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Kerala engineering entrance a

14 pages, 49 questions, 18 questions with responses, 18 total responses,

Yogesh
Indian Institute of Technology (IIT) Bombay, Mumbai
Chemical Engineering

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Kerala Engineering Entrance 2005 Chemistry 1. Identify the product in the following sequence (1)diazotization ? 3,4,5-tribromoaniline (2)H 3 PO2 A. 3,4,5-tribromobenzene B. 1,2,3-tribromobenzene C. 2,4,6-tribromobenzene D. 3,4,5-tribromonitrobenzene E. 3,4,5-tribromophenol Ans: B 2. Among the amines a) C 6 H 5 NH 2 basicity is A. B. C. D. E. b) CH 3 NH 2 c) (CH 3 )2 NH d) (CH 3 )3 N the order of a<b<d<c d<c<b<a a>b>c>d b<c<d<a d < c < b< a Ans: A 3. The number average molecular mass and mass average molecular mass of a polymer are respectively 30,000 and 40,000. The poly dispersity index of the polymer is A. B. C. D. E. <1 >1 1 0 1 Ans: B 4. In biological systems, the RNA molecules direct the synthesis of specific proteins, which are characteristic of each kind of organism. This process is known as A. B. C. D. E. Transcription Mutation Replication Translation Flocculation Ans: D

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