JEE Main 2019 April Question Paper with Answer Key and Solutions

JEE Main 2019 Question Paper All Questions

Chemistry

The compound that inhibits the growth of tumors is:

a)	$trans-\left [ Pt\left ( Cl \right )_{2} \left ( NH_{3} \right )_{2} \right ]$	b)	$cis-\left [ Pd\left ( Cl \right )_{2} \left ( NH_{3} \right )_{2} \right ]$
c)	$cis-\left [ Pt\left ( Cl \right )_{2} \left ( NH_{3} \right )_{2} \right ]$	d)	$trans-\left [ Pd\left ( Cl \right )_{2} \left ( NH_{3} \right )_{2} \right ]$

Chemistry - Co-ordination Compounds Coordination compounds:

Marked right : 30.592105263157894% students | Marked incorrect : 9.539473684210527% students | Marked not attempted : 59.86842105263158% students

(Asked in: NEET - 1970)

Correct Option: c

View Solution

Polysubsititution is a major drawback in:

a)	Friedel Carft's alkylation	b)	Reimer Tiemann reaction
c)	Acetylation of aniline	d)	Friedel Carft's acylation

Chemistry - Hydrocarbons

Marked right : 20.176730486008836% students | Marked incorrect : 16.49484536082474% students | Marked not attempted : 63.32842415316642% students

(Asked in: NEET - 1970,) (Asked in: BITSAT - 1970)

Correct Option: a

View Solution

The percentage composition of carbon by 1 mole in methane is:

a)	75	b)	80
c)	25	d)	20

Chemistry - Some basic concepts in chemistry

Marked right : 8.580593424218124% students | Marked incorrect : 17.56214915797915% students | Marked not attempted : 73.85725741780273% students

(Asked in: NEET - 1970)

Correct Option: d

View Solution

The IUPAC symbol for the element with atomic number 119 would be:

a)	uue	b)	une
c)	unh	d)	uun

Chemistry - Classification of elements and periodicity in properties Classification of Elements and Periodic table

Marked right : 33.800000000000004% students | Marked incorrect : 25.2% students | Marked not attempted : 41.0% students

(Asked in: NEET - 1970)

Correct Option: a

For the solution of the gases, w,x,y and z in water at 298 K, the henry's law constants (K_H) are 0.5,2,35 and 40 kbar, respectively. The correct plot for the given data is

a)		b)
c)		d)

Chemistry - Solutions

Marked right : 16.551724137931036% students | Marked incorrect : 20.689655172413794% students | Marked not attempted : 62.758620689655174% students

(Asked in: NEET - 1970)

Correct Option: a

View Solution

0.27 g of a long chain fatty acid was dissolved in 100 cm³ of hexane. 10 mL of this solution was added dropwise to the surface of water in a round watch glass. Hexane evaporates and a monolayer is formed. The distance (in m) from edge to centre of the watch glass is 10 cm. What is the height of the monolayer?

[Density of fatty acid=0.9 g cm^-3 , $\pi=3$ ]

a)	10^-6	b)	10^-8
c)	0.01	d)	0.0001

Chemistry - Surface Chemistry

Marked right : 11.018237082066868% students | Marked incorrect : 11.702127659574469% students | Marked not attempted : 77.27963525835865% students

(Asked in: NEET - 1970)

Correct Option: a

View Solution

Among the following molecules/ions, $C_{2}^{2-}, N_{2}^{2-}, O_{2}^{2-},O_{2}$ which one is diamagnetic and has the shortest bond length?

a)	O₂	b)	$N_{2}^{2-}$
c)	$O_{2}^{2-}$	d)	$C_{2}^{2-}$

Chemistry - Chemical Bonding and Molecular Structure

Marked right : 24.93368700265252% students | Marked incorrect : 23.872679045092838% students | Marked not attempted : 51.19363395225464% students

(Asked in: NEET - 1970,) (Asked in: BITSAT - 1970)

Correct Option: d

View Solution

The major product obtained in the following reaction is:

a)		b)
c)		d)

Chemistry - Organic Compounds with Functional Groups Containing Oxygen and Nitrogen Organic Compounds containing Oxygen Aldehydes, Ketones and Carboxylic Acids

Marked right : 11.76470588235294% students | Marked incorrect : 23.093681917211327% students | Marked not attempted : 65.14161220043573% students

(Asked in: NEET - 1970,) (Asked in: BITSAT - 1970)

Correct Option: b

View Solution

For a reaction scheme if the rate of formation of B is set to be zero then the concentration of B is given by:

a)	$\left ( k_{1}-k_{2} \right )\left [A \right ]$	b)	$k_{1}k_{2} \left [A \right ]$
c)	$\left ( k_{1}+k_{2} \right )\left [A \right ]$	d)	$\left ( \frac{k_{1}}{k_{2}} \right )\left [A \right ]$

Chemistry - Chemical Kinetics and Surface Chemistry Chemical kinetics

Marked right : 24.85549132947977% students | Marked incorrect : 12.138728323699421% students | Marked not attempted : 63.005780346820806% students

(Asked in: BITSAT - 1970)

Correct Option: d

View Solution

The correct statement about $ICl_{5}$ and $ICl_{4}^{-}$ is:

a)	both are isostructural	b)	$ICI_{5}$ is trigonal bipyramidal and $ICI_{4}^{-}$ is tetrahedral
c)	$ICI_{5}$ is square bipyramidal and $ICI_{4}^{-}$ is tetrahedral	d)	$ICI_{5}$ is square pyramidal and $ICI_{4}^{-}$ is square planar.

Chemistry - Chemical Bonding and Molecular Structure

Marked right : 24.21875% students | Marked incorrect : 22.395833333333336% students | Marked not attempted : 53.385416666666664% students

(Asked in: NEET - 1970,) (Asked in: BITSAT - 1970)

Correct Option: d

View Solution

5 moles of an ideal gas at 100 K are allowed to undergo reversible compression till its temperature becomes 200 K. If $C_{V}=28JK^{-1}mol^{-1}$ , calculate $\Delta U$ and $\Delta pV$ for this process. (R=8.0 JK^-1mol^-1)

a)	$\Delta U=14 kJ; \Delta (pV)=18kJ$	b)	$\Delta U=14J; \Delta (pV)=0.8J$
c)	$\Delta U=14 kJ; \Delta (pV)=4kJ$	d)	$\Delta U=2.8 kJ; \Delta (pV)=0.8kJ$

Chemistry - Chemical Thermodynamics Thermodynamics

Marked right : 26.031746031746035% students | Marked incorrect : 7.301587301587302% students | Marked not attempted : 66.66666666666666% students

(Asked in: NEET - 1970)

Correct Option: c

View Solution

The structure of Nylon-6 is:

a)		b)
c)		d)

Chemistry - Polymers Polymers

Marked right : 12.16722057022914% students | Marked incorrect : 18.57267797796047% students | Marked not attempted : 69.26010145181039% students

(Asked in: NEET - 1970,) (Asked in: AP EAMCET - 1970)

Correct Option: c

View Solution

Which one of the following alkenes when treated with HCl yields majorly an anti Markovnikov product?

a)	$CH_{3}O-CH=CH_{2}$	b)	$Cl-CH=CH_{2}$
c)	$H_{2}N-CH=CH_{2}$	d)	$F_{3}C-CH=CH_{2}$

Chemistry - Principles of Organic Chemistry and Hydrocarbons Hydrocarbons Hydrocarbons

Marked right : 28.98832684824903% students | Marked incorrect : 18.28793774319066% students | Marked not attempted : 52.723735408560316% students

(Asked in: NEET - 1970,) (Asked in: BITSAT - 1970)

Correct Option: d

View Solution

The major product of the following reaction is

a)		b)
c)		d)

Chemistry - Organic Compounds with Functional Groups Containing Oxygen and Nitrogen Organic Compounds containing Oxygen Aldehydes, Ketones and Carboxylic Acids

Marked right : 14.417177914110429% students | Marked incorrect : 27.607361963190186% students | Marked not attempted : 57.97546012269939% students

(Asked in: NEET - 1970,) (Asked in: BITSAT - 1970)

Correct Option: a

View Solution

Consider the following compounds:

(i) C₆H₅COCl

The correct decreasing order of their reactivity towards hydrolysis is:

a)	(i) > (ii) > (iii) > (iv)	b)	(iv) > (ii) > (i) > (iii)
c)	(ii) > (iv) > (i) > (iii)	d)	(ii) > (iv) > (iii) > (i)

Chemistry - Organic Compounds with Functional Groups Containing Oxygen and Nitrogen Organic Compounds Containing Nitrogen Biomolecules Organic Compounds Containing Nitrogen

Marked right : 25.46875% students | Marked incorrect : 11.5625% students | Marked not attempted : 62.96874999999999% students

(Asked in: NEET - 1970,) (Asked in: BITSAT - 1970)

Correct Option: c

View Solution

Fructose and glucose can be distinguished by:

a)	Benedict's test	b)	Fehling's test
c)	Barfoed's test	d)	Seliwanoff's test

Chemistry - Biomolecules

Marked right : 30.0% students | Marked incorrect : 24.0625% students | Marked not attempted : 45.9375% students

Correct Option: d

View Solution

The Mond process is used for the

a)	purification of Ni	b)	extraction of Mo
c)	purification of Zr and Ti	d)	extraction of Zn

Chemistry - General Principle and process of Isolation of metals General Principles and processes of Isolation Elements

Marked right : 51.526032315978455% students | Marked incorrect : 8.258527827648116% students | Marked not attempted : 40.21543985637343% students

(Asked in: NEET - 1970)

Correct Option: a

View Solution

The covalent alkaline earth metal halide (X=Cl,Br,I) is:

a)	MgX₂	b)	CaX₂
c)	BeX₂	d)	SrX₂

Chemistry - Hydrogen and s-block Elements S - Block Elements (Alkali and Alkaline Earth Metals) s- Block Elements ( Alkali and Alkaline earth metals )

Marked right : 39.90384615384615% students | Marked incorrect : 11.298076923076923% students | Marked not attempted : 48.79807692307692% students

(Asked in: NEET - 1970,) (Asked in: BITSAT - 1970)

Correct Option: c

View Solution

The ion that has sp³d² hybridization for the central atom is:

a)	[ICl₄]^-	b)	[ICI₂]^-
c)	[IF₆]^-	d)	[BrF₂]^-

Chemistry - Chemical Bonding & Molecular Structure Chemical Bonding and Molecular Structure Chemical Bonding and molecular structure

Marked right : 30.51643192488263% students | Marked incorrect : 21.830985915492956% students | Marked not attempted : 47.652582159624416% students

(Asked in: NEET - 1970,) (Asked in: BITSAT - 1970)

Correct Option: a

View Solution

For the following reactions equilibrium constants are given:

$\mathrm{S(s)+O_{2}(g)\rightleftharpoons SO_{2}(g); K_{1}=10^{52}}$

$\mathrm{2S(s)+3O_{2}(g)\rightleftharpoons 2SO_{3}(g); K_{2}=10^{129}}$

The equilibrium constant for the reaction,

$\mathrm{2SO_{2}(g)+O_{2}(g)\rightleftharpoons 2SO_{3}(g)}$

a)	10¹⁵⁴	b)	10¹⁸¹
c)	10²⁵	d)	10⁷⁷

Chemistry - Equilibrium

Marked right : 24.137931034482758% students | Marked incorrect : 15.517241379310345% students | Marked not attempted : 60.3448275862069% students

(Asked in: NEET - 1970,) (Asked in: BITSAT - 1970)

Correct Option: c

View Solution

If P is the momentum of the fastest electron ejected from a metal surface after the irradiation of light having wavelength $\lambda$ , then for 1.5 p momentum of the photoelectron, the wavelength of the light should be:

(Assume kinetic energy of elected photoelectron to be very high in comparison to work function):

a)	$\frac{3}{4}\lambda$	b)	$\frac{1}{2}\lambda$
c)	$\frac{2}{3}\lambda$	d)	$\frac{4}{9}\lambda$

Chemistry - Atomic Structure Atomic Structure

Marked right : 16.083916083916083% students | Marked incorrect : 22.02797202797203% students | Marked not attempted : 61.88811188811189% students

(Asked in: BITSAT - 1970)

Correct Option: c

View Solution

The statement that is INCORRECT about the interstital compound is:

a)	They are chemically reactive	b)	they are very hard
c)	they have metallic conductivity	d)	they have high melting point

Chemistry - p- d- and f-block elements d - and f - BLOCK ELEMENTS d and f Block Elements

Marked right : 40.415335463258785% students | Marked incorrect : 19.64856230031949% students | Marked not attempted : 39.936102236421725% students

(Asked in: NEET - 1970,) (Asked in: BITSAT - 1970)

Correct Option: a

View Solution

Consider the bcc unit cells of the solids 1 and 2 with the position of atoms as shown below. The radius of atoms of B is twice that of atom A. The unit cell edge length is 50% more in solid 2 than in 1. What is the packing efficiency(in %) in solid 2?

(Response should be up to only one decimal digit like 78.7 or 50.0).

a)	45	b)	75
c)	91.2	d)	65

Chemistry - States of Matter States of matter Solid state

Marked right : 1.4634146341463417% students | Marked incorrect : 14.959349593495935% students | Marked not attempted : 83.57723577235772% students

(Asked in: NEET - 1970,) (Asked in: BITSAT - 1970)

Correct Option: c

View Solution

The calculated spin-only magnetic moments (BM) of the anionic and cationic part of complex $\left [ Fe \left ( H_{2}O \right )_{6} \right ]_{2}$ $\left [ Fe \left ( CN \right )_{6} \right ]$ , respectively are:

a)	0 and 4.9	b)	2.84 and 5.92
c)	4.9 and 0	d)	0 and 5.92

Chemistry - p- d- and f-block elements d - and f - BLOCK ELEMENTS d and f Block Elements

Marked right : 17.46031746031746% students | Marked incorrect : 29.725829725829726% students | Marked not attempted : 52.81385281385281% students

(Asked in: NEET - 1970,) (Asked in: BITSAT - 1970)

Correct Option: a

View Solution

The maximum prescribed concentration of copper in drinking water is:

a)	5 ppm	b)	0.05 ppm
c)	0.5 ppm	d)	3 ppm

Chemistry - Biological , Industrial and Environmental chemistry Environmental Chemistry Environmental Chemistry

Marked right : 12.966553562772662% students | Marked incorrect : 11.924381968007754% students | Marked not attempted : 75.10906446921959% students

(Asked in: NEET - 1970,) (Asked in: BITSAT - 1970)

Correct Option: d

View Solution

Which of the following compounds will show the maximum 'enol' content?

a)	$CH_{3}COCH_{2}COOC_{2}H_{5}$	b)	$CH_{3}COCH_{2}COCH_{3}$
c)	$CH_{3}COCH_{3}$	d)	$CH_{3}COCH_{2}CONH_{2}$

Exams

Colleges

Predictors

Resources

Quick links

Exams

Colleges

Resources

Colleges

Resources

Exams

Exams

Colleges

Predictor

Resources

Exams

Predictors

Resources

Upcoming Events

Exams

Ranking

Products & Resources

NCERT Solutions

Exams

Resources

Exams

Colleges

Predictors

Resources

Exams

Colleges

Predictors

Resources

Online Courses

Products

Engineering Preparation

Medical Preparation

Exams

Colleges

Predictors

Resources

Resources

Exams

Colleges

Predictors

Exams

Predictors

Colleges

Resources

Exams

Colleges

Resources

Exams

Resources

8th April Slot 2

Analysis of JEE Main Paper 2019

JEE Main 2019 Question Paper All Questions