asked Dec 26, 2018 in Hydrocarbons by monuk (68.0k points) hydrocarbons; neet; 0 votes. When lone pair is localized on N atom, it can be easily donated to a suitable Lewis acid. or own an. Primary alkyl halides are most reactive for S N 2. AIIMS 2004: Among the following the aromatic compound is (A) Image A (B) Image B (C) Image C (D) Image D. Check Answer and Solution for above question Acetic acid (hexyl ester) was not previously reported in sourdough fermented breads. A) I B) II C) III D) IV . Some of the examples are: 1. 2U + 3H 2 → 2UH 3 This compound is useful chemically for the preparation of uranium compounds. For Study plan details. 1 answer. (i) Propanal and Propanone (ii) Acetophenone and Benzophenone (iii) Phenol and Benzoic acid (iv) Benzoic acid and Ethyl benzoate (v) Pentan-2-one and Pentan-3-one (vi) Benzaldehyde and Acetophenone (vii) Ethanal and Propanal. Ask Question Asked 4 years, 6 ... is the most acidic compound among the 4 due to ring expansion only. Among the following compounds, the most acidic is(a) p-nitrophenol (b) p-hydroxybenzoic acid(c) o-hydroxybenzoic acid (d) p-toluic acid - 8161223 JIPMER 2010: Which of the following compounds has carbon in a lowest oxidation state? 2) 2-bromopentane (Figure B) has chiral carbon in it. In the following graph. (A) CO2 (B) CO (C) CH4 (D) CCl4. A) I B) II C) III D) IV. AIEEE 2011. pentane. Post Answer. Which is the most suitable reagent among the following to distinguish compound (3) from rest of the compounds? Reducing the length of the column will shorten retention times and reduce its effective separation ability. Which among the following will be named as dibromidobis (ethylene diamine) chromium(III) bromide ? Which activity most likely involves the direct use of saturated hydrocarbons? D. Benzylamine . Academic Partner. 10:00 AM to 7:00 PM IST all days. 3.0k views. GO TO QUESTION. As we … Option 4) Asparagine . If an element is in its intermediate oxidation state in a compound, the compound can function both as an oxidising agent as well as reducing agent. The decreasing thermal thermal stability of the hydrogen halides from HF to HI indicates that the reducing character increases down the group as : HF < HCl < HBr < HI Thus, HF is not a reducing agent at all. Estradiol is best described as which of the following? B. Acetanilide. J K CET 2016: Optically active compounds among the following compounds are (i) 1 -Phenylethanol (ii) 2 -Phenylpropan- 1 -ol (iii) 2 -Phenylpro organic-chemistry homework acid-base aromatic-compounds. N 2 O: all electrons are paired so is diamagnetic. MEDIUM. The answer given is (a) but explanation is needed . an alkyne an alkene an alkane an aromatic. Among the following, the paramagnetic compound is: A. N a 2 O 2 B. N 2 O. C. K O 2 D. None of these. Uranium hydride (UH 3) is the most important hydride of the actinoid metals. Contact us on below numbers. Volatility depends on intermolecular interactions of a compound, as molecular weight increases so do the Vander wals forces. For example, most nonmetal hydrides are volatile compounds, held together in the condensed state by relatively weak van der Waals intermolecular interactions (see chemical bonding). * * In addition to the above answers i would like to point out few thumb rules to determine the order of electrophilic substitution in the nucleus in the presence of different activators and deactivators. Which two compounds among the following can be prepared from cyclopentene in a one-step reaction? Hydride - Hydride - Covalent hydrides: Covalent hydrides are primarily compounds of hydrogen and nonmetals, in which the bonds are evidently electron pairs shared by atoms of comparable electronegativities. A. Become our. Which structure represents a meso compound? 1 Answer +1 … Among tested compounds, only 6c demonstrated relative selectivity for PqsR, whereas the rest of the molecules had shown dual inhibition of both QS pathways . organic chemistry; jee; jee mains; Share It On Facebook Twitter Email. B. The Covalency of compounds depends on the cations and anions.The smaller the cation the greater the polarising power and so it will distort the electron cloud of anion sufficiently. Among the alcohols, ethanol, which is considered as the key compound produced by yeasts and LAB, proved to be the most dominant in all samples. Option 3) Histidine . a) Rank the following compounds from most to least reactive in an S 2 reaction. The enzyme dissimilatory (bi)sulfite reductase, dsrAB (EC 1.8.99.5), that catalyzes the last step of dissimilatory sulfate reduction, is the functional gene most used as a molecular marker to detect the presence of sulfate-reducing microorganisms. Check Answer and Solution f Contact. Identify the optically active compounds from the following : NCERT Exemplar Solutions of Class 12 Chemistry Chapter 9 Coordination Compounds. Answer. The State of Minnesota’s Department of Health classifies volatile organic compounds as the following; “Volatile organic compounds (VOCs) are a large group of chemicals that are present in many products that are used to construct and maintain a home. Which compound among the following is a diastereomer of compound 17? Which of the following is a Newman projection for the following compound as viewed down the indicated bond in the conformation shown? N a 2 O 2 : N a + has all electrons paired and O 2 − 2 has no unpaired electron. Among the following compounds most basic amino acid is : Option 1) Lysine . Much of the diversity and complexity of organic forms is due to the capacity of carbon atoms for bonding with one another in various chain and ring structures and three-dimensional conformations as well as for linking with other … Further 2 ° amines (III) are more basic than 1 ° amines (II) while amides (IV) are least basic due to delocalisation of lone pair of electrons of N over the CO group. Carbon - Carbon - Compounds: More than one million carbon compounds have been described in chemical literature, and chemists synthesize many new ones each year. A solution containing 2.675g of CoCl3. 26. Basicity in these compounds is due to the presence lone pair of electrons on N atom of N H 2 group. 22. Among the given compounds, benzyl amine is most basic due to localized lone pair of electron on nitrogen atom while other compounds have delocalized lone pair of electron. (ii) Write the compound which is optically active. (i) 1-bromopropane. AIEEE 2012 . The correct option is: (d) I > III > II > IV Explanation: The conjugate acid formed by addition of a proton to I is stabilised by two equivalent resonance structures and hence, compound I is the most basic. B. Structure of the given compounds are: 1) As we can see in the above figures, (A), contains the least steric hindrance so towards the S N 2 reaction 1- bromopentane will be most reactive. On the contrary, a longer column has increased separation ability, but longer retention times. The following compounds are given to you: 2-Bromopentane, 2-Bromo-2-methylbutane, 1-Bromopentane (a) Write the compound which is most reactive towards S N 2 reaction. HCl is a weak reducing agent. Among the following compounds, which will produce with . Among these 3 BeCL2 has the greatest covalent character. Amongst the following, the most basic compound is (a) benzylamine (b) aniline ← Prev Question Next Question → 0 votes . (A) K[PtCl3(η2-C2H4)] (B) Fe(η5-C5H5)2 (C) Cr(η6-C6H6)2 (D) (CH3 Acetic acid (hexyl ester) was detected in sourdough bread samples, although in lower relative proportion as compared to other compounds. Identify the correct statements for the behaviour of ethane-1, 2-diamine as a ligand. This pyrophoric black powder is prepared by reaction with hydrogen at 300 °C (570 °F). (hint: count the Carbons) burning natural gas. 1800-212-7858 / 9372462318. Which of the following cycloalkanes has the most angle strain? which one of the following compounds is more easily hydrolysed by koh and why 2 chloro butane or chloropropane - Chemistry - TopperLearning.com | k7ko3hjj. A) I B) II C) III D) IV. Answer. The magnetic moment (spin only) of [NiCl4]2− is. Need assistance? AIEEE 2011. (b) Write the compound which is optically active. asked Mar 17, 2019 in Chemistry by Daisha (70.5k points) Amongst the following, the most basic compound is (a) benzylamine (b) aniline (c) acetanilide (d) p-nitroaniline. C. Aniline. What is the name of this hydrocarbon? The compound below is estradiol, a hormone that triggers the development of female secondary sex characteristics. Following compounds are given to you : 2-Bromopentane, 2-Bromo-2-methylbutane, 1-Bromopentane (i) Write the compound which is most reactive towards SN2 reaction. Write IUPAC names of the products obtained by the ozonolysis of the following compounds : asked Jun 7, 2018 in Chemistry by rubby (51.6k points) hydrocarbons; … (2.5 pts) Cl Br b) Rank the following compounds from most to least reactive in an SN1 reaction (2.5 pts). Of the carbocations drawn, which is the most stable? 27. Which of the following is a wedge and dash structure for the following Newman projection? This is due to there being less area for gas molecules to travel, therefore less time for the column to separate the compounds well. UP CPMT 2010: Among the following which is not π-bonded organometallic compound ? Option 2) Serine . Answers (1) A admin . 6NH3 (molar mass = 267.5 g mol–1) is … Or if I am wrong, please correct me with a detailed solution. Give simple chemical tests to distinguish between the following pairs of compounds. So, this compound is optically active. Amongest the following the most basic compound is: A. p-nitro aniline. The slope of line gives the information of the (A) Value of (B) Value of (C) Value of Meso-compound: A term for the achiral member(s) of a set of diastereoisomers which also includes one or more chiral members. Most acidic compound amongs the following unsaturated ketones? Phylogeny. (A) Only (B) and (C) and (D) and Solution: (D) on reaction with the given compounds produce . For example: For example: There is a plane of symmetry in the examples given in IUPAC GOLD book (shown in colour) . The presence of … GO TO QUESTION. GO TO QUESTION. Which of the following facts about the complex [Cr (NH3)6 ]Cl3 is wrong? K O 2 : K + has all electrons paired and O 2 − has one unpaired electron so is paramagnetic. Among the following, the pa... chemistry. How to solve this problem- Among the following compounds most basic amino acid is : # Engineering. Basic Strength of Amines - The basic strength of the amine is expressed as equilibrium constant K b - wherein. Value of ( C ) III D ) IV greatest covalent character about the complex [ Cr NH3. Answer +1 … which among the following is a diastereomer of compound 17 of secondary. Count the Carbons ) burning natural gas given is ( a ) CO2 ( B Write. Has the greatest covalent character p-nitro aniline ) was detected in sourdough breads... 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