[{"id":197433,"question":"Acidic character of amino acid is due to:","choices":[{"text":"-NH2","value":"A"},{"text":"-N+H2","value":"B"},{"text":"-COOH","value":"C"},{"text":"-COO-","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":197432,"question":"Select the correct acidic strength order of chloro substituted acid.","choices":[{"text":"CH3COOH &gt;Cl2CH2COOH&gt;Cl2 CHCOOH&gt;CCOOH","value":"A"},{"text":"CH3COOH&gt;ClCH2COOH&gt;Cl3COOH&gt;Cl3COOH","value":"B"},{"text":"ClCCOOH&gt;Cl2CHCOOH&gt;ClCH2COOH&gt;CH2COOH","value":"C"},{"text":"CH3COOH&gt;ClCH2COOH&gt;Cl2CHCOOH&gt;Cl3CCOOH","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":197431,"question":"Compounds having -CH group are called as","choices":[{"text":"Cyano compounds","value":"A"},{"text":"Nitro compounds","value":"B"},{"text":"Carbon nitrogen compounds","value":"C"},{"text":"Nitriles","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197430,"question":"In the reaction ? represents which one of the following products.","choices":[{"text":"Ketone","value":"A"},{"text":"Aldehyde","value":"B"},{"text":"Formic acid","value":"C"},{"text":"Ether","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":197429,"question":"Which one of the following compounds will give idoform test on treatment with aqueous iodine?","choices":[{"text":"3-pentanone","value":"A"},{"text":"Propanone","value":"B"},{"text":"Propanal","value":"C"},{"text":"Butanal","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":197428,"question":"The reaction of aldehydes and ketones with ammonia derivatives G-NH3 to form compounds containing &gt;C=N-C and water is known as_______ reaction.","choices":[{"text":"Nucleophilic addition","value":"A"},{"text":"Electrophilic addition","value":"B"},{"text":"Electrophilic substitution","value":"C"},{"text":"Nucleophilic substitution","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197427,"question":"Ethanol react with HCN to form cyanohydrin, it is an example of.","choices":[{"text":"Nucleophilic addition","value":"A"},{"text":"Electrophilic addition","value":"B"},{"text":"Electrophilic substitution","value":"C"},{"text":"Nucleophilic substitution","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":197426,"question":"The phenoxide ion is more stable than ethoxide ion as","choices":[{"text":"Lone pair oxygen atoms overlap with the delocalized bonding system in benzene","value":"A"},{"text":"Oxygen atom is directly bonded with benzene ring in the phmoxide ion","value":"B"},{"text":"The negative charge is localized on oxygen atom of phenoxide ion","value":"C"},{"text":"The negative charge is deloclized on oxygen atom of othoxide ion","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":197425,"question":"Alcohol reacts slowly with Na-metal as compared to water because it has low concentration of H+ ion which suggests that it is.","choices":[{"text":"Less acidic than water","value":"A"},{"text":"Less basic than phenol","value":"B"},{"text":"More acidic than phenol","value":"C"},{"text":"More acidic than water","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":197424,"question":"During the Sn1 reactions, the fast reaction involves.","choices":[{"text":"Breakage of covalent bond","value":"A"},{"text":"Formation of carbocation","value":"B"},{"text":"Transition state","value":"C"},{"text":"Atttack of nucleophile","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197423,"question":"In elimination reaction, alcoholic KOH is used -oh in this case will act as.","choices":[{"text":"Electrophile","value":"A"},{"text":"Base","value":"B"},{"text":"Leaving group","value":"C"},{"text":"Acid","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":197422,"question":"Liquid ammonia has become an important fertilizer for direct application to soil. It contains ____________ nitrogen.","choices":[{"text":"46%","value":"A"},{"text":"82%","value":"B"},{"text":"14%","value":"C"},{"text":"17%","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":197421,"question":"The reaction of bromine with benzene in the presence of FeBr3 follows the mechanism of","choices":[{"text":"Electrophilic addition","value":"A"},{"text":"Nucleophilic substution","value":"B"},{"text":"Electrophilic substitution","value":"C"},{"text":"Nucleophilic addition","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":197420,"question":"When benzene reacts with acetyl chloride in the presence of AlCl acetophenone is formed.The electrophile in this reaction will be.","choices":[{"text":"CH3 C+O","value":"A"},{"text":"AlCl3","value":"B"},{"text":"C+H2","value":"C"},{"text":"CH3 COCl","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":197419,"question":"Which of the following are 3,5 (meta) directing group when second group is introduced in them.<div>I = NH3        II= -CHO     III= - COOH    IV=-CH3</div>","choices":[{"text":"II,III and IV","value":"A"},{"text":"II and III","value":"B"},{"text":"I and IV","value":"C"},{"text":"I ,II and IV","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":197418,"question":"The type of structural isomerism which arises due to the difference in nature of carbon chains or carbon skeleton is.","choices":[{"text":"Chain Isomerism","value":"A"},{"text":"Position Isomerism","value":"B"},{"text":"Sis-Trans Isomerism","value":"C"},{"text":"Optical Isomerism","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":197417,"question":"Which one of the following is used as a typical catalyst for catalytic cracking.","choices":[{"text":"C Mixture of SiO2 and Ni","value":"A"},{"text":"Mixture of Pt and Cu","value":"B"},{"text":"Mixture of Fe and MgO","value":"C"},{"text":"Mixture of SIO2 and Al2O3","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197416,"question":"Nitrogen gas reacts under _________ conditions","choices":[{"text":"Standard","value":"A"},{"text":"Normal","value":"B"},{"text":"Cool","value":"C"},{"text":"Harsh","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197415,"question":"Violet colour of [Ti(H<sub>2</sub>O)]<sub>4</sub> ion is due to.","choices":[{"text":"Central metal ion","value":"A"},{"text":"Complex ion","value":"B"},{"text":"Water molecule","value":"C"},{"text":"Outer anion","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":197414,"question":"Scandium has atomic number 21, which one will be its electronic configuration.","choices":[{"text":"1s<sup>2</sup>, 2s<sup>2</sup>, 2p<sup>6</sup>, 3s<sup>2</sup>, 3p<sup>6</sup>, 3d<sup>1</sup>","value":"A"},{"text":"1s<sup>2</sup>, 2s<sup>2</sup>, 2p<sup>6</sup>, 3s<sup>2</sup>, 3p<sup>6</sup>, 4s<sup>2</sup>,3d<sup>1</sup>","value":"B"},{"text":"1s<sup>2</sup>, 2s<sup>2</sup>, 2p<sup>6</sup>, 3s<sup>2</sup>, 3p<sup>6</sup>, 4s<sup>2</sup>.4p<sup>1</sup>","value":"C"},{"text":"1s<sup>2</sup>, 2s<sup>2</sup>, 2p<sup>6</sup>, 3s<sup>2</sup>, 3p<sup>6</sup>, 4s<sup>1</sup>,4p<sup>2</sup>","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":197413,"question":"Which noble gas is alpha emitter?","choices":[{"text":"Xenon","value":"A"},{"text":"Radon","value":"B"},{"text":"Krypton","value":"C"},{"text":"Argon","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":197412,"question":"In elimination reaction , alcoholic KOH is used - OH in this case will act as.","choices":[{"text":"Electrphile","value":"A"},{"text":"Base","value":"B"},{"text":"Leaving group","value":"C"},{"text":"Acid","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":197411,"question":"The non-stick lining of pans is.","choices":[{"text":"Diffluoroethane","value":"A"},{"text":"Chlorofluororylhane","value":"B"},{"text":"Chloroethane","value":"C"},{"text":"Tetrafluoroethane","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197410,"question":"Which one of the following is halothane.","choices":[{"text":"Cl-CH2-CH2-Cl2","value":"A"},{"text":"CF-CHCl-Br","value":"B"},{"text":"CL-CH2-CH2-CH2-Br","value":"C"},{"text":"Br-CH2-CH2-Br","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":197409,"question":"In NO3 the oxidation number of N is.","choices":[{"text":"+5","value":"A"},{"text":"+2","value":"B"},{"text":"+3","value":"C"},{"text":"-3","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":197408,"question":"Isotopes symbol of ion of sulphur-33 is <sup>33 </sup>S-2 . How many no of protons<div>                               16<br><div>and neutrons are present if the number of electron are 18.</div></div>","choices":[{"text":"P=18, n = 15","value":"A"},{"text":"P = 16 , n = 17","value":"B"},{"text":"P = 16, n = 16","value":"C"},{"text":"P= 17, n = 16","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":197407,"question":"No of electron in <sup>69</sup>Ga<sup>3+</sup> will be<div>             31</div>","choices":[{"text":"28","value":"A"},{"text":"29","value":"B"},{"text":"30","value":"C"},{"text":"34","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":197406,"question":"Identify the element that has maximum oxidation states.","choices":[{"text":"Zinc","value":"A"},{"text":"Chromium","value":"B"},{"text":"Vanadium","value":"C"},{"text":"Maganese","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197405,"question":"A compound has an empirical formula CH2Cl2 and molecular formula mass as 99 mol-1, identify the compound.","choices":[{"text":"C2H4Cl","value":"A"},{"text":"C4H6Cl","value":"B"},{"text":"C2H4Cl2","value":"C"},{"text":"C2H4Cl3","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197404,"question":"Choose the correct option regarding number of particles associated with one mole of a substance.","choices":[{"text":"6.03 x 10<sup>24</sup>","value":"A"},{"text":"6.01 x 10<sup>19</sup>","value":"B"},{"text":"6.02 x 10<sup>21</sup>","value":"C"},{"text":"6.02 x 10<sup>23</sup>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":197403,"question":"Calculate the grams of H2O formed when 8 g of CH3 burns in excess of oxygen.","choices":[{"text":"21 grams","value":"A"},{"text":"19 grams","value":"B"},{"text":"18 grams","value":"C"},{"text":"15 grams","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197402,"question":"Determine the number of molecule O2 in 10.6 g of NaCO3","choices":[{"text":"0.4 moles","value":"A"},{"text":"0.3 moles","value":"B"},{"text":"0.2 moles","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":197401,"question":"Halogen are being used as fire extinguisher, mild antiseptic, CFCs and many other organic chemicals. Which of the following halogen is used to kill the bacteria in drinking water.","choices":[{"text":"Bromine","value":"A"},{"text":"Fluorine","value":"B"},{"text":"Chlorine","value":"C"},{"text":"Iodine","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197400,"question":"The essential property of a fertilizer is that it should be.","choices":[{"text":"Partially soluble","value":"A"},{"text":"Highly soluble","value":"B"},{"text":"In soluble","value":"C"},{"text":"Immiscible","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":197399,"question":"Nitrogen is present in air as a major constituent it is an inactive gas in comparison with oxygen which is the next major constituent of air Nonreactive nature of nitrogen is due to the reason.","choices":[{"text":"There is one lone pair of electron on each nitrogen atom in its molecule","value":"A"},{"text":"Nitrogen have three unpaired electron i its 2p orbital which is comparatively stable elecrtonic configuration","value":"B"},{"text":"There is a triple covalent bond in nitrogen molecule which in very strong and molecule is polar","value":"C"},{"text":"There is a triple covalent bond in nitrogen molecule which is very strong and molecule is non polar","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":197398,"question":"Which of the following would react with ozone in the atmosphere?","choices":[{"text":"F","value":"A"},{"text":"Cl","value":"B"},{"text":"O2","value":"C"},{"text":"O","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":197397,"question":"Which of these pollutants is produced by burning of coal and causes acid rain","choices":[{"text":"SO2","value":"A"},{"text":"CO2","value":"B"},{"text":"CO","value":"C"},{"text":"NO","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197396,"question":"Which is the structure of polyvinyl chloride?","choices":[{"text":"[H2C=CH-Cl]","value":"A"},{"text":"-[HCCl-CH-Cl]-","value":"B"},{"text":"-[H2C-CH-Cl]-","value":"C"},{"text":"-[CCl2-CCl2]-","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197395,"question":"Which one will be act as a strong acid.","choices":[{"text":"Dichloroethanoic acid","value":"A"},{"text":"Emanoic acid","value":"B"},{"text":"Chloroethanoic acid","value":"C"},{"text":"Trichlorothanoic acid","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197394,"question":"Which product is formed by teh reaction of carboxylic acid with alcohol?","choices":[{"text":"Aldehyde","value":"A"},{"text":"Ether","value":"B"},{"text":"Alkane","value":"C"},{"text":"Ester","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197393,"question":"Which mechanism of reaction is shown by carbonyl compounds?","choices":[{"text":"Nucleophilic addition","value":"A"},{"text":"Electrophilic substituion","value":"B"},{"text":"Free radical substitution","value":"C"},{"text":"Electrophilic addition","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197392,"question":"Why is it necessary to distill aldehyde formed from oxidation of primary alcohol through acidified potassium dichromate (VI) solution or acidified sodium dichromate (VI) solution.","choices":[{"text":"Aldehyde formed may be oxidised further to carboxylic and concerned","value":"A"},{"text":"Aldehyde formed may react with primary alcohol the original reactant","value":"B"},{"text":"Aldehyde formed may be oxidised further to a ketone","value":"C"},{"text":"Aldehyde formed is unstable and decomposed back to original precuser, ie. primary alcohol","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197391,"question":"Which of the following reagents is used to distinguish between aldehydes and ketones.?","choices":[{"text":"2,4 NDPH","value":"A"},{"text":"Bromine","value":"B"},{"text":"Alkaline Iodine","value":"C"},{"text":"Tollen's reagent","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197390,"question":"Alcohol in which carbon atom bonded to OH group is further attached with three alkyl group is","choices":[{"text":"Aromatic alcohol","value":"A"},{"text":"Tertiary alcohol","value":"B"},{"text":"Primary alcohol","value":"C"},{"text":"Secondary alcohol","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197389,"question":"Which one of the following compounds is known as tertiary alcohol?","choices":[{"text":"1-Propanol","value":"A"},{"text":"2-methyl-1 propanol","value":"B"},{"text":"2-propanol","value":"C"},{"text":"2-methyl-2-propanol","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":197388,"question":"Which one of the following compounds act as catalyst when alcohols react with carboxylic acids.","choices":[{"text":"Pt","value":"A"},{"text":"Conc. H2SO5","value":"B"},{"text":"Conc HNO3","value":"C"},{"text":"Ni","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":197387,"question":"Select one which is alcohol","choices":[{"text":"CH3-CH2-OH","value":"A"},{"text":"CH3COOH","value":"B"},{"text":"CH3-O-CH3","value":"C"},{"text":"CH3-CH2-Br","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197386,"question":"Which compound will be produced by the oxidation of ethanol by acidified K2Cr2O7?","choices":[{"text":"Ethanone","value":"A"},{"text":"Ethene","value":"B"},{"text":"Ethanoic acid","value":"C"},{"text":"Ethanol","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197385,"question":"Nylon -6,6 also called","choices":[{"text":"Polyvinyl alcohol","value":"A"},{"text":"Polystyren","value":"B"},{"text":"Polyamide","value":"C"},{"text":"Polyester","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":197384,"question":"Alcohol in which carbon atom bonded to OH group is further attached with three alkyl group is .","choices":[{"text":"Aromatic alcohol","value":"A"},{"text":"Tertiary alcohol","value":"B"},{"text":"Primary Alcohol","value":"C"},{"text":"Secondary Alcohol","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197383,"question":"Which of the following acts as a nucleophile in the reaction of alkyl halide with alcoholic aqueous ammonia?","choices":[{"text":"NH3","value":"A"},{"text":"H+","value":"B"},{"text":"Br-","value":"C"},{"text":"NO2-","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":197382,"question":"What is teh order of increasing reactivity of alkyl halides?","choices":[{"text":"Iodoalkane &lt;bromoalkane&lt;chloroalkane&lt;Fluoroalkane","value":"A"},{"text":"Fluoroalkane&lt;Chloroalkane&lt;Bromoalkane&lt;Iodoalkane","value":"B"},{"text":"Iodoalkane&lt;Bromoalkane&lt;Chloroalkane&lt;Fluoroalkane","value":"C"},{"text":"Fluroalkane&lt;Chloroalakane&lt; Bromo alkane&lt;Iodo alkane","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197381,"question":"Which of following compound is solid and room temperature?","choices":[{"text":"Ethanal","value":"A"},{"text":"Phenol","value":"B"},{"text":"Butane","value":"C"},{"text":"Methanol","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":197380,"question":"Halogen is a halo derivative of","choices":[{"text":"Ethanol","value":"A"},{"text":"Methane","value":"B"},{"text":"Methanol","value":"C"},{"text":"Ethane","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":197379,"question":"Reaction mechanism of alkanes with halogens is known as","choices":[{"text":"Propagation","value":"A"},{"text":"Additon","value":"B"},{"text":"Elimination","value":"C"},{"text":"Free radical substitution","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":197378,"question":"Butane molecule can have max no of isomers.","choices":[{"text":"4","value":"A"},{"text":"5","value":"B"},{"text":"3","value":"C"},{"text":"2","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":197377,"question":"Which of the following acts as a electrocphile in the electrphilic substitution of benzene.with bromine.?","choices":[{"text":"Fe<sup>-3</sup>","value":"A"},{"text":"Br-","value":"B"},{"text":"FeCl<sup>4-</sup>","value":"C"},{"text":"Fe<sup>+2</sup>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":197376,"question":"Which compound is obtained by the elimination of bromopropane?","choices":[{"text":"Propene","value":"A"},{"text":"Ethene","value":"B"},{"text":"Propane","value":"C"},{"text":"Butane","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":197375,"question":"The species which are produced by electrolytic bond breaking and can act as electron pair donors are known as.","choices":[{"text":"Cations","value":"A"},{"text":"Anions","value":"B"},{"text":"Nucleophiles","value":"C"},{"text":"Free radical","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":197374,"question":"Ligands having two lone pair of electrons for donation to the central transition metal ion are known as.","choices":[{"text":"Bidentate ligands","value":"A"},{"text":"Hexadentate ligands","value":"B"},{"text":"Polydentate ligands","value":"C"},{"text":"Monodentate ligands","value":"D"},{"value":"E"}],"correctAnswer":3}]