Share d. Write the product in the following reaction CH, e. A and B are two functional isomers of compoundC. (At. Which element shows only +3 oxidation state? Write the structure of an isomer of compound C. 5. Convert grams of AgI → moles of AgI → moles if HI. Would it be advisable to take antacids for a long period of time? Anisole on protonation forms methylphenyl oxonium ion. iii. Anisole on protonation forms methylphenyl oxonium ion. In non-ideal solution, what type of deviation shows the formation of maximum boiling azeotropes? Assertion: The major products formed by heating C6H5CH2OCH3, with HI are C6H5CH2I and CH3OH. It’s known as the CD4 helper cell or T cell. Mr. Khanna advised him to eat homemade food. Calculate the boiling point of solution when 4 g of MgSO, 19. i. What are the values (at least two) displayed by Mr. Khanna? What happens if external potential applied becomes greater than E°cell of electro chemical cell? Powered by Discourse, best viewed with JavaScript enabled, Anisole reacts with HI to give phenol and methyl iodide and not iodobenzene and methylalchohol. b. What is the role of limestone in the extraction of iron from its oxides? When anisole reacts with HI, then it gives methyl iodide and phenol. 20. …, i am telling you that first friend request me then brainliest! Your IP: 151.80.60.11 Name the acid present in lemon juice. Arrange the following in the increasing order of their reactivity towards nucleophilic. 25. a. Use of calculators is not allowed. One liter of water will dissolve 425 liters of HI, the most concentrated solution having only four water molecules per molecule of HI. Gas (A) is more soluble in water than Gas (B) at the same temperature. Write the structures of A and B in the following reactions: c. Arrange the following in the increasing order of their boiling points: a. Hydroiodic acid. number: Fe=26) b. 23. Zeta potential iii. 2-bromobutane to but-2-ene. After reading the above passage, answer the following: i. Anisole on reaction with HI gives phenol and CH. Byjus Asked on June 15, 2016 in Chemistry. 21. Name the acid present in ant sting... CBSE -NCERT  IMPORTANT QUESTIONS OF SCIENCE WITH SOLUTIONS CBSE - NCERT Previous Years Question Papers, Quick Views &a... CLASS 12 PREVIOUS YEARS QUESTIONS OF PHYSICS. With moist air, HI gives a mist (or fumes) of hydroiodic acid. An element crystallizes in a b.c.c. When HIV destroys this cell, it becomes harder for the body to fight off other infections. 9. • Define electro chemical cell. meeting he felt severe chest pain and fell down. The phenols formed do not react with halides since nucleophilic substitution on aromatic ring is difficult. What is the role of Sulphur in the vulcanization of rubber? second step reacts with another HI molecule and gets converted to methyl iodide . Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. This is because of the partial double bond character between oxygen and carbon of the benzene ring. Because of resonance, there's some partial double bond character between oxygen and carbon of benzene ring. Class 9: Solution of Is Matter Around Us Pure? The elements of 3d transition series are given as: i. The bond between O-CH 3 is weaker than the bond between O-C 6 H 5. 1. Use log tables, if necessary. Name the method of refining of nickel. so when you friend request me then i will follow you + 10 thx. Carbylamine reaction. It is exceptionally soluble in water, giving hydroiodic acid. ii. Arrange the following polymers in the increasing order of their intermolecular forces: 14. Give reason. On heating with concentrated Hydrogen iodide (HI) the C-O bond in ethers breaks forming alcohol and alkyl iodide. Define the following terms: i. Lyophilic colloid ii. This is because of the partial double bond character between oxygen and carbon of the benzene ring. ?​, dekh bhai usne aane se mana kar di thi or abhi meko block kar di h​, you have only 20 answers so you answer in your second id now​, who ever friend requests me and reply here first i will mark them as brainliest! Write the chemical reaction involved in Wolff-Kishner reduction. 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. i. again Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. (iii) Anisole reacts with HI (b) Distinguish between: (i) Ethanol and Diethyl ether (ii) Propanol and t-butyl alcohol 25. Hence the I- ion attacks and breaks the O-CH3 bond to give CH3I. Anisole reacts with HI to give phenol and methyl iodide and not iodobenzene and methylalchohol. How do you convert: Write the major product(s) in the following: i. Chlorobenzene to biphenyl ii. element is 7.5g cm-3. Attack of I-ion on anisole is through SN2 mechanism, which attacks the lesser hindered -CH3 group forming CH3-I Also, O=C bond in phenoxide ion is difficult to break due to resonance. 2. Another way to prevent getting this page in the future is to use Privacy Pass. (CH3)3C - O - CH3 on reaction with HI gives (CH3)3C - I and CH3 - OH as the main products and not (CH3)3C - OH and CH3- I. Propene to 1-iodopropane iii. Citric acid. c. Why carboxylic acid does not give reactions of carbonyl group? 4. Write the unit of k. the complex. Write the chemical equations involved in the following reactions: i. Hoffmann-bromamide degradation reaction ii. iv. ii. Short answer type questions: 1. Which one of the two gases will have the higher value of KH (Henry’s constant) and why? - Thus, it's much easier for I- to attack O-CH3 bond than O-C6H5 bond. HI is a colorless gas that reacts with oxygen to give water and iodine. 2. took him to doctor immediately. Because of resonance, there's some partial double bond character between oxygen and carbon of benzene ring. Give one example each for fibrous protein and globular protein. I. Question number 23 is a value based question and carry 4 marks. Questions number 1 to 5 are very short answer questions and carry 1 mark each. Draw one of the geometrical isomers of the complex [Pt(en)2Cl. iii. Hence, anisole reacts with HI to give phenol and methyl, This site is using cookies under cookie policy. Which element is a strong oxidizing agent in +3 oxidation state and why? (Kb for water=0.52 K … The bond between O-CH3 is weaker than the bond between O-C6H5. lattice with cell edge of 500pm. Write the IUPAC name of the given compound: 6. The major organic product in the reaction is CH3 - O - CH(CH3)2 + HI → products, How do you convert the following: Phenol to anisole, How will you convert : (i) Phenol to cyclohexanol (ii) Benzene chloride to benzyl alcohol (iii) Anisole to phenol. The density of the. Performance & security by Cloudflare, Please complete the security check to access. The bond between O–CH 3 is weaker than the bond between O–C 6 H 5 because the carbon of phenyl 2 group is sp hybridised and there is a partial double bond character. When HI is in excess and the reaction is carried out at a high temperature, the methanol formed in the. iii. Anisole on reaction with HI gives phenol and CH3- I as main products and not iodobenzene and CH3OH. Aryl alkyl ethers on treatment with HI generally give phenol as one of the products as it is more stable and methyl iodide. (a) Calculate the boiling point of solution when 2g of Na 2 SO 4 (M=142 g mole-1 was dissolved in 50 g of water, assuming Na 2 SO 4 undergoes complete ionization.

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