Which of the following substituent is an ortho/para-directing activator and an ortho/para-directing deactivator?   a amino group   b halogen group   c nitro group   d carboxyl group

Q: Be sure to answer all parts. Determine the percent ionization of the following solutions of phenol…

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Q: Decide whether or not each of the following metals dissolves in 1 M HNO3. For those metals that do…

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Q: (a) the fission reaction of uranium-235 with a neutron to produce xenon-144 and strontium-90 chemPad…

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A: Friedel-Craft alkylation is the importnat reaction for the introduction of alkyl group on the…

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Q: A block of metal is warmed irreversibly at constant pressure from 267 K to 315 K. The heat capacity…

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Q: First ionization energy of magnesium is greater than the first ionization energy of aluminum.…

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Q: Which amomg the fragments below will be dectected by mass Spectrophotometer? i. [CH3CH3]* ii. CH3CH3…

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Q: Match the following electron configuration for the correct element or ion. A. Cr 1s2 252p6…

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Q: 1) H,O* `CH3 2) CH3I g) 1) МСРВА NalO, H,C. CCH2 2) Na"SCH, h)

A: g) Grignard reaction with ketones result tertiary alcohols followed sn2 reaction. Ketal is…

Q: Which of the following is directly related to reaction rate? A. Concentration B. Pressure C. Time D.…

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Q: Draw a voltaic cell for the given reaction (please include anode, cathode, and flow of electrons)…

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Q: OH Cro3 HBr -OH H,SO4 а) CH, PPh, b) H;C -CH3 CH;OH H,SO,

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Q: Is the part of a flashlight battery that is marked "+" the anode or the cathode? Explain why it is…

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Q: 1. Hg(OAc)2 H20 2. NABH4 CH, H,C- -CH3 H,C

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Q: он OH + H;C=CH-CH, NO2 (a) (b) OH HNO,, H,SO, (a) (b) (b) 1. H2. Pd/C H,PO, (c) H,PO, (d) H,PO, +…

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Q: Use the following Lewis structure to answer the given question. In which orbital does the nitrogen…

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Q: Which of the following reaction uses the reagent m-chloroperoxybenzoic acid?   a Epoxidation   b…

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Q: 15. Given the following equations and AH values, determine the heat of reaction (kJ) at 298 K for…

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Q: An electrochemical cell consists of a standard hydrogen electrode and a copper metal electrode. a.…

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Q: What reagent or reagents are needed to complete the following transformations? If more than one…

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Q: Enter your answer in the provided box. What is the pH of a saturated solution of Zn(OH)2? Kep = 1.8…

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Q: Which element will have five electrons in its Lewis symbol? O carbon O sulfur O phosphorus O boron

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Q: If the concentration of H3O^+ is 1.0x10^-13, the pH is?

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Q: A buffer consists of 0.12 M NaH2PO4 and 0.33 M Na2HPO4. Phosphoric acid is a triprotic acid…

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Q: Draw the product in the following enzyme catalysed reaction

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Q: A solution is 0.0500 M in NH4Cl and 0.0300 M in NH3. Calculate its OH- concentration and its pH.

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Q: O CHEMICAL REACTIONS Using the Avogadro Number An aluminum atom has a mass of 4.48 × 10 -23 g and a…

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Q: Ka for formic acid (HCO2H) is 1.8 × 10^-4 . What is Kb for the formate ion (HCO2−)?

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Q: Which of the following processes has a negative AS? A) CaCO3(s) – CaO(s) + CO,(g) B) H,0(g) – H,0(s)…

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Q: What is the standard potential for the reaction 2Na(s)  2Na+(aq) + 2e-? -2.71 V 2.71 V -5.42 V…

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Aromatic Compounds

Aromatic organic compound or aromatic system is an important class of hydrocarbons under the branch of organic chemistry. Aromatic compounds are also called arenas. The definition of aromatic organic compounds can be stated as a class of organic compounds with a planar cyclic ring of atoms bonded through alternated single and double bonds. Due to these alternating bonds, a peculiar feature termed as ‘resonance’, that is, delocalization of pi electrons or the electrons is shared within the atoms of the ring which are present in the aromatic compounds. The word ‘aromatic’ includes a Greek word ‘aroma’ which means smell, indicating that they were named as such due to the sweet odor they produce. Many well-known flavors such as vanilla, cinnamon, and few scents from flowers are extracted from aromatic compounds. Benzene with chemical formula C6H6 is a very common aromatic compound that contains six atoms of carbon held in the cyclic ring of alternate double bonds. It is also to be noted that not all aromatic compounds contain benzene ring. This can be explained by Huckel’s rule.