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Mdcat-past-papers - UHS - Chemistry Quiz

Filters: Board: UHS | Subject: Chemistry |
281. When 2-bromopropane reacts with sodium ethoxide, the major product is/are:



282. Identify the correct statement related to substitution and elimination of alkyl halides:



283. Alkyl halides involving -C-X bond breakage and -C-Nu bond formation simultaneously would follow which one of the following mechanisms:



284. An alcohol is converted to an aldehyde with same number of carbon atoms as that of alcohol in the presence of K₂Cr₂O₇/H₂SO₄, the alcohol is:



285. Which enzyme is involved in fermentation of glucose:



286. The dehydration of ethyl alcohol with concentrated H₂SO₄ at 140°C gives:



287. Ethanol can be converted into ethanoic acid by:



288. Alcohol in which carbon atom bonded to OH group is further attached with three alkyl group is:



289. Select one which is alcohol:



290. Which one of the following compounds is known as tertiary alcohol?



291. Which of the following compounds will give a secondary alcohol after reaction with NaBH₄?



292. Which of the following reactions is used for the production of alcohols on industrial scale?



293. When ethanol is warmed with ethanoic acid in the presence of a strong acid catalyst, an ester ethanoate is formed. During this reaction:



294. Consider the following reactions: C₂H₅OH + PCl₅ → What products may be formed?



295. Primary, Secondary, and Tertiary alcohols can be identified and distinguished by:



296. Which one of the following alcohols is indicated by formation of yellow crystals in the iodoform test?



297. Which one of the following groups is indicated when HCl is formed by reaction of ethanol with phosphorus pentachloride?



298. Which one of the following is not able to denature ethanol?



299. How will you distinguish between methanol and ethanol?



300. To produce absolute alcohol (100%) from rectified spirit (95.6% alcohol), the remaining 4.4% water must be removed by a dry agent such as:



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