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Title: 2016 JEE Chemistry Solved paper


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Previous Year Paper Chemistry - 2016
2
Chemistry JEE 2016
Exam Year 2016
Study, Assignments, Solved Previous Year Papers .
Questions and Answers. Free Forever.
Multiple Choice Questions 1. A stream of
electrons from a heated ?lament was passed
between two charged plates kept at a potential
di?erence V esu. If e and m are charge and mass
of an electron, respectively, then the value of
h/? (where ? is wavelength associated with
electron wave) is given by 2meV
  • mev
  • Answer
  • The heats of combustion of carbon and carbon
    monoxide are -393.5 and -283.5 kJ mol-1,
    respectively. The heat of formation (in kJ) of
    carbon monoxide per mole is
  • 676.5
  • -676.5
  • -110.5
  • 110 s
  • Answer
  • The species in which the N atom is in a state of
    sp hybridization is
  • NO -
  • 2
  • NO -
  • 3
  • NO2

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Chemistry JEE 2016
Exam Year 2016
Study, Assignments, Solved Previous Year Papers .
Questions and Answers. Free Forever.
Sc Rb Answer 6. Two closed bulbs of equal volume
(V) containing an ideal gas initially at pressure
pi and temperature T1 are connected through a
narrow tube of negligible volume as shown in the
?gure below. The temperature of one of the bulbs
is then raised to T2. The ?nal pressure pf is
Answer 7. The hottest region of Bunsen ?ame shown
in the ?gure below is
region 2 region 3 region 4 region 1
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Chemistry JEE 2016
Exam Year 2016
Study, Assignments, Solved Previous Year Papers .
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  • Answer
  • The distillation technique most suited for
    separating glycerol from spent-lye in the soap
    industry is fractional distillation
  • steam distillation
  • distillation under reduced pressure simple
    distillation
  • Answer
  • At 300 K and 1 atm, 15 mL of a gaseous
    hydrocarbon requires 375 mL air containing 20 O2
    by volume for complete combustion. After
    combustion the gases occupy 330 mL. Assuming that
    the water formed is in liquid form and the
    volumes were measured at the same temperature and
    pressure, the formula of the hydrocarbon is
  • C3H8 C4H8
  • C4H12
  • C3H6
  • Answer
  • Which one of the following statements about water
    is false? Water can act both as an acid and as a
    base.
  • There is extensive intramolecular hydrogen
    bonding in the condensed phase. Ice formed by
    heavy water sinks in normal water.
  • Water is oxidized to oxygen during
    photosynthesis.
  • Answer
  • The concentration of ?uoride, lead, nitrate and
    iron in a water sample from an underground lake
    was found to be 1000 ppb, 40 ppb, 100 ppm and
    0.2 ppm, respectively. This water is unsuitable
    for drinking due to the high concentration of
  • Lead Nitrate Iron Fluoride
  • Answer
  • The main oxides formed on combustion of Li, Na
    and K in excess of air are, respectively LiO2,
    Na2O2 and K2O
  • LiO2, Na2O2 and KO2 LiO, Na2O2 and KO2

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Chemistry JEE 2016
Exam Year 2016
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  • LiO, Na2O and KO2
  • Answer
  • Which of the following compounds is metallic and
    ferromagnetic? VO2
  • MnO2 TiO2 CrO2
  • Answer
  • For a linear plot of log (x/m) versus log p in a
    Freundlich adsorption isotherm, which of the
    following statements is correct? (k and n are
    constants)
  • 1/n appears as the intercept. Only 1/n appears
    as the slope.
  • log (1/n) appears as the intercept.
  • Both k and 1/n appear in the slope term Answer
  • 18 g glucose (C6H12O6 ) is added to 178.2 g
    water. The vapor pressure of water (in torr) for
    this aqueous solution is
  • 76.0
  • 752.4
  • 759.0
  • 7.6
  • Answer
  • Decomposition of H2O2 follows a ?rst order
    reaction. In ?fty minutes the concentration of
    H2O2 decreases from 0.5 to 0.125 M in one such
    decomposition. When the concentration of H2O2
    reaches 0.05 M, the rate of formation of O2 will
    be
  • 6.9310-4 mol min-1
  • 2.66 L min-1 at STP 1.3410-2 mol min-1
    6.9310-2 mol min-1

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Chemistry JEE 2016
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  • 2 2
  • Cr(H2O)6 and Fe(H2O)6
  • Mn(H O) 2 and Cr(H O) 2 2 6 2 6
  • CoCl 2- and Fe(H O) 2 4 2 6
  • Cr(H O) 2 and CoCl 2- 2 6 4
  • Answer
  • Which one of the following ores is best
    concentrated by froth ?otation method? Siderite
  • Galena Malachite Magnetite
  • Answer
  • The pair in which phosphorous atoms have a formal
    oxidation state of 3 is Pyrophosphorous and
    hypophosphoric acids
  • Orthophosphorous and hypophosphoric acids
    Pyrophosphorous and pyrophosphoric acids
    Orthophosphorous and pyrophosphorous acids

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Chemistry JEE 2016
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Zn Pb Answer 23. 2-chloro-2-methylpentane on
reaction with sodium methoxide in methanol yields
  • Both a and c
  • Only c
  • Both a and b All of these
  • Answer
  • Which of the following statements about
    low-density polythene is false? It is a poor
    conductor of electricity
  • Its synthesis requires dioxygen or a peroxide
    initiator as a catalyst. It is used in the
    manufacture of buckets, dustbins etc.
  • Its synthesis requires high pressure.
  • Answer
  • Which of the following is an anionic detergent?
    Sodium lauryl sulphate
  • Cetyltrimethyl ammonium bromide Glyceryl oleate
  • Sodium stearate Answer
  • The absolute con?guration of

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Chemistry JEE 2016
Exam Year 2016
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  • is
  • (2S, 3R)
  • (2S, 3S)
  • (2R, 3R)
  • (2R, 3S)
  • Answer
  • Thiol group is present in Cystine
  • Cysteine Methionine Cytosine
  • Answer
  • In the Hofmann bromamide degradation reaction,
    the number of moles of NaOH and Br2 used per mole
    of amine produced are
  • Four moles of NaOH and two moles of Br2
  • Two moles of NaOH and two moles of Br2 Four
    moles of NaOH and one mole of Br2 One mole of
    NaOH and one mole of Br2
  • Answer
  • The reaction of propene with HOCl(Cl2H2O)
    proceeds through the intermediate
  • CH -CH-CH -Cl
  • 3 2

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Chemistry JEE 2016
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Answer
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