datavorous/entrance-exam-dataset huggingface dataset:
Complete the following reaction: C6H5N2Cl + C2H5OH →

Options:
A Benzene + Ethanal + N2+ HCl
B Ethanal + N2+ HCl
C Benzene + N2+ HCl
D Benzene + Ethanoic acid + N2+ HCl

The correct answer is:
Benzene + Ethanal + N2+ HCl

Solution:
Correct Option is : (A)
Benzene + Ethanal + N2+ HCl

Topic: Chemistry, Amines, NEET
Complete the following reaction: C6H5N2Cl + H3PO2+ H2O →

Options:
A C6H5+ H3PO3
B C6H5+ N2+ HCl
C C6H5+ N2+ H3PO3+ HCl
D C6H5+ N2+ HNO2+ HCl

The correct answer is:
C6H5+ N2+ H3PO3+ HCl

Solution:
Correct Option is : (C)
C6H5+ N2+ H3PO3+ HCl

Topic: Chemistry, Amines, NEET
Complete the following reaction: C6H5NH2+ Br2(aq) →

Options:
A 2,4,4-Tribromoaniline + HNO3
B 2,4,6-Tribromoaniline + HNO2
C Bromoaniline + HNO2
D 2,4,6-Tribromoaniline + 3HBr

The correct answer is:
2,4,6-Tribromoaniline + 3HBr

Solution:
Correct Option is : (D)
2,4,6-Tribromoaniline + 3HBr

Topic: Chemistry, Amines, NEET
Complete the following reaction: C6H5NH2+ (CH3CO)2O →

Options:
A Acetophenone + CH3COOH
B Acetanilide + CH3COONH2
C Acetanilide + CH3COOH
D Acetanilide + CH4+ NH3

The correct answer is:
Acetanilide + CH3COOH

Solution:
Correct Option is : (C)
Acetanilide + CH3COOH

Topic: Chemistry, Amines, NEET
Complete the following reaction: C6H5NH2+ CHCL3+ alc.KOH →

Options:
A C6H5NC + H2O
B C6H5NC
C C6H5NH2+ KCl + H2O
D C6H5NC + 3KCl + 3H2O

The correct answer is:
C6H5NC + 3KCl + 3H2O

Solution:
Correct Option is : (D)
C6H5NC + 3KCl + 3H2O

Topic: Chemistry, Amines, NEET
Complete the following reaction: C6H5NH2+ H2SO4(conc) →

Options:
A Sulfurous acid
B Sulphanilic acid
C Peroxodisulfuric acid
D Pyrosulphuric Acid

The correct answer is:
Sulphanilic acid

Solution:
Correct Option is : (B)
Sulphanilic acid

Topic: Chemistry, Amines, NEET
Complete the following reaction RCOOHâ P2O5 â?

Options:
A Acid anhydride
B Ketone
C Aldehyde
D Ester

The correct answer is:
Acid anhydride

Solution:
P2O5 is dehydrating agent, hence acid gives anhydrides on dehydration by P2O5.
2RCOOHâ P2O5 -H2ORCO2O

Topic: Chemistry, Carboxylic Acid Derivatives, NEET
Complete the following reaction sequence:

Options:
A A= 2-methylpropan-2-ol, B= Sodium tert butoxide and C=2-methoxy-2-methylpropane
B A= 2-methylpropan-1-ol, B= Sodium tert butoxide and C=2-methoxy-2-methylpropane
C A= 2-methylpropan-2-ol, B= Sodium secbutane and C=2-methoxy-2-methylpropane
D A= 2-methylpropan-2-ol, B= Sodium tert butoxide and C=1-methoxy-2-methylpropane

The correct answer is:
A= 2-methylpropan-2-ol, B= Sodium tert butoxide and C=2-methoxy-2-methylpropane

Solution:
Correct Option is : (A)
A= 2-methylpropan-2-ol, B= Sodium tert butoxide and C=2-methoxy-2-methylpropane

Topic: Chemistry, Aldehydes and Ketones, NEET
Complete the following reaction:

Options:
A 2,2-Dinitrobenzene
B Nitrobenzene + NaBF4+ N2
C Nitrobenzene
D Nitrobenzene + NaCl

The correct answer is:
Nitrobenzene + NaBF4+ N2

Solution:
Correct Option is : (B)
Nitrobenzene + NaBF4+ N2

Topic: Chemistry, Amines, NEET
Complete the following reactions C2H4+ O2→

Options:
A CO2+ H2O
B CO + H2O
C CO2+ 2H2O
D CO + 2H2O

The correct answer is:
CO2+ H2O

Solution:
Correct Option is : (A)
CO2+ H2O

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
Complete the following reactions,

(i) H2g+MnOsââMns+H2Og

(ii) CO g + H 2 g â Catalyst Î

(iii) C 3 H 8 g + 3 H 2 O g â Catalyst Î

(iv) Zn s + NaOH aq â Heat

After completing the above reactions in the balanced equations the coefficient for H2(g) may be

Options:
A 1, 2, 7, 1
B 1, 2, 4, 2
C 1, 2, 1, 1
D 1, 3, 4, 2

The correct answer is:
1, 2, 7, 1

Solution:
(i) H2g+MnOs→∆Mns+H2Og
(ii) CO g + 2H 2 g → Catalyst Δ CH 3 OH l Methanol
(iii) C 3 H 8 g + 3 H 2 O g → Ni, 1270 K 3 CO g + 7 H 2 g
Zn s + 2NaOH aq → Heat Na 2 ZnO 2 aq Sod.zincate + H 2 g

Topic: Chemistry, s Block Elements, NEET
Complete the following sentence by filling in the blanks A and B.

........A........ produced by a yeast ........B........ is used as a blood cholesterol-lowering agent.

Options:
A A-Cyclosporin, B-Monascus purpureus
B A-Statins, B-Monascus purpureus
C A-Statins, B-Trichoderma polysporum
D A-Cyclosporin, B-Trichoderma polysporum

The correct answer is:
A-Statins, B-Monascus purpureus

Solution:
Statins are produced by the yeast known as Monascus purpureus. They are commercially used as blood cholesterol-lowering agents.

Topic: Biology, Microbes in Human Welfare, NEET
Complete the following sentence using the appropriate option.

X is the term popularized by Y , a Z ,to describe combined diversity at all the levels of biological organization.

Options:
A X - Ecosystem ; Y - Alexander von Humboldt ; Z -Geologist
B X - Biodiversity ; Y - Edward Wilson ; Z -Sociobiologist
C X - Ecosystem ; Y - Robert May ; Z -Environmentalist
D X - Ecology ; Y - Gause ; Z -Ecologist

The correct answer is:
X - Biodiversity ; Y - Edward Wilson ; Z -Sociobiologist

Solution:
Sociobiologist Edward Wilson was the one who gave term biodiversity to describe diversity at all the levels of biological organization. The important ones are: genetic diversity, species diversity and ecological diversity. Alexander von Humboldt was a geographer to give relation between species richness and the area to be rectangular hyperbola.

Topic: Biology, Biodiversity and its Conservation, NEET
Complete the following synthesis by giving missing starting material, reagent or products:

Options:
A Cyclohexylidene cyclohexane
B Cyclohexylidene
C Cyclohexane
D None of the above

The correct answer is:
Cyclohexylidene cyclohexane

Solution:
Correct Option is : (A)
Cyclohexylidene cyclohexane

Topic: Chemistry, Aldehydes and Ketones, NEET
Complete the following synthesis by giving missing starting material, reagent or products:

Options:
A 4-oxo-cyclohexane carboxylate anion
B 3-oxo-cyclohexane carboxylic acid
C Carboxylic acid
D Cyclohexyl anion

The correct answer is:
4-oxo-cyclohexane carboxylate anion

Solution:
Correct Option is : (A)
4-oxo-cyclohexane carboxylate anion

Topic: Chemistry, Aldehydes and Ketones, NEET
Complete the following synthesis by giving missing starting material, reagent or products:

Options:
A Ethyl-2-hydroxy butanoate
B Methyl-3-hydroxy butanoate
C Ethyl-3-hydroxy propanoate
D Ethyl-3-hydroxy butanoate

The correct answer is:
Ethyl-3-hydroxy butanoate

Solution:
Correct Option is : (D)
Ethyl-3-hydroxy butanoate

Topic: Chemistry, Aldehydes and Ketones, NEET
Complete the following synthesis by giving missing starting material, reagent or products:

Options:
A 2-methyl-3-phenyl-propenol
B 2-methyl-3-phenyl-prop-2-en-1-al
C 2-methyl-2-phenyl-prop-2-en-1-al
D Methyl-phenyl-propenal

The correct answer is:
2-methyl-3-phenyl-prop-2-en-1-al

Solution:
Correct Option is : (B)
2-methyl-3-phenyl-prop-2-en-1-al

Topic: Chemistry, Aldehydes and Ketones, NEET
Complete the following synthesis by giving missing starting material, reagent or products:

Options:
A Benzaldehyde Semicarbazone
B Benzaldehyde
C Benzoic acid
D Semicarbazone

The correct answer is:
Benzaldehyde Semicarbazone

Solution:
Correct Option is : (A)
Benzaldehyde Semicarbazone

Topic: Chemistry, Aldehydes and Ketones, NEET
Complete the following synthesis by giving missing starting material, reagent or products:

Options:
A H2O2/NaOH
B B2H6/THF
C B2H6/THF followed by H2O2/NaOH followed by PCC
D PCC

The correct answer is:
B2H6/THF followed by H2O2/NaOH followed by PCC

Solution:
Correct Option is : (C)
B2H6/THF followed by H2O2/NaOH followed by PCC

Topic: Chemistry, Aldehydes and Ketones, NEET
Complete the following synthesis by giving missing starting material, reagent or products:

Options:
A Br2/ water
B KMnO4
C C6H5COCl-AlCl3
D C2H5OH

The correct answer is:
C6H5COCl-AlCl3

Solution:
Correct Option is : (C)
C6H5COCl-AlCl3

Topic: Chemistry, Aldehydes and Ketones, NEET
Complete the following synthesis by giving missing starting material, reagent or products:

Options:
A Phthaloyl dibromide
B Phthaloyl dichloride
C Phthalic acid
D Benzene

The correct answer is:
Phthaloyl dichloride

Solution:
Correct Option is : (B)
Phthaloyl dichloride

Topic: Chemistry, Aldehydes and Ketones, NEET
Complete the following synthesis by giving missing starting material, reagent or products:

Options:
A Cyclopentanone
B Cyclohexanone
C Cycloheptanone
D Cyclohexane

The correct answer is:
Cyclohexanone

Solution:
Correct Option is : (B)
Cyclohexanone

Topic: Chemistry, Aldehydes and Ketones, NEET
Complete the following synthesis by giving missing starting material, reagent or products:

Options:
A Potassium cyclohexane
B Benzene
C Benzoic acid
D Potassium benzoate

The correct answer is:
Potassium benzoate

Solution:
Correct Option is : (D)
Potassium benzoate

Topic: Chemistry, Aldehydes and Ketones, NEET
Complete the following

Options:
A OHC-CH2-CH2-CH2-CH2-CHO
B OHC-CHD-CH2-CH2-CH2-CHO
C OHC-CH2-CHD-CH2-CH2-CHO
D OHC-CH2-CH2-CD2-CH2-CHO

The correct answer is:
OHC-CHD-CH2-CH2-CH2-CHO

Solution:
Here reaction sequence is as follows

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
Complete the given equations
i Mg+2 HNO 3 dil →Mg ( NO 3 ) 2 +P
ii Cu+8 HNO 3 dil →3Cu ( NO 3 ) 2 +Q+4 H 2 O
iii I 2 +10 HNO 3 dil →R+10 NO 2 +4 H 2 O

Options:
A NO(P);  2NO 2 (Q);  5HIO 3 (R)
B H 2 (P);â2NO(Q);â 2HIO 3 (R)
C N2(P) N2(Q) HI(R)
D NO2(P) N2O(Q) 3HI (R)

The correct answer is:
H 2 (P); 2NO(Q);  2HIO 3 (R)

Solution:
(i)âMgâ+â 2HNO 3 very dilute (5%)â Mg(NO 3 ) 2 â+â H 2 P
(ii) Cu + 8HNO 3 dil → 3Cu(NO 3 ) 2 + 2NO Q +4H 2 O
(iii)â I 2 +10HNO 3 dil â 2HIO 3 R +10NO 2 +4H 2 O

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Complete the given flow chart about DNA compaction and packaging by selecting the correct option.

DNA→X→Y→Chromatin fiber→Z→Chromosome

Options:
A

X	Y	Z
Solenoid	Nucleosome	Chromatid

B

X	Y	Z
Solenoid	Chromatid	Nucleosome

C

X	Y	Z

Nucleosome	Solenoid	Chromatid

D

X	Y	Z
Nucleosome	Chromatid	Solenoid

The correct answer is:

X	Y	Z

Nucleosome	Solenoid	Chromatid

Solution:
DNA is the nucleic acid that forms the genetic material in all organisms. The structure of deoxyribose nucleic acid was elucidated by Watson and Crick. The DNA is a double helical structure having two anti-parallel strands of polynucleotide chains joined to each other by hydrogen bonding formed between the N-bases. The typical DNA length is approximately 2.2 m and the nuclei size is approximately 10-6 m . To accommodate such a large molecule in such a tiny space, DNA undergoes a series of folding and packaging process.
DNA is wrapped with histone proteins to form beads like a structure called nucleosomes. This structure is further condensed to fit in a coiled helical structure called a solenoid. Further super folding of solenoid results in chromatin fiber formation and later into a chromatid visible during the prophase of cell division. At the metaphase of cell division, chromosome structure forms with chromatids joined at the centre by centromere.

Topic: Biology, Molecular Basis of Inheritance, NEET
Complete the given table showing different possibilities of genotypes and their corresponding blood group, by selecting the CORRECT option.

Options:
A

(i)	(ii)	(iii)	(iv)
IAIA	IBIB	IAIB	ii

B

(i)	(ii)	(iii)	(iv)
IAIA	IBIB	IAIB	IAI

C

(i)	(ii)	(iii)	(iv)
IAi	IBi	IAIB	ii

D

(i)	(ii)	(iii)	(iv)
IAi	IBi	IAIB	IBi

The correct answer is:

(i)	(ii)	(iii)	(iv)
IAi	IBi	IAIB	ii

Solution:
ABO blood group in humans is controlled by gene I and shows co-dominance. The gene I has three alleles IA, IB and i. IA and IB produce slightly different form of sugar, while allele i does not produce any sugar. IA and IB are completely dominant over allele i. But if IA and IB are present together, they both express their own types of sugars.

Topic: Biology, Principles of Inheritance and Variation, NEET
Complete the sentence. Presence of ______ in the soil helps in polishing, filtration of oils and syrups.

Options:
A cellulosic plates on surfaces of dinoflagellates
B cell wall of chrysophytes
C cell body of desmids
D extremely resistant spores of slime moulds

The correct answer is:
cell wall of chrysophytes

Solution:
Chrysophytes include the diatoms and golden algae. Their cell wall deposition in the soil makes the soil gritty, known as diatomaceous earth. This soil is used polishing and filtration of oils and syrups.

Topic: Biology, Biological Classification, NEET
Complex Coen2Cl2Cl has ........ number of possible isomers. (en = ethylenediamine)

Options:
A 2
B 1
C 3
D 4

The correct answer is:
3

Solution:
Coen2Cl2Cl
Possible isomers
(i) Geometrical isomers
(ii) In trans form plane of symmetry present, so trans form is optically inactive but cis is optically active.
Total number of stereoisomer = 2 + 1 = 3

Topic: Chemistry, Coordination Compounds, NEET, NEET 2015 (Phase 2)
Components of the areolar connective tissue include all of the following, except

Options:
A chondrocytes
B collagen
C macrophages
D semi-fluid matrix

The correct answer is:
chondrocytes

Solution:
Loose connective tissue has cells and fibres loosely arranged in a semi-fluid ground substance, for example, areolar tissue present beneath the skin. Often it serves as a support framework for epithelium. It contains fibroblasts (cells that produce and secrete fibres), macrophages and mast cells. Collagen or elastin fibres along with a semi-fluid ground substance called the matrix is found all connective tissues.
Chondrocytes or cartilage cells comprise the intercellular material of cartilage, which is solid and pliable and resists compression. These cells are enclosed in small cavities within the matrix secreted by them.

Topic: Biology, Structural Organisation in Animals, NEET
Composite fruit is developed from:

Options:
A Single ovary
B Inflorescence
C Single apocarpous ovary
D Pericarp

The correct answer is:
Inflorescence

Solution:
When a fruit develops from entire inflorescence it is called composite or multiple fruit. Syconous and sorosis are two important composite fruit.

Topic: Biology, Morphology of Flowering Plants, NEET
Composition of semen is

Options:
A Sperms
B Secretions of the seminal vesicles
C Secretions of prostate gland and bulbo-urethral glands
D All the above

The correct answer is:
All the above

Solution:
Semen is a milky viscous and alkaline fluid. The quantity is 2.5 to 4.0 ml at one time having some 200-300 million sperms. The fluid part is secreted by seminal vesicles, the prostate gland, and Cowper's glands.

Topic: Biology, Human Reproduction, NEET
Compound A( C 7 H 8 O ) is insoluble in water, dilute HCl & aqueous NaHCO 3 but it dissolves in dilute NaOH when A is heated with Br 2 water, it is converted into a compound C 7 H 5 OBr 3 rapidly. The structure of A is:

Options:
A
B
C
D

The correct answer is:

Solution:

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
Compound A is -

Options:
A
B
C
D

The correct answer is:

Solution:
It is intermolecular esterification reaction.

Topic: Chemistry, Carboxylic Acid Derivatives, NEET
Compound A on oxidation with hot KMnO4/O-H gives two compound
CH3-CH-|CH3COOH and CH3-C||O-CH2-CH2-CH3. compound A will have the structure

Options:
A
B
C
D

The correct answer is:

Solution:
Here compound A is 2,4-dimethyl-hept-3-ene and the reaction is as follows

Topic: Chemistry, Hydrocarbons, NEET
Compound A on oxidation with OsO4/NaHSO3 followed by reaction with HIO4 gives hexane-1, 6-di al. The structure of compound A can be given as

Options:
A
B
C
D

The correct answer is:

Solution:
Here Compound A is Cyclohexene and the reaction is as follows

Topic: Chemistry, Hydrocarbons, NEET
Compound A undergoes formation of cyano- hydrin which on hydrolysis gives lactic acid (CH3CH(OH)COOH) . Therefore, compound A is

Options:
A Acetaldehyde
B Acetone
C Benzaldehyde
D Formaldehyde

The correct answer is:
Acetaldehyde

Solution:
Acetaldehyde on reaction with HCN forms acetaldehyde cyanohydrin which upon acid catalysed hydrolysis forms an Î± - hydroxyl acid i.e. lactic acid.

Topic: Chemistry, Aldehydes and Ketones, NEET
Compound ‘A’ was prepared by oxidation of compound ‘B’ with alkaline KMnO4. Compound ‘A’ on reduction with lithium aluminium hydride gets converted back to compound ‘B’. When compound ‘A’ is heated with compound B in the presence of H2SO4it produces the fruity smell of compound C to which family the compounds ‘A’, ‘B’ and ‘C’ belong to?

Options:
A ‘A’ is a carboxylic acid, ‘B’ is an ester and ‘C’ is an alcohol.
B ‘A’ is an ether, ‘B’ is an alcohol and ‘C’ is an ester.
C ‘A’ is a carboxylic acid, ‘B’ is an alcohol and ‘C’ is an ester.
D ‘A’ is a carboxylic acid, ‘B’ is an alcohol and ‘C’ is an ether.

The correct answer is:
‘A’ is a carboxylic acid, ‘B’ is an alcohol and ‘C’ is an ester.

Solution:
Correct Option is : (C)
‘A’ is a carboxylic acid, ‘B’ is an alcohol and ‘C’ is an ester.

Topic: Chemistry, Aldehydes and Ketones, NEET
Compound ‘A’ with molecular formula C4H9Br is treated with aq. KOH solution. The rate of this reaction depends upon the concentration of the compound ‘A’ only. When another optically active isomer ‘B’ of this compound was treated with aq. KOH solution, the rate of reaction was found to be dependent on concentration of compound and KOH both. Out of these two compounds, which one will be converted to the product with inverted configuration?

Options:
A Both Compound ‘A’ and ’B’ will be converted to the product with inverted configuration
B Neither Compound ‘A’ nor ‘B’ will be converted to the product with inverted configuration
C Compound ‘A’ will be converted to the product with inverted configuration
D Compound ‘B’ will be converted to the product with inverted configuration

The correct answer is:
Compound ‘B’ will be converted to the product with inverted configuration

Solution:
Correct Option is : (D)
Compound ‘B’ will be converted to the product with inverted configuration

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
Compound A(C 9 H 10 O) shows positive iodoform test. Oxidation of A with KMnO 4 /KOH gives acid B(C 8 H 6 O 4 ) . Anhydride of B is used for the preparation of phenophthalein. Compound A is:

Options:
A
B
C
D

The correct answer is:

Solution:
A C 9 H 10 O shows iodoform test → KMnO 4 /KOH B C 8 H 6 O 4 Acid
Note : Anhydride of B is used in preparation of phenolphthalein.
⇒ B must be phthalic acid as phthalic anhydride is used in preparation of phenolphthalein.
⇒ Option 3 is wrong because it doesn't give iodoform test

Topic: Chemistry, Aldehydes and Ketones, NEET
Compound CH2=C=CH2contains sp or sp2hybridised carbon atoms. Will it be a planar molecule?

Options:
A No. It is not a planar molecule.
B Yes. It is a planar molecule.
C It can be either planar or non-planar depending on the arrangement of atoms in the molecule.
D None of the above

The correct answer is:
No. It is not a planar molecule.

Solution:
Correct Option is : (A)
No. It is not a planar molecule.

Topic: Chemistry, General Organic Chemistry, NEET
Compound FeNO23Cl3 and FeONO 3Cl3 shows which kind of isomerism in the following

Options:
A Linkage isomerism
B Geometrical isomerism
C Optical isomerism
D Hydrate isomerism

The correct answer is:
Linkage isomerism

Solution:
∵ In the given complexes, central metal element Fe is attached through N and O respectively.
Thus, these are linkage isomers.
∴ Linkage isomerism is the correct option.

Topic: Chemistry, Coordination Compounds, NEET
Compound formed when noble gases get entrapped in the cavities of crystal lattice of certain organic and inorganic compounds are called

Options:
A interstitial compounds
B hydrates
C clathrates
D picrates

The correct answer is:
clathrates

Solution:
Normal chemical compounds have ionic or covalent bonds. However, in the clathrates, atoms or molecules of the appropriate size such as Ar, Kr and Xe may be trapped in cavities in the crystal lattice of other compounds such as frozen water of frozen aq. solution of quinol (1,4-dihydroxy benzene). Though the noble gases are trapped, yet they do not form bonds.
He and Ne do not form clathrate compounds, because these atoms are small enough to escape from the cavities.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Compound (P) forms a precipitate with AgNO3. The precipitate dissolves in excess reagent (P). (P) cannot be :

Options:
A KOH
B KCN
C Na2S2O3
D NH3

The correct answer is:
KOH

Solution:
=(1)2AgNO3+2KOH⟶Ag2O↓( black )+2KNO3+H2O

↓excess KOH

No reaction

(2) AgNO3 ⟶CN- AgCN ↓ (white) CN-excess Ag(CN)2-

(Soluable)

(3) AgNO3 ⟶S2O32-Ag2S2O3↓ (white) S2O32- excess

AgS2O323- (Soluable)

(4) AgNO3⟶NH3Ag2O↓ (black) NH3 excess AgNH32+

(Soluable)

Hence (2), (3) &(4) are not the answers

Topic: Chemistry, d and f Block Elements, NEET
Compound which on heating produces paramagnetic acidic gas?

Options:
A Mg(NO3)2
B Fe2(SO4)3
C FeCO3
D HgC2O4

The correct answer is:
Mg(NO3)2

Solution:
NO2 is acidic and paramagnetic also

Topic: Chemistry, s Block Elements, NEET
Compound (X) having molecular formula C6H10Cl2 on hydrolysis gives a ketone. Therefore (X) will be

Options:
A
B
C
D

The correct answer is:

Solution:
As the product is a ketone so it is a non-terminal geminaldihalide and the reaction occurs as follows

Topic: Chemistry, Aldehydes and Ketones, NEET
Compound X is highly volatile and insoluble in water. Bonding in X is

Options:
A Ionic
B Covalent
C Polar covalent
D Coordinate

The correct answer is:
Covalent

Solution:
Generally, covalent compounds are volatile and insoluble water.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Compound (X) of molecular formula C4H8 takes up one equivalent of hydrogen in presence of Pt to form another compound (Y), (X) on ozonoysis gives acetaldehyde as the only product. Comound (X) is

Options:
A CH3-CH2-CH=CH2
B CH3-CH=CH-CH3
C Cyclobutane
D Cyclobutene

The correct answer is:
CH3-CH=CH-CH3

Solution:
Here the compound X is but-2-ene and the reaction is as follows
(x) → (ii) Zn/ H 2 O (i) O 3 CH 3 −CHO
Hence (X) is

Topic: Chemistry, Aldehydes and Ketones, NEET
Compound X on reaction with O3 followed by Zn/H2O gives formaldehyde and 2-methyl propanal as products. The compound X is:

Options:
A 2-Methylbut-1-ene
B 2-Methylbut-2-ene
C Pent-2-ene
D 3-Methylbut-1-ene

The correct answer is:
3-Methylbut-1-ene

Solution:
Reductive Ozonolysis of alkenes gives aldehydes and ketones.

3-Methylbut-1-ene on ozonolysis gives2-methyl propanal and methanal on reductive ozonolysis.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET, NEET 2022 (Phase 1)
Compounds (A) and (B) are –

Options:
A NaClO3,NaClO
B NaClO2,NaOCl
C NaClO4,NaClO3
D NaOCl,NaClO3

The correct answer is:
NaOCl,NaClO3

Solution:
Cl2+NaOH→Cold&dilNaCl+NaOCl
Cl2+NaOH→Hot&Conc.NaCl+NaOCl3

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Compounds with same molecular formula but differing in their structures are said to be structural isomers. What type of structural isomerism is shown by-

Options:
A Functional Isomerism
B Optical isomerism
C Metamerism
D Chain isomerism

The correct answer is:
Metamerism

Solution:
Correct Option is : (C)
Metamerism

Topic: Chemistry, General Organic Chemistry, NEET
Compressibility factor (Z) is plotted against pressure at different temperature for same gas

Which of the following is the correct order of temperature shown in the above plot?

Options:
A T4>T3>T2>T1
B T1>T2>T3>T4
C T1>T2>T4>T3
D T3>T4>T2>T1

The correct answer is:
T1>T2>T3>T4

Solution:
Any real gas can show ideal gas behaviour at high temperature which means more close to ideal gas behaviour more is temperature.
Here the correct order of temperature is T1>T2>T3>T4 .
Hint; Real gas approaches ideal behaviour with increase in temperature.

Topic: Chemistry, States of Matter, NEET
Compressibility factor Z=PVnRT is plotted against pressure

What is the correct order of liquefiability of the gases shown in the above graph?

Options:
A H2<N2<CH4<CO2
B CO2<CH4<N2<H2
C H2<CH4<N2<CO2
D CH4<H2<N2<CO2

The correct answer is:
H2<N2<CH4<CO2

Solution:
Lesser is the value of Z at a pressure, easy will be the liquefaction of the gas. Z < 1 shows the dominance of attractive forces.
The order of liquefication as follows
H2<N2<CH4<CO2

Topic: Chemistry, States of Matter, NEET