JEE Main & Advanced Chemistry Chemical Bonding and Molecular Structure / रासायनिक आबंधन एवं आणविक संरचना Question Bank

done Hydrogen bonding Total Questions - 50

• question_answer1)
  In the following which bond will be responsible for maximun value of hydrogen bond
  A)
                  \[O-H\] done clear
  B)
                  \[N-H\] done clear
  C)
                  \[S-H\]  done clear
  D)
                  \[F-H\] done clear
  View Solution play_arrow

• question_answer2)
  In which of the following hydrogen bond is present
  A)
                  \[{{H}_{2}}\]       done clear
  B)
                  Ice done clear
  C)
                  Sulphur                done clear
  D)
                  Hydrocarbon done clear
  View Solution play_arrow

• question_answer3)
  In the following which has highest boiling point [MP PMT 1989; RPMT 1997]
  A)
                  \[HI\]    done clear
  B)
                  \[HF\] done clear
  C)
                  \[HBr\] done clear
  D)
                  \[HCl\] done clear
  View Solution play_arrow

• question_answer4)
  Which contains hydrogen bond                                 [MP PMT 1989]
  A)
                  \[HF\]   done clear
  B)
                  \[HCl\] done clear
  C)
                  \[HBr\] done clear
  D)
                  \[HI\] done clear
  View Solution play_arrow

• question_answer5)
  Contrary to other hydrogen halides, hydrogen fluoride is a liquid because            [MP PMT 1990; AMU 1983; EAMCET 1980]
  A)
                  Size of \[F\]atom is small done clear
  B)
                  \[HF\]is a weak acid done clear
  C)
                  \[HF\]molecule are hydrogen bonded done clear
  D)
                  Fluorine is highly reactive done clear
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• question_answer6)
  In the following which species does not contain \[s{{p}^{3}}\] hybridization                                         [DPMT 1985]
  A)
                  \[SO_{4}^{2-}\] done clear
  B)
                  \[C{{H}_{4}}\] done clear
  C)
                  \[{{H}_{2}}O\]   done clear
  D)
                  \[C{{O}_{2}}\] done clear
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• question_answer7)
  As a result of \[sp\] hybridization, we get             [IIT 1984]
  A)
                  Two mutual perpendicular orbitals done clear
  B)
                  Two orbitals at \[{{180}^{o}}\] done clear
  C)
                  Four orbitals in tetrahedral directions done clear
  D)
                  Three orbitals in the same plane done clear
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• question_answer8)
  The reason for exceptionally high boiling point of water is [DPMT 1986; NCERT 1976; AMU 1984; EAMCET 1979; MP PMT 1993; AIIMS 1996; KCET 2001; CPMT 2003]
  A)
                  Its high specific heat done clear
  B)
                  Its high dielectric constant done clear
  C)
                  Low ionization of water molecules done clear
  D)
                  Hydrogen bonding in the molecules of water done clear
  View Solution play_arrow

• question_answer9)
  Which concept best explains that o-nitrophenol is more volatile than p-nitrophenol                         [AIIMS 1980, 82; Kurukshetra CEE 1998; MP PET 2002]
  A)
                  Resonance          done clear
  B)
                  Hyperconjugation done clear
  C)
                  Hydrogen bonding          done clear
  D)
                  Steric hindrence done clear
  View Solution play_arrow

• question_answer10)
  Which contains strongest \[H-\]bond                         [IIT 1986; MP PET 1997, 2003; UPSEAT 2001, 03]
  A)
                  \[O-H.....S\]        done clear
  B)
                  \[S-H.....O\] done clear
  C)
                  \[F-H.....F\]         done clear
  D)
                  \[S-H.....O\] done clear
  View Solution play_arrow

• question_answer11)
  Which of the following compound can form hydrogen bonds      [NCERT 1978; MP PMT 1997]
  A)
                  \[C{{H}_{4}}\] done clear
  B)
                  \[NaCl\] done clear
  C)
                  \[CHC{{l}_{3}}\]                done clear
  D)
                  \[{{H}_{2}}O\] done clear
  View Solution play_arrow

• question_answer12)
  Of the following hydrides which has the lowest boiling point [CBSE PMT 1987]
  A)
                  \[N{{H}_{3}}\]   done clear
  B)
                  \[P{{H}_{3}}\] done clear
  C)
                  \[Sb{{H}_{3}}\]  done clear
  D)
                  \[As{{H}_{3}}\] done clear
  View Solution play_arrow

• question_answer13)
  The pairs of bases in \[DNA\] are held together by [NCERT 1978; DPMT 1985; CBSE PMT 1992]
  A)
                  Hydrogen bonds done clear
  B)
                  Ionic bonds done clear
  C)
                  Phosphate groups           done clear
  D)
                  Deoxyribose groups done clear
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• question_answer14)
  Water has high heat of vaporisation due to          [AFMC 1982]
  A)
                  Covalent bonding            done clear
  B)
                  \[H-\]bonding done clear
  C)
                  Ionic bonding        done clear
  D)
                  None of the above done clear
  View Solution play_arrow

• question_answer15)
  In which of the following compounds does hydrogen bonding occur                                        [CBSE PMT 1989]
  A)
                  \[Si{{H}_{4}}\]   done clear
  B)
                  \[LiH\] done clear
  C)
                  \[HI\]    done clear
  D)
                  \[N{{H}_{3}}\] done clear
  View Solution play_arrow

• question_answer16)
  Which among the following compounds does not show hydrogen bonding                                          [MP PMT 1989]
  A)
                  Chloroform         done clear
  B)
                  Ethyl alcohol done clear
  C)
                  Acetic acid           done clear
  D)
                  Ethyl ether done clear
  View Solution play_arrow

• question_answer17)
  Acetic acid exists as dimer in benzene due to      [CPMT 1982]
  A)
                  Condensation reaction done clear
  B)
                  Hydrogen bonding done clear
  C)
                  Presence of carboxyl group done clear
  D)
                  Presence of hydrogen atom at \[\alpha -\]carbon done clear
  View Solution play_arrow

• question_answer18)
  Which one among the following does not have the hydrogen bond         [IIT 1983; MP PMT 1994;  UPSEAT 2001]
  A)
                  Phenol  done clear
  B)
                  Liquid \[N{{H}_{3}}\] done clear
  C)
                  Water   done clear
  D)
                  Liquid \[HCl\] done clear
  View Solution play_arrow

• question_answer19)
  The bond that determines the secondary structure of a protein is            [NCERT 1984; MP PET 1996]
  A)
                  Coordinate bond              done clear
  B)
                  Covalent bond done clear
  C)
                  Hydrogen bond                done clear
  D)
                  Ionic bond done clear
  View Solution play_arrow

• question_answer20)
  \[HCl\] is a gas but \[HF\]is a low boiling liquid. This is because [NCERT 1984; MP PMT 2001]
  A)
                  \[H-F\]bond is strong done clear
  B)
                  \[H-F\]bond is weak done clear
  C)
                  Molecules aggregate because of hydrogen bonding done clear
  D)
                  \[HF\]is a weak acid done clear
  View Solution play_arrow

• question_answer21)
  The relatively high boiling point of \[HF\]is due to [NCERT 1984]
  A)
                  Hydrogen bonding          done clear
  B)
                  Covalent bonding done clear
  C)
                  Unshared electron pair on \[F\] done clear
  D)
                  Being a halogen acid done clear
  View Solution play_arrow

• question_answer22)
  Water is liquid due to     [MADT Bihar 1983]
  A)
                  Hydrogen bonding          done clear
  B)
                  Covalent bond done clear
  C)
                  Ionic bond           done clear
  D)
                  Vander Waals forces done clear
  View Solution play_arrow

• question_answer23)
  The maximum possible number of hydrogen bonds in which an \[{{H}_{2}}O\]molecule can participate is                                                                         [MP PMT 1986; MNR 1991; IIT 1992;MP PET 1999]
  A)
                  1              done clear
  B)
                  2 done clear
  C)
                  3              done clear
  D)
                  4 done clear
  View Solution play_arrow

• question_answer24)
  Hydrogen bonding is maximum in [IIT 1987; MP PMT 1991; MP PET 1993, 2001; MNR 1995; CPMT 1999; KCET (Med.) 2002]
  A)
                  Ethanol                 done clear
  B)
                  Diethyl ether done clear
  C)
                  Ethyl chloride     done clear
  D)
                  Triethyl amine done clear
  View Solution play_arrow

• question_answer25)
  The hydrogen bond is strongest in [BHU 1987; CBSE PMT 1990, 92]
  A)
                  Water   done clear
  B)
                  Ammonia done clear
  C)
                  Hydrogen fluoride           done clear
  D)
                  Acetic acid done clear
  View Solution play_arrow

• question_answer26)
  The high boiling point of ethanol \[({{78.2}^{o}}C)\] compared to dimethyl ether\[(-{{23.6}^{o}}C)\], though both having the same molecular formulae \[{{C}_{6}}{{H}_{6}}O\], is due to [MP PMT 1993]
  A)
                  Hydrogen bonding          done clear
  B)
                  Ionic bonding done clear
  C)
                  Coordinate covalent bonding done clear
  D)
                  Resonance done clear
  View Solution play_arrow

• question_answer27)
  Methanol and ethanol are miscible in water due to [CPMT 1989]
  A)
                  Covalent character          done clear
  B)
                  Hydrogen bonding character done clear
  C)
                  Oxygen bonding character           done clear
  D)
                  None of these done clear
  View Solution play_arrow

• question_answer28)
  B.P. of \[{{H}_{2}}O\,({{100}^{o}}C)\] and \[{{H}_{2}}S\,(-{{42}^{o}}C)\] explained by
  A)
                  Vander Waal's forces     done clear
  B)
                  Covalent bond done clear
  C)
                  Hydrogen bond                done clear
  D)
                  Ionic bond done clear
  View Solution play_arrow

• question_answer29)
  Strength of hydrogen bond is intermediate between [DPMT 1991]
  A)
                  Vander Waal and covalent done clear
  B)
                  Ionic and covalent done clear
  C)
                  Ionic and metallic done clear
  D)
                  Metallic and covalent done clear
  View Solution play_arrow

• question_answer30)
  In which of the following compounds intramolecular hydrogen bond is present [MP PET 1994]
  A)
                  Ethyl alcohol       done clear
  B)
                  Water done clear
  C)
                  Salicylaldehyde done clear
  D)
                  Hydrogen sulphide done clear
  View Solution play_arrow

• question_answer31)
  Hydrogen bonding is formed in compounds containing hydrogen and                                     [MP PET 1995]
  A)
                  Highly electronegative atoms done clear
  B)
                  Highly electropositive atoms done clear
  C)
                  Metal atoms with d-orbitals occupied done clear
  D)
                  Metalloids done clear
  View Solution play_arrow

• question_answer32)
  Which of the following compounds in liquid state does not have hydrogen bonding         [MP PMT 1996]
  A)
                        done clear
  B)
                  done clear
  C)
                  done clear
  D)
                  done clear
  View Solution play_arrow

• question_answer33)
  Compounds showing hydrogen bonding among  and are
  A)
                  Only  and done clear
  B)
                  Only  and done clear
  C)
                  Only  and done clear
  D)
                  All the four done clear
  View Solution play_arrow

• question_answer34)
  The high density of water compared to ice is due to [CBSE PMT 1997; BHU 1999; AFMC 2001]
  A)
                  Hydrogen bonding interactions done clear
  B)
                  Dipole-dipole interactions done clear
  C)
                  Dipole-induced dipole interactions done clear
  D)
                  Induced dipole-induced dipole interactions done clear
  View Solution play_arrow

• question_answer35)
  Ethanol and dimethyl ether form a pair of functional isomers. The boiling point of ethanol is higher than that of dimethyl ether due to the presence of     [AIIMS 1998]
  A)
                  Hydrogen bonding in ethanol done clear
  B)
                  Hydrogen bonding in dimethyl ether done clear
  C)
                   group in ethanol done clear
  D)
                   group in dimethyl ether done clear
  View Solution play_arrow

• question_answer36)
  Which of the following hydrogen bonds are strongest in vapour phase                                   [AMU 1999]
  A)
                           done clear
  B)
                  done clear
  C)
                       done clear
  D)
                  done clear
  View Solution play_arrow

• question_answer37)
  Which of the following shows hydrogen bonding [CPMT 2000]
  A)
                        done clear
  B)
                  P done clear
  C)
                  As           done clear
  D)
                  Sb done clear
  View Solution play_arrow

• question_answer38)
  The boiling point of a compound is raised by       [DPMT 2001]
  A)
                  Intramolecular hydrogen bonding done clear
  B)
                  Intermolecular hydrogen bonding done clear
  C)
                  Covalent bonding            done clear
  D)
                  Ionic covalent done clear
  View Solution play_arrow

• question_answer39)
  The boiling point of water is exceptionally high because [KCET 2001]
  A)
                  Water molecule is linear done clear
  B)
                  Water molecule is not linear done clear
  C)
                  There is covalent bond between H and O done clear
  D)
                  Water molecules associate due to hydrogen bonding done clear
  View Solution play_arrow

• question_answer40)
   has a much higher boiling point than  because [UPSEAT 2002; MNR 1994]
  A)
                   has a larger molecular weight done clear
  B)
                   undergoes umbrella inversion done clear
  C)
                   forms hydrogen bond done clear
  D)
                   contains ionic bonds whereas  contains covalent bonds done clear
  View Solution play_arrow

• question_answer41)
  Which one has the highest boiling point                [MP PET 2002]
  A)
                  Acetone               done clear
  B)
                          Ethyl alcohol done clear
  C)
                  Diethyl ether     done clear
  D)
                  Chloroform done clear
  View Solution play_arrow

• question_answer42)
  Which of the following compounds has the highest boiling point                                               [JIPMER 2002]
  A)
                  HCl         done clear
  B)
                          HBr done clear
  C)
                  done clear
  D)
                  done clear
  View Solution play_arrow

• question_answer43)
  Which of the following has minimum melting point [UPSEAT 2003]
  A)
                  CsF         done clear
  B)
                          HCl done clear
  C)
                  HF           done clear
  D)
                  LiF done clear
  View Solution play_arrow

• question_answer44)
  Hydrogen bond energy is equal to                           [UPSEAT 2003]
  A)
                  3 ? 7 kcals            done clear
  B)
                  30 ? 70 kcals done clear
  C)
                  3 ? 10 kcals         done clear
  D)
                  30 ? 70 kcals done clear
  View Solution play_arrow

• question_answer45)
   is a liquid while is gas due to   [BHU 2003]
  A)
                  Covalent bonding            done clear
  B)
                  Molecular attraction done clear
  C)
                  H ? bonding        done clear
  D)
                  H ? bonding and molecular attraction done clear
  View Solution play_arrow

• question_answer46)
  H ? bonding is maximum in          [BHU 2003]
  A)
                                done clear
  B)
                  done clear
  C)
                         done clear
  D)
                  done clear
  View Solution play_arrow

• question_answer47)
  Select the compound from the following which dissolves in water                                            [IIT 1980]
  A)
                        done clear
  B)
                  done clear
  C)
                     done clear
  D)
                  done clear
  View Solution play_arrow

• question_answer48)
  When two ice cubes are pressed over each other, they unit to form one cube. Which of the following force is responsible for holding them together           [NCERT 1978]
  A)
                  Vander Waal's forces     done clear
  B)
                  Hydrogen bond formation done clear
  C)
                  Covalent attraction done clear
  D)
                  Dipole?dipole attraction done clear
  View Solution play_arrow

• question_answer49)
  Which is the weakest among the following types of bond             [NCERT 1979; MADT Bihar 1984]
  A)
                  Ionic bond           done clear
  B)
                  Metallic bond done clear
  C)
                  Covalent bond  done clear
  D)
                  Hydrogen bond done clear
  View Solution play_arrow

• question_answer50)
  H-bond is not present in               [BCECE 2005]
  A)
                  Water   done clear
  B)
                  Glycerol done clear
  C)
                  Hydrogen fluoride           done clear
  D)
                  Hydrogen Sulphide done clear
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