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NEET Practice Test - 14 - NEET MCQ


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30 Questions MCQ Test - NEET Practice Test - 14

NEET Practice Test - 14 for NEET 2024 is part of NEET preparation. The NEET Practice Test - 14 questions and answers have been prepared according to the NEET exam syllabus.The NEET Practice Test - 14 MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for NEET Practice Test - 14 below.
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NEET Practice Test - 14 - Question 1
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The dehydration of 2-methyl butanol with conc. H2SO4 gives :

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NEET Practice Test - 14 - Question 2
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In the reaction:

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The reaction involves the conversion of one NO2 to NH2 group (reduction) which occurs in presence of NH4HS.
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NEET Practice Test - 14 - Question 3
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For how many orbitals, the quantum numbers n = 3, l = 2, m = +2 are possible?

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m = +2 signifies only one orbital.
NEET Practice Test - 14 - Question 4
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Among the following organic acids, the acid present in rancid butter is:
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Butyric acid (butanoic acid) is found in milk, and butter and is a product of anaerobic fermentation. It has an unpleasant smell and acrid taste.
NEET Practice Test - 14 - Question 5
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Which of the following reagents is used for the separation of acetaldehyde from acetophenone?
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NEET Practice Test - 14 - Question 6
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The shape of IF6– is:
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The structure of IF6– is distorted octahedral This is due to presence of a “weak” lone pair.

NEET Practice Test - 14 - Question 7
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A first order reaction is half completed in 45 minutes. How long does it need for 99.9% of the reaction to be completed?
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NEET Practice Test - 14 - Question 8
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Which artificial sweetener contains chlorine?
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NEET Practice Test - 14 - Question 9
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The complex showing a spin-only magnetic moment of 2.82 B.M. is :
Detailed Solution for NEET Practice Test - 14 - Question 9
[NiCl4]2–, O.S. of Ni = +2

Ni(28) = 3d8 4s2

No. of unpaired electrons = 2

Magnetic moment, μ = 2.82 BM.

NEET Practice Test - 14 - Question 10
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Among the lanthanides, the one obtained by synthetic method is
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Pm is obtained by synthetic method.
NEET Practice Test - 14 - Question 11
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The equation that is incorrect is:
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NEET Practice Test - 14 - Question 12
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Excess nitrate in drinking water can cause
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Excessive concentration of nitrate in drinking water is harmful and can cause methemoglobinemia (blue baby syndrome).
NEET Practice Test - 14 - Question 13
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A compound is formed by substitution of two chlorine for two hydrogens in propane. The number of possible isomeric compounds is
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The compound is C3H6Cl2 and the number of possible isomeric compounds is 5.

NEET Practice Test - 14 - Question 14
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n-Butylbenzene on oxidation will give
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In this reaction, the alkyl chain is oxidized to carboxylic acid in presence of oxidants like KMnO4 or chromic acid irrespective of the number of carbon atoms in the chain.

So the n-butyl benzene is converted into benzoic acid.

NEET Practice Test - 14 - Question 15
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At what temperature does the rms velocity of SO2 be the same as that of O2 at 303K ?
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NEET Practice Test - 14 - Question 16
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Which of the following is not oxidized by O3?
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In KMnO4, manganese is already present in its highest possible oxidation state i.e. +7. So no further oxidation is possible for KMnO4.
NEET Practice Test - 14 - Question 17
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Which is not obtained when metal carbides react with H2O?
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Al4C3 + 12H2O → 4Al (OH)3 + 3CH4
NEET Practice Test - 14 - Question 18
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Each of the following solids show, the Frenkel defect except
Detailed Solution for NEET Practice Test - 14 - Question 18
In KCl, coordination number of cation and anion is 6 and 6 respectively. KCl is highly ionic so Schottky defect is common.

Note: Schottky defect is common in compounds having high coordination number while Frenkel defect is common in compounds with low coordination number.

NEET Practice Test - 14 - Question 19
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The mole fraction of the solute in one molal aqueous solution is:
Detailed Solution for NEET Practice Test - 14 - Question 19
One molal solution means one mole of solute is present in 1 kg (1000 g) solvent i.e., mole of solute = 1

Mole of solvent (H2O) = 1000g/18g = 1000/18

Mole fraction of solute =

= 0.018.

NEET Practice Test - 14 - Question 20
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Match the columns
NEET Practice Test - 14 - Question 21
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A process has ΔH = 200 J mol–1 and DS = 40 JK–1 mol–(1) Out of the values given below, choose the minimum temperature above which the process will be spontaneous:
Detailed Solution for NEET Practice Test - 14 - Question 21
ΔH = 200 J mol–1

ΔS = 40 JK–1 mol–1

For spontaneous reaction,

ΔG < 0

ΔH – TΔS < 0; ΔH < TΔS; ΔH/ΔS < T

5 < T

So, the minimum temperature is 5 K.

NEET Practice Test - 14 - Question 22
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Benzyl alcohol is obtained from benzaldehyde by:
Detailed Solution for NEET Practice Test - 14 - Question 22
Cannizzaro reaction is given by aldehydes having no a-hydrogen atom to form a mixture of alcohol and sodium salt of the acid.

It is a disproportionation reaction in which half of the aldehyde molecules are oxidized and the other half reduced in presence of NaOH.

2C6H5CHO

C6H5CH2OH + C6H5COONa

NEET Practice Test - 14 - Question 23
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In sodium fusion test of organic compounds, the nitrogen of the organic compound is converted into
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Sodium cyanide (Na + C + N → NaCN).
NEET Practice Test - 14 - Question 24
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The pair of species having identical shapes for molecules of both species is
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Both XeF2 and CO2 have a linear structure.

F — Xe — F, O = C = O

NEET Practice Test - 14 - Question 25
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Which complex of Co2+ will have the weakest crystal field splitting –
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Cl– is a weak field ligand.
NEET Practice Test - 14 - Question 26
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What is the percentage of lanthanide metal in mischmetal?
NEET Practice Test - 14 - Question 27
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Given the ionic conductance of ,and Na+ are 74, 50 and 73 cm2 ohm-1 eq–1, respectively. The equivalent conductance at infinite dilution of the salt

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Total charge = 2 Number of equivalent of ion = Charge on the ion/Total Charge

NEET Practice Test - 14 - Question 28
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Halogenation of alkanes is
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The reaction of a halogen with an alkane in the presence of ultraviolet (UV) light or heat leads to the formation of a haloalkane (alkyl halide).This is an oxidative process.
NEET Practice Test - 14 - Question 29
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Which of the following will have the fastest rate of reaction with Br2/FeBr3?
Detailed Solution for NEET Practice Test - 14 - Question 29
The reaction on the benzene ring with Br2/FeBr3 ​ is the electrophilic substitution reaction. So, the intermediate form is carbocation, hence, the group attached to the benzene ring will decide the rate of reaction. If the carbocation formed is stable by the activating group the reaction will be faster. As −OCH3 ​ is a more activating group than others, the rate of reaction will be faster.
NEET Practice Test - 14 - Question 30
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An ideal gas obeying kinetic theory of gasses can be liquefied if:
Detailed Solution for NEET Practice Test - 14 - Question 30
Ideal gas cannot be liquefied at any value of P and T since there are no intermolecular interactions between molecules.
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