Using anhydrous AlCl3 as catalyst,which one of the following reaction produce ethylbenzene (PhEt) ? Reaction between benzaldehyde and acetophenone in presence of dilute NaOH is known as : (1) Cross Aldol condensation, Match the following catalyst with their products: (i) TiCl4 + AlCl3 (A) Ethanal. This forms soluble sodium dicyanoargentite. These salts are called thiosulphates and contain thiosulphate ion (S. Name one ore each of tin and lead. (ii) Acetaldehyde with aluminium ethoxide. Acetophenone is prepared by the reaction of which of the following in the presence of AlCl3 catalyst –, Correct option (C) Benzene and acetyl chloride. This gives us blister copper which contains 98% Cu and about 2% impurities. Browse through more topics from ISC Chemistry for questions and snapshot. (iv) Benzaldehyde with concentrated sodium hydroxide. Out of which p-chlorotoulene is the major product as it is more stable(beacause of its symmetry) . [. ISC Chemistry. (iii) Phenol with acetyl chloride in the presence of AlCl3. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students. O. E reacts with 2, 4 dinitrophenyl hydrazine but does not answer Tollen’s test or react with Fehlings solution. 525 Views. Delhi - 110058. Flag; Note; Bookmark; Alcohols And Phenols. Acetophenone is prepared by the reaction of which of the following in the presence of AlCl. Using anhydrous AlCl3 as catalyst, which one of the following reactions produces ethylbenzene (PhEt). Galena is the ore of lead. It contains 5 to 10% SnO2, the rest being the impurities of sulphides of Fe and Cu. https://www.zigya.com/previous-year-papers/ICSE/12/Chemistry/2004/ICSE2004005. C. Chlorobenzene. Remember. Download the PDF Sample Papers Free for off line practice and view the Solutions online. How will you convert the following (write the relevant equations) : The cassiterite also called tinstone is the ore of tin. acetyl chloride (D) Phenol and acetone. Write the equation and name the following reactions : (i) Acetic acid with red phosphorus and chlorine. Write the chemical equation for the reactions involved in the extraction of copper from copper pyrites. Write balanced equations for the following reactions : i) Tin forms stannate with aqueous sodium hydroxide.Sn +2NaOH +2H2O --> Na2SnO3+2H2ii) Copper with dilute nitric acid.3Cu +8HNO3 --> 3[Cu(NO3)2] +2NO+4H2Oiii)Bromine with sodium sulphiteNa2S +Br2 --> 2NaBr +Siv) Preparation of bleaching powderCa(OH)2 +Cl2 --> Ca(ClO)Cl +H2O. 232, Block C-3, Janakpuri, New Delhi, An organic compound A on treatment with ethyl alcohol gives a carboxylic acid B and a compound C. Hydrolysis of C under acidic conditions gives B and D. Oxidation of D with KMnO. Explain, why it is used and write the relevant equation. Zig In. 641 views. Benzene reacts with acetyl chloride in presence of anhydrous aluminium chloride to form : A. Acetophenone. Switch; Flag; Bookmark; 22. Delhi - 110058. toppr. Now it is quite stable because his hunger has been satisfied. This is a straightforward application of Friedel-Crafts Reaction. Find many more questions on Alcohols And Phenols with answers for your assignments and practice. Identify A,B, C,D and E. ICSE Class 12 Chemistry Solved Question Paper 2004, Class 11 NCERT Political Science Solutions, Class 11 NCERT Business Studies Solutions, Class 12 NCERT Political Science Solutions, Class 12 NCERT Business Studies Solutions, https://www.zigya.com/share/SUNIRU4xMjExNjIwNw==. The given reaction is Friedel-Craft's acylation reaction. Compound A is acetic anhydride. Making esters from phenol using an acyl chloride. AlCl3 is considered to be a Lewis Acid or in simpler words an “electron hungry species”. Arrange the following in increasing order of acidity and name the property which decides this order : It is decided by the inductive and mesomeric effect. Ltd. Hope you found this question and answer to be good. HARD. Video Explanation. Check you answers with answer keys provided. (iv) Benzaldehyde with concentrated sodium hydroxide. 525 Views. Practice to excel and get familiar with the paper pattern and the type of questions. Find many more questions on Alcohols And Phenols with answers for your assignments and practice. is a dibasic acid, but it forms only one type of salts (M, ). This blister copper is purified by electrorefining method and 99.6 - 99.9% pure copper is obtained. Acetophenone is prepared by the reaction of which of the following in the presence of AlCl3 catalyst – ← Prev Question Next Question → 0 votes . (CH3COO)2. Now it leaves behind an electrophile -COCH3 minus. 2020 Zigya Technology Labs Pvt. Hope you found this question and answer to be good. In this reaction, the acyl group substitutes one of the hydrogen atoms on benzene to form acetophenone. Answered By . [This gives us blister copper which contains 98% Cu and about 2% impurities. Write the chemical equation for the reactions involved in the extraction of copper from copper pyrites. Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. D. Benzoic acid. (ii) Acetaldehyde with aluminium ethoxide. Login. © The reaction yields o-chlorotoulene and p-chrolotoulene . Phenol reacts with ethanoyl chloride at room temperature, although the reaction isn't as fast as the one between ethanoyl chloride and an alcohol. In this process, silver ores (Ag2S and AgCl) are leached for many hours with an aqueous solution of NaCN. Explore. Phenyl ethanoate is formed together with hydrogen chloride gas. Phenol is reduced to benzene when it is distilled with zinc dust or its vapour is passed over granules of zinc at 400°C. (iii) Phenol with acetyl chloride in the presence of AlCl 3. (iv) Benzaldehyde with concentrated sodium hydroxide. Sodium cyanide is used in the extraction of silver from its ore. So, when it sees Acetyl Chloride (CH3COCl) it extracts the -Cl minus from the latter and itself gets transformed into AlCl4 minus. A typical acyl chloride is ethanoyl chloride, CH 3 COCl. Discuss the structure of thiosulphate ion. 2020 Zigya Technology Labs Pvt. What is the main constituent of each ? (iii) Phenol with acetyl chloride in the presence of AlCl3. Click hereto get an answer to your question ️ Treatment of nitrobenzene with acetyl chloride in the presence of anhydrous AlCl3 gives : © Browse through more topics from ISC … B. Phenyl acetate. Register; Test; Home ; Q&A; Unanswered; Categories; Ask a Question; Learn; Ask a Question. Ltd. Sodium cyanide (NaCN) is used for extracting silver from its ore due to the metal displacement property. (iii) Phenol with acetyl chloride in the presence of AlCl 3. (iv) Benzaldehyde with concentrated sodium hydroxide. How will you convert the following (write the relevant equations) :Phenol to salicylic acid. 232, Block C-3, Janakpuri, New Delhi, Write the equation and name the following reactions : (i) Acetic acid with red phosphorus and chlorine. Answer. It is found associated with zinc blend, iron pyrites and traces of silver.

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