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1) In which compound nitrogen has maximum oxidation state a. N2O b. NO2 c. HNO2 d. HNO3
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2) When sulphuric acid is treated with ethanol sulphuric acid behaves like a. an acid b. a dehydrating agent c. an oxidizing agent d. as sulphonating agent
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3) Main source of organic compounds is a. Animal b. Fossil c. Coal d. Plants
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4) Octane number can be improved by a. Isomerization b. Adding (C2H5)4 Pb c. Adding (CH3)4 Pb d. All
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5) Hydro carbons which burn with smoky flame are called a. Aliphatic b. Alicyclic c. Aromatic d. Aldehyde
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6) Octane number 2 2 4-trimethyl pentane is a. 100 b. 90 c. 80 d. 70
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7) Propene can exhibit a. cis-trans isomerism b. geometric isomerism c. both a & b d. none of the above
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8) Geometric isomerism is usually found in a. Alkanes b. Alkenes c. Alkynes d. Esters
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9) Pentane and 2-methyl butance have the same a. Boiling point b. Melting point c. Percentage composition d. Structural formula
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10) Organic compounds that are essentially nonpolar and exhibit weak intermolecular forces have a. Low melting points b. Low vapour pressure c. High boiling points d. High electrical conductivity
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11) The first organic compound was synthesized in laboratory by a. Wohler b. Kolbe c. Berzilius d. Berthelot
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12) According to vital force theory a. Oorganic compounds can be synthesized from inorganic compounds b. organic compounds cannot be synthesized from inorganic compounds c. organic compounds can be synthesized by animals d. organic compounds can be synthesized by plants
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13) First organic compound synthesized in laboratory was a. tartaric acid b. ethyl alcohol c. methanol d. urea
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14) A double bond consists of a. Two sigma bonds b. Two Pi bonds c. One sigma and one Pi bonds d. One sigma and two Pi bonds
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15) The property of carbon chain formation is called a. catenation b. hybridization c. polymerization d. solvation
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16) Chemical properties of first member of homologous series with respect to other members are a. same b. different c. depends upon number of C atoms d. depends upon number of H atoms
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17) The organic compounds having very high molecular weight are called a. carboxylic acids b. ketones c. aldehydes d. polymers
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18) Compounds having same molecular formula but differ in structural formula are called a. polymer b. monomer c. isomer d. allotropes
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19) Rate of reactions of most organic compounds are a. very slow b. very fast c. slow d. no regular character present
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20) Organic compounds are soluble in a. polar solvent b. non-polar solvent c. alkalies d. water
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21) Coal is produced after a long time decay of a. animals b. fossils c. wood d. all of the above
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22) Methane is used in power generation in chemical industries being a a. natural gas b. good caloric value c. cheaper d. All
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23) Crude oil is blackish coloured liquid produced after the decay of organic matter present between a. earth layer b. mountains c. sedimentary rocks d. rocks
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24) The precess in which larger molecule with higher molecular weight breaks down into smaller moleucles with lower molecular weight a. polymerization b. pyrolysis c. isomerism d. no such process occurs
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25) At low temperature and pressure cracking can be done in presence of catalyst a. Al2O3 b. Fe2O3 c. Al2O3 and SiO2 d. Fe2O3 and SiO2
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26) The metallic sound produced by engine due to the pre-ignition of fuel is called a. knocking b. reforming c. cracking d. a and c
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27) Which one of the following compounds shows intense knocking? a. n-pentane b. iso-heptane c. iso-octane d. n-heptane
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28) Which of the following can be used as anti-knocking agent. a. PbCl2 b. (C2H5)4 Pb c. (C2H5)2 Pb d. all of the above
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29) Ether functional group can be represented as a. ?OH b. R-CO-R c. R-O-R d. R-COOH
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30) Isomerism which is present only in alkene is a. structural isomerism b. metamerism c. cis-trans isomerism d. both b and c
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31) A single atom or group of atoms which gives characteristic properties to a compound is called a. radical b. hydrocarbon c. functional group d. ion
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32) Compound containing benzene ring in their structure are a. aliphatic b. aromatic c. carboxylic acid d. carbohydrates
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33) 2-propanol and 1-propanol show the isomerism a. metamerism b. functional group isomerism c. geometric isomerism d. position isomerism
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34) Which of the following is an amide a. R-NH2 b. RCONH2 c. R - NH - R d. C6H5NH2
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35) In sp3 hybridization the expected geometry of molecules will be a. square planar b. trigonal pyramidal c. tetrahedral d. linear
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36) Only sigma bonds are present in a. propene b. butanoic acid c. butanal d. ethoxy ethane
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37) In cyano group the carbon atom shows which kind of hybridization a. sp2 b. sp c. sp3 d. none of the above
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38) The structure of ethyne is a. angular b. trigonal c. linear d. trigonal planar
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39) the fractional distillation of petroleum produces gasoline up to a. 10% b. 15% c. 20% d. 30%
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40) The general formula of cycloalkene is a. CnH2n b. CnH2n+2 c. CnH2n-1 d. CnH2n-2
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41) Which is not heterocyclic compound a. Furan b. Thiophene c. Aniline d. Pyridine
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42) C5H12 has the number of isomers a. one b. two c. three d. four
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43) Ethyl chloride with nascent hydrogen produces a. methane b. ethane c. propane d. butane
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44) Which one is not a nucleophile? a. C2H5O- b. SCN- c. NH3 d. H3C+
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45) The number of molecules taking part in the rate determining step is called a. Order of reaction b. Rate of reaction c. Mole of a reaction d. Extent of a reaction
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46) What will be the order of reaction of a reaction whose rate can be expressed as R = K [A] [B]? a. Zero b. One c. Two d. Three
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47) What is the order of kinetics in the SN1 mechanism? a. Zero b. First c. Second d. Third
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48) Which alkyl halide out of the following may follow both SN1 and SN2 mechanism? a. CH3-X b. (CH3)3 C-CH2 - X c. (CH3)2 CH - X d. (CH3)3 C - X
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49) When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed? a. 2 moles of ethane b. 1 mole of ethane c. 2 moles of butane d. 1 mole of butane
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50) The ether used in Wurtz synthesis is a. acidic b. basic c. aqueous d. dry
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