2017 NEET Chemistry Solved Paper

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Previous Year Paper Chemistry - 2017
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Chemistry NEET 2017
Exam Year 2017
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• Multiple Choice Questions
• With respect to the conformers of ethane, which
  of the following statements is true? Bond angle
  remains same but bond length changes
• Bond angle changes but bond length remains same
  Both bond angle and bond length change
• Both bond angles and bond length remains same
  Answer
• Which of the following pairs of compounds is
  isoelectronic and isostructural? BeCl2, XeF2
• Tel2, XeF2
• IBr - , XeF
• 2
• IF3, XeF2
• Answer
• HgCl and I both when dissolved in water
  containing I ions the pair of species formed is
• 2 2
• HgI , I -

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Chemistry NEET 2017
Exam Year 2017
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• 1136.5 J
• -500 J
• -505 J
• 505 J
• Answer
• The element Z 114 has been discovered recently.
  It will belong to which of the following family
  group and electronic con?guration?
• Halogen family, Rn 5f14 6d10 7s2 7p5 Carbon
  family, Rn 5f14 6d10 7s2 7p2 Oxygen
  family,Rn 5f14 6d10 7s2 7p4 Nitrogen family,
  Rn 5f14 6d10 7s2 7p3
• Answer
• Match the interhalogen compounds of column I with
  the geometry in column II and assign the correct
  code

Column I Column II a) XX' (i) T-shape
(ii) Pentagonal bipyramidal
b) XX '
3
XX'5 XX'7 Linear Square-pyramidal Tetrahedral
(a) (b) (c) (d) (iii) (iv) (i) (ii)
(a) (iii) (b) (i) (c) (iv (d) (ii)
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Chemistry NEET 2017
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(a) (iv) (b) (v) (c) (iii) (d) (ii)
(a) (iv) (b) (iii) (c) (ii) (d) (i)

• Answer
• 8. 20-litre container at 400 K contains CO2(g)
  at pressure 0.4 atm and an excess of SrO (neglect
  the volume of
• solid SrO). The volume of the containers is now
  decreased by moving the movable piston ?tted in
  the container. The maximum volume of the
  container, when pressure of CO2 attains its
  maximum value, will be
• Given that SrCO3 ? SrO(s) CO2(g) kp 1.6 atm)
  5 litre
• 10 litre
• 8 litre
• 3 litre Answer
• For a given reaction, ?H 35.5 kJ mol1 and ?S
  83.6 JK1 mol1. The reaction is spontaneous at
  (Assume that ?H and ?S do not vary with
  temperature)
• T lt 425 K T gt 425 K
• All temperatures T gt 298 K
• Answer
• The correct statement regarding electrophile is
• Electrophile is a negatively charged species and
  can form a bond by accepting a pair of electrons
  from a nucleophile
• Electrophile is a negatively charged species and
  can form a bond by accepting a pair of electrons
  from another electrophile
• Electrophiles are generally neutral species and
  can form a bond by accepting a pair of electrons
  from a nucleophile
• Electrophile can be either neutral or positively
  charged species and can form a bond by accepting a

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Chemistry NEET 2017
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• pair of electrons from a nucleophile
• Answer
• Which of the following is a sink for CO?
  Haemoglobin
• Micro-organisms present in the soil
• Oceans Plants
• Answer
• The most suitable method of separation of 1 1
  mixture of ortho and para-nitrophenols is
  Sublimation
• Chromatography Crystallisation Steam
  distillation
• Answer
• Which one of the following pairs of species has
  the same bond order? CO, NO
• O
• 2, NO
• CN, CO N2, O2
• Answer
• Which is the incorrect statement?
• FeO0.98 has non stoichiometric metal de?ciency
  defect Density decreases in case of crystals
  with Schottky's defect
• NaCl(s) is insulator, silicon is
  semiconductor,silver is conductor, quartz is
  piezo electric crystal
• Frenkel defect is favoured in those ionic
  compounds in which sizes of cation and anionsare
  almost equal

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Chemistry NEET 2017
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5.3 1012 Answer 16. The species, having bond
angles of 120 is PH3
CIF3 NCl3 BCl3 Answer 17. If molality of the
dilute solution is doubled, the value of molal
depression constant (Kf) will be

• Doubled
• Halved Tripled Unchanged
• Answer
• It is because of inability of ns2 electrons of
  the valence shell to participate in bonding that
  Sn2 is reducing while Pb4 is oxidising
• Sn2 is oxidising while Pb4 is reducing
• Sn2 and Pb2 are both oxidising and reducing
  Sn4 is reducing while Pb4 is oxidising
• Answer
• Which one of the following statements is not
  correct? Catalyst does not initiate any reaction
• The value of equilibrium constant is changed in
  the presence of a catalyst in the reaction at
  equilibrium
• Enzymes catalyse mainly bio-chemical reactions
• Coenzymes increase the catalytic activity of
  enzyme Answer
• The reason for greater range of oxidation states
  in actinoids is attributed to The radioactive
  nature of actinoids

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Chemistry NEET 2017
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• Actinoid contraction
• 5f, 6d and 7s levels having comparable energies
  4f and 5d levels being close in energies
• Answer
• An example of a sigma bonded organometallic
  compound is Ruthenocene
• Grignard's reagent Ferrocene Cobaltocene
• Answer
• Which of the following is dependent on
  temperature? Molality
• Molarity Mole fraction
• Weight percentage Answer
• In the electrochemical cell
• ZnZnSO4(0.01M)CuSO4(1.0 M)Cu, the emf of this
  Daniel cell is E1. When the concentration of
  ZnSO4 is changed to 1.0 M and that of CuSO4
  changed to 0.01 M, the emf changes to E2. From
  the following, which one is the relationship
  between E1 and E2?
• (Given, RT/F 0.059) E1 E2
• E1lt E2 E1gt E2
• E2 0 ? E1
• Answer
• In which pair of ions both the species contain S
  S bond? S 2, S 2
• 2O7 2O3
• S 2, S 2 4O6 2O3

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Chemistry NEET 2017
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• 25. The correct order of the stoichiometries of
  AgCl formed when AgNO3 in excess is treated with
  the
• complexes CoCl3.6NH3, CoCl3.5NH3, CoCl3.4NH3
  respectively is 1 AgCl, 3 AgCl, 2 AgCl
• 3 AgCl, 1 AgCl, 2 AgCl
• 3 AgCl, 2 AgCl, 1 AgCl
• 2 AgCl, 3 AgCl, 1 AgCl Answer
• Correct increasing order for the wavelengths of
  absorption in the visible region for the
  complexes of Co3 is Co(en) 3, Co(NH ) 3,
  Co(H O) 3
• 3 3 6 2 6
• Co(H 3 3 3 2O)6 , Co(en)3 , Co(NH3)6
• Co(H 3 3 3 2O)6 , Co(NH3)6 , Co(en)3
• Co(NH 3 3 3 3)6 , Co(en)3 , Co(H2O)6
• Answer
• A ?rst-order reaction has a speci?c reaction rate
  of 102 s1. How much time will it take for 20 g
  of the reactant to reduce to 5 g?
• 238.6 second
• 138.6 second
• 346.5 second
• 693.0 second Answer

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Chemistry NEET 2017
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Answer 30. The equilibrium constants of the
following are.
The equilibrium constant (K) of the reaction

• Answer
• Extraction of gold and silver involves leaching
  with CN ion. Silver is later recovered by
  Liquation
• Distillation Zone re?ning
• Displacement with Zn Answer
• Extraction of gold and silver involves leaching
  with CN ion. Silver is later recovered by
  Liquation
• Distillation Zone re?ning
• Displacement with Zn Answer
• Pick out the correct statement with respect
• Mn(CN) 3
• 6
• It is sp3d2 hybridised and octahedral It is
  sp3d2 hybridised and tetrahedral It is d2sp3
  hybridised and octahedral

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Chemistry NEET 2017
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• It is dsp2 hybridised and square planar
• Answer
• Mixture of chloroxylenol and terpineol acts as
  Analgesic
• Antiseptic Antipyretic Antibiotic
• Answer
• Of the following, which is the product formed
  when cyclohexanone undergoes aldol condensation
  followed by heating?

Answer 36. Which one is the most acidic compound?
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Chemistry NEET 2017
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• Answer
• Which of the following statements is not correct?
• Insulin maintains sugar level in the blood of
  ahuman body Ovalbumin is a simple food reserve
  in egg-white
• Blood proteins thrombin and ?brinogen are
  involved in blood clotting Denaturation makes
  the proteins more active
• Answer
• Predict the correct intermediate and product in
  the following reaction

Answer 39. Consider the reactions
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Chemistry NEET 2017
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• A-Methoxymethane, X-Ethanoic acid, Y-Acetate ion,
  Z-hydrazine
• A-Methoxymethane, X-Ethanol, Y-Ethanoic acid,
  Z-Semicarbazide A-Ethanal, X-Ethanol,
  Y-But-2-enal, Z-Semicarbazone
• A-Ethanol, X-Acetaldehyde, Y-Butanone,
  Z-Hydrazone Answer
• Which one is the correct order of acidity?
• CH2 CH2gt CH3 CH CH2gt CH3 C CH gt CH CH
  CH CH gt CH3 C CH gt CH2 CH2gt CH3 CH3
• CH CH gt CH2 CH2gt CH3 C CH gtCH3 CH3 CH3
  CH3gt CH2 CH2gt CH3 C CH gtCH CH
• Answer
• The correct increasing order of basic strength
  for the following compounds is

• lt III lt I
• lt I lt II III lt II lt I II lt I lt III
• Answer
• 42. Identify A and predict the type of reaction

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Chemistry NEET 2017
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• Answer
• The heating of phenyl-methyl ethers with HI
  produces. Ethyl chlorides
• Iodobenzene Phenol Benzene
• Answer
• Which of the following reactions is appropriate
  for converting acetamide to methanamine?
  Carbylamine reaction
• Ho?mann hypobromamide reaction Stephens reaction
• Gabriels phthalimide synthesis Answer
• The IUPAC name of the compound

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Chemistry NEET 2017
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3-keto-2-methylhex-4-enal 5-formylhex-2-en-3-one 5
-methyl-4-oxohex-2-en-5-al 3-keto-2-methylhex-5-e
nal Answer
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