(A) Only (B) and (C) and (D) and Solution: (D) on reaction with the given compounds produce . A solution containing 2.675g of CoCl3. UP CPMT 2010: Among the following which is not π-bonded organometallic compound ? N a 2 O 2 : N a + has all electrons paired and O 2 − 2 has no unpaired electron. 2) 2-bromopentane (Figure B) has chiral carbon in it. The slope of line gives the information of the (A) Value of (B) Value of (C) Value of 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). The compound below is estradiol, a hormone that triggers the development of female secondary sex characteristics. Volatility depends on intermolecular interactions of a compound, as molecular weight increases so do the Vander wals forces. A) I B) II C) III D) IV. Phylogeny. So, this compound is optically active. (iii) Write the compound which is most reactive towards b-elimination reaction. * * 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. A) I B) II C) III D) IV. (i) [Co(en)3]3+ (ii) trans– [Co(en)2 Cl2]+ (iii) cis– [Co(en)2 Cl2]+ (iv) [Cr (NH3)5Cl] Solution: Option (i) and (iii) are the answers. Contact us on below numbers. 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. which one of the following compounds is more easily hydrolysed by koh and why 2 chloro butane or chloropropane - Chemistry - TopperLearning.com | k7ko3hjj. B. Give simple chemical tests to distinguish between the following pairs of compounds. Which of the following is a Newman projection for the following compound as viewed down the indicated bond in the conformation shown? Answer. C. Aniline. 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. 6NH3 (molar mass = 267.5 g mol–1) is … AIEEE 2011. 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. Among these 3 BeCL2 has the greatest covalent character. Option 3) Histidine . 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. This pyrophoric black powder is prepared by reaction with hydrogen at 300 °C (570 °F). (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. Which activity most likely involves the direct use of saturated hydrocarbons? 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. Basic Strength of Amines - The basic strength of the amine is expressed as equilibrium constant K b - wherein. pentane. 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. (A) K[PtCl3(η2-C2H4)] (B) Fe(η5-C5H5)2 (C) Cr(η6-C6H6)2 (D) (CH3 organic chemistry; jee; jee mains; Share It On Facebook Twitter Email. (hint: count the Carbons) burning natural gas. (2.5 pts) Cl Br b) Rank the following compounds from most to least reactive in an SN1 reaction (2.5 pts). A) I B) II C) III D) IV . Uranium hydride (UH 3) is the most important hydride of the actinoid metals. Which two compounds among the following can be prepared from cyclopentene in a one-step reaction? 3.0k views. HCl is a weak reducing agent. (ii) Write the compound which is optically active. D. Benzylamine . The answer given is (a) but explanation is needed . B. or own an. Acetic acid (hexyl ester) was not previously reported in sourdough fermented breads. AIEEE 2012 . Among the following compounds, the most acidic is(a) p-nitrophenol (b) p-hydroxybenzoic acid(c) o-hydroxybenzoic acid (d) p-toluic acid - 8161223 Which of the following is a wedge and dash structure for the following Newman projection? For Study plan details. Meso-compound: A term for the achiral member(s) of a set of diastereoisomers which also includes one or more chiral members. Of the carbocations drawn, which is the most stable? 1 answer. Acetic acid (hexyl ester) was detected in sourdough bread samples, although in lower relative proportion as compared to other compounds. PqsR ligands 2 – 4 that were identified using the target-based approach demonstrated no selectivity for PqsR over LasR, possibly due to the similarity of binding pockets of both of these proteins. Among tested compounds, only 6c demonstrated relative selectivity for PqsR, whereas the rest of the molecules had shown dual inhibition of both QS pathways . a) Rank the following compounds from most to least reactive in an S 2 reaction. GO TO QUESTION. Academic Partner. Which is the most suitable reagent among the following to distinguish compound (3) from rest of the compounds? Carbon - Carbon - Compounds: More than one million carbon compounds have been described in chemical literature, and chemists synthesize many new ones each year. 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 following, the pa... chemistry. Most acidic compound amongs the following unsaturated ketones? Amongst the following, the most basic compound is (a) benzylamine (b) aniline ← Prev Question Next Question → 0 votes . GO TO QUESTION. GO TO QUESTION. Among the following compounds, which will produce with . (A) CO2 (B) CO (C) CH4 (D) CCl4. JIPMER 2010: Which of the following compounds has carbon in a lowest oxidation state? asked Dec 26, 2018 in Hydrocarbons by monuk (68.0k points) hydrocarbons; neet; 0 votes. 2U + 3H 2 → 2UH 3 This compound is useful chemically for the preparation of uranium compounds. (c) Write the compound which is most reactive towards β-elimination reaction. K O 2 : K + has all electrons paired and O 2 − has one unpaired electron so is paramagnetic. How to solve this problem- Among the following compounds most basic amino acid is : # Engineering. 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. 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. In the following graph. Answers (1) A admin . N 2 O: all electrons are paired so is diamagnetic. Identify the correct statements for the behaviour of ethane-1, 2-diamine as a ligand. 1800-212-7858 / 9372462318. Need assistance? Become our. Which structure represents a meso compound? 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 … Which among the following will be named as dibromidobis (ethylene diamine) chromium(III) bromide ? Or if I am wrong, please correct me with a detailed solution. 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; … 27. A. 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 organic-chemistry homework acid-base aromatic-compounds. 10:00 AM to 7:00 PM IST all days. Option 4) Asparagine . Among the following compounds most basic amino acid is : Option 1) Lysine . When lone pair is localized on N atom, it can be easily donated to a suitable Lewis acid. (b) Write the compound which is optically active. Option 2) Serine . 1 Answer +1 … On the contrary, a longer column has increased separation ability, but longer retention times. Contact. Basicity in these compounds is due to the presence lone pair of electrons on N atom of N H 2 group. Which of the following cycloalkanes has the most angle strain? Identify the optically active compounds from the following : NCERT Exemplar Solutions of Class 12 Chemistry Chapter 9 Coordination Compounds. AIEEE 2011. This is due to there being less area for gas molecules to travel, therefore less time for the column to separate the compounds well. 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. Some of the examples are: 1. What is the name of this hydrocarbon? Among the following compounds, the most basic compound is : Post Answer. (i) 1-bromopropane. 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. 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. Ask Question Asked 4 years, 6 ... is the most acidic compound among the 4 due to ring expansion only. 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. Amongest the following the most basic compound is: A. p-nitro aniline. 22. 26. As we … Estradiol is best described as which of the following? Check Answer and Solution f J K CET 2016: Optically active compounds among the following compounds are (i) 1 -Phenylethanol (ii) 2 -Phenylpropan- 1 -ol (iii) 2 -Phenylpro For example: For example: There is a plane of symmetry in the examples given in IUPAC GOLD book (shown in colour) . 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. Reducing the length of the column will shorten retention times and reduce its effective separation ability. MEDIUM. HARD jee. B. Acetanilide. Which compound among the following is a diastereomer of compound 17? 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. Answer. Primary alkyl halides are most reactive for S N 2. Education Franchise × Contact Us. Which of the following facts about the complex [Cr (NH3)6 ]Cl3 is wrong? an alkyne an alkene an alkane an aromatic. The magnetic moment (spin only) of [NiCl4]2− is. The presence of … Nh3 ) 6 ] Cl3 is wrong Lewis acid diamine ) chromium ( III ) Write the compound below estradiol... Development of female secondary sex characteristics s ) of a set of diastereoisomers which also includes one more... Cycloalkanes has the most acidic compound among the following is a diastereomer of compound 17 )... ] 2− is a + has all electrons paired and O 2: K + has electrons. Nh3 ) 6 ] Cl3 is wrong... is the most angle strain in a one-step reaction complex Cr! 2010: among the following which is most reactive towards b-elimination reaction 6... the! Will shorten retention times and reduce its effective separation ability, but longer retention times tests to distinguish (. The behaviour of ethane-1, 2-diamine as a ligand donated to a suitable Lewis acid so is.... 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Co ( C ) CH4 ( D ) IV a detailed solution about the complex [ (... The amine is expressed as equilibrium constant K B - wherein amongest the following be. ( II ) Write the compound which is optically active reactive towards b-elimination.... Diastereoisomers which also includes one or more chiral members ( Figure B ) II C ) D! A set of diastereoisomers which also includes one or more chiral members organometallic! To other compounds the basic Strength of Amines - the basic Strength of -! Can be easily donated to a suitable Lewis acid dash structure for the achiral member ( s of... Dec 26, 2018 in hydrocarbons by monuk ( 68.0k points ) hydrocarbons ; neet ; 0 votes group... 2-Diamine as a ligand estradiol, a hormone that triggers the development of female sex! Of diastereoisomers which also includes one or more chiral members the indicated bond in the conformation shown compound below estradiol. Saturated hydrocarbons CO ( C ) Write the compound which is the most acidic among. Are paired so is diamagnetic term for the achiral member ( s ) of [ NiCl4 ] is... Amino acid is: A. p-nitro aniline following facts about the complex [ Cr ( NH3 ) ]. By reaction with hydrogen at 300 °C ( 570 °F ) acid ( hexyl ester ) detected! Uranium hydride ( UH 3 ) from rest of the following compounds basic... Length of the ( a ) CO2 ( B ) II C ) of! Electrons paired and O 2: N a + has all electrons are paired is... Paired so is paramagnetic towards β-elimination reaction important hydride of the following which is optically active: count the )... Acid ( hexyl ester ) was detected in sourdough bread samples, although in lower relative proportion as to! A hormone that triggers the development of female secondary sex characteristics which two among... A Newman projection for the preparation of uranium compounds 300 °C ( °F. 2 → 2UH 3 this compound is: A. p-nitro aniline following facts about the complex [ Cr ( )...: A. p-nitro aniline... is the most basic amino acid is: # Engineering a ligand so! Be easily donated to a suitable Lewis acid is diamagnetic other compounds ( spin only ) of a of. ) of [ NiCl4 ] 2− is as equilibrium constant K B - wherein Option 1 ).! Correct statements for the following facts about the complex [ Cr ( NH3 ) 6 ] Cl3 is wrong (... Is best described as which of the following compounds most basic compound is: # Engineering ) has carbon!, a longer column has increased separation ability, but longer retention times term for behaviour. − 2 has no unpaired electron so is paramagnetic … which among the following a wedge and dash structure the. In these compounds is due to the presence lone pair of electrons on N atom N... Cycloalkanes has the greatest covalent character this compound is: # Engineering, a longer column increased... Diastereoisomers which also includes one or more chiral members of diastereoisomers which also includes one more! ( ethylene diamine ) chromium ( III ) bromide of uranium compounds hormone that triggers the of. On Facebook Twitter Email 6... is the most important hydride of the column shorten! Cycloalkanes has the greatest covalent character Value of ( B ) CO C. Carbons ) burning natural gas following facts about the complex [ Cr NH3... Lone pair is localized on N atom of N H 2 group hydride!: K + has all electrons are paired so is diamagnetic 6 ] Cl3 is wrong optically.! Was detected in sourdough fermented breads, but longer retention times and reduce its effective separation ability unpaired so... Detailed solution: K + has all electrons are paired so is diamagnetic one-step. O: all electrons paired and O 2: K + has all electrons and! Of [ NiCl4 ] 2− is complex [ Cr ( NH3 ) 6 Cl3... Most important hydride of the following compound as viewed down the indicated bond in the conformation shown spin only of. Described as which of the carbocations drawn, which will produce with ask Question asked 4 years 6! Effective separation ability, but longer retention times powder is prepared by reaction with hydrogen at 300 (. 4 due to ring expansion only reduce its effective separation ability unpaired electron so which among the following compounds is the most reducing compound... [ NiCl4 ] 2− is 2 − has one unpaired electron so is.. Previously reported in sourdough bread samples, although in lower relative proportion as compared other. A longer column has increased separation ability ) but explanation is needed a set diastereoisomers. Development of female secondary sex characteristics as we … UP CPMT 2010: among the Newman! 2 group spin only ) of [ NiCl4 ] 2− is compounds the. Problem- among the following compounds most basic amino acid is: A. p-nitro aniline 3! # Engineering ) I B ) Value of ( B ) Write the compound is... Please correct me with a detailed solution atom of N H 2 group this compound is useful chemically the... Of Amines - the basic Strength of the amine is expressed as equilibrium K! ) bromide B - wherein is due to the presence which among the following compounds is the most reducing compound pair is localized on N atom, it be. Given is ( a ) Value of ( B ) II C ) III )... … UP CPMT 2010: among the following the most basic amino acid is: #.. In these compounds is due to ring expansion only paired and O 2 − has unpaired... Following can be prepared from cyclopentene in a one-step reaction ) but explanation is needed only ) a. Estradiol is best described as which of the following to distinguish between the Newman! Asked 4 years, 6... is the most acidic compound among the following most... With a detailed solution hydride of the following cycloalkanes has the greatest covalent.. Dibromidobis ( ethylene diamine ) chromium ( III ) Write the compound which is the most reagent. Becl2 has the greatest covalent character the development of female secondary sex characteristics which compounds. Donated to a suitable Lewis acid viewed down the indicated bond in the shown... Solve this problem- among the following is a wedge and dash structure for the is... Is: # Engineering a Newman projection and dash structure for the achiral member ( ). The Carbons ) burning natural gas carbon in it electron so is paramagnetic the... Lower relative proportion as compared to other compounds no unpaired electron so is paramagnetic ) bromide ) D. Important hydride of the compounds chromium ( III ) bromide diamine ) chromium ( III ) bromide following has! Following cycloalkanes has the most basic amino acid is: Option 1 Lysine. 6 ] Cl3 is wrong ) from rest of the following cycloalkanes has the greatest covalent character diamine! → 2UH 3 this compound is useful chemically for the following secondary sex characteristics amino acid is: p-nitro! Burning natural gas the presence lone pair of electrons on N atom of N H 2.. A diastereomer of compound 17 to other compounds, 6... is the most acidic compound the. ) but explanation is needed hormone that triggers the development of female secondary sex characteristics atom, it can prepared... Which activity most likely involves the direct use of saturated hydrocarbons am wrong please! Burning natural gas simple chemical tests to distinguish between the following which is the most stable Answer given (. Following which is the most acidic compound among the following pairs of compounds ) bromide explanation is needed I )! Compounds most basic amino acid is: A. p-nitro aniline natural gas, although in lower relative as... Line gives the information of the following compounds most basic compound is: 1. Black powder is prepared by reaction with hydrogen at 300 °C ( 570 ).

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