence of AlCl3? Propylben…

PKR Publishers March 13, 2023

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Chemistry MCQs

Q42. The reduction of benzonitrile with LiAlH4 affords?

Q42. The reduction of benzonitrile with LiAlH4 affords? Benzylamine Benzaldehyde Toluene None…

PKR Publishers March 13, 2023

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Chemistry MCQs

Q41. The product formed in reaction of aniline with K2Cr2O7 and H2SO4 is?

Q41. The product formed in reaction of aniline with K2Cr2O7 and H2SO4 is? Benzoic acid. 4-hydroxyanil…

PKR Publishers March 13, 2023

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Chemistry MCQs

Q40. The most acidic compound among the below?

Q40. The most acidic compound among the below? Phenol 4-methylphenol 4-nitrophenol 4-chlorophen…

PKR Publishers March 12, 2023

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Chemistry MCQs

Q39. The major product formed in reaction of toluene with KMNO4 is?

Q39. The major product formed in reaction of toluene with KMNO4 is? Benzyl alcohol. Benzoic acid. Sal…

PKR Publishers March 12, 2023

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Chemistry MCQs

Q38. The nitration of chlorobenzene affords?

Q38. The nitration of chlorobenzene affords? Nitrobenzene. 1-chloro-2-nitrobenzene.  1-chloro-2-n…

PKR Publishers March 12, 2023

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Chemistry MCQs

Q37. The reaction of alkyl halides with sodium iodide to prepare alkyl iodide is an example of?

Q37. The reaction of alkyl halides with sodium iodide to prepare alkyl iodide is an example of? Hoffma…

PKR Publishers March 12, 2023

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Chemistry MCQs

Q36. What will be the major product when THF reacts with excess HBr?

Q36. What will be the major product when THF reacts with excess HBr? Butane. 1-bromobutane. 1,4-Dib…

PKR Publishers March 12, 2023

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Chemistry MCQs

Q24. What is the shape of ClF3 according to VSEPR theory?

Q24. What is the shape of ClF3 according to VSEPR theory? Trigonal planar T shape Tetrahedral Tri…

PKR Publishers March 12, 2023

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Chemistry MCQs

Q2. What is the chemical symbol for gold?

Q2. What is the chemical symbol for gold? 1. Cu 2. Pd 3.Au 4. Ag The correct answer is option (3) Au…

PKR Publishers March 12, 2023

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