datavorous/entrance-exam-dataset huggingface dataset:
Which of the following is not an example of chain growth polymerisation?

Options:
A Polythene
B Urea-formaldehyde resin
C Polypropene
D PVC

The correct answer is:
Urea-formaldehyde resin

Solution:
Correct Option is : 2
Urea-formaldehyde resin

Topic: Chemistry, Polymers, NEET
Which of the following is not an example of commensalism?

Options:
A Orchid on mango branch
B Cuckoo and crow
C Egret and grazing cattle
D Sea anemone and clown fish

The correct answer is:
Cuckoo and crow

Solution:
Commensalism is the interaction in which one species benefits and the other is neither harmed nor benefited. An Orchid growing as an epiphyte on a mango branch, in which mango tree is not effected but orchid gets support. Cattle egret and grazing cattle and sea Anemone and clown fish are example of commensalism. Cuckoo and crow shows brood parasitism.

Topic: Biology, Organisms and Populations, NEET
Which of the following is not an example of covalent solids?

Options:
A SiO2
B SiC
C SO2
D AlN

The correct answer is:
SO2

Solution:
Correct Option is : 3
SO2

Topic: Chemistry, Solid State, NEET
Which of the following is not an example of ex-situ conservation?

Options:
A Seed bank
B Zoo
C Sanctuaries
D Botanical Gardens

The correct answer is:
Sanctuaries

Solution:
Ex-situ conservation is off-site conservation in which the animals are conserved in a protected environment under special care. It is conservation of selected rare plants/animals in places outside their natural homes. Ex-situ conservation includes offsite botanical gardens, zoo, seed banks, tissue culture and gene banks.

Topic: Biology, Biodiversity and its Conservation, NEET
Which of the following is not an example of imperfect fungi?

Options:
A Alternaria
B Claviceps
C Trichoderma
D Colletotrichum

The correct answer is:
Claviceps

Solution:
Claviceps is a member of asomycetes fungi, which causes ergot diseases. Alternaria, Trichoderma and Colletotrichum are members of deuteromycetes fungi which is commonly called as imperfect fungi.

Topic: Biology, Biological Classification, NEET
Which of the following is not an example of Ionic solids?

Options:
A NaCl
B ZnS
C AlN
D MgO

The correct answer is:
AlN

Solution:
Correct Option is : 3
AlN

Topic: Chemistry, Solid State, NEET
Which of the following is NOT an example of recessive autosomal disease?

Options:
A Myotonic dystrophy
B Cystic fibrosis
C Phenylketonuria
D Sickle-cell anaemia

The correct answer is:
Myotonic dystrophy

Solution:
The autosomal disorder is when the affected gene is located on the autosomes (chromosome other than sex chromosome). If the disorder is expressed only in homozygous condition, it is termed recessive autosomal disorder. Cystic fibrosis, sickle-cell anaemia, phenylketonuria are examples of autosomal recessive diseases.
Myotonic dystrophy is an autosomal dominant disorder.

Topic: Biology, Principles of Inheritance and Variation, NEET
Which of the following is not an example of solid in solid solution?

Options:
A Lead dissolved in Tin
B Carbon dissolved in carbon
C Copper dissolved in Gold
D Amalgam of Mercury with Sodium

The correct answer is:
Amalgam of Mercury with Sodium

Solution:
Correct Option is : 4
Amalgam of Mercury with Sodium

Topic: Chemistry, Solutions, NEET
Which of the following is not an example of step growth polymerisation?

Options:
A Glyptal
B Bakelite
C PVC
D dacron

The correct answer is:
PVC

Solution:
Correct Option is : 3
PVC

Topic: Chemistry, Polymers, NEET
Which of the following is not an example of Structural Isomerism in Coordination compounds?

Options:
A Linkage Isomerism
B Solvate Isomerism
C Ionisation isomerism
D Ligand Isomerism

The correct answer is:
Ligand Isomerism

Solution:
Correct Option is : (D)
Ligand Isomerism

Topic: Chemistry, Coordination Compounds, NEET
Which of the following is not an important step in lactation?

Options:
A Prolactin levels increase steadily during pregnancy.
B Estrogens and progesterone stimulate the growth and development of breasts throughout pregnancy.
C High prolactin level induces milk accumulation during pregnancy.
D After parturition, estrogen and progesterone level decreases and lactation occurs.

The correct answer is:
High prolactin level induces milk accumulation during pregnancy.

Solution:
Milk secretion does not occur during pregnancy, due to high level of estrogen, prolactin does not perform its function.

Topic: Biology, Human Reproduction, NEET
Which of the following is not an important step in the event of parturition?

Options:
A High levels of estrogen, prostaglandins and oxytocin cause the smooth muscles of the uterus to contract.
B The estrogen/progesterone ratio increases.
C Increase in oxytocin levels due to the positive feedback effect.
D Release of prolactin.

The correct answer is:
Release of prolactin.

Solution:
Prolactin stimulates milk secretion. It is not directly associated with the process of parturition and is normally of more importance once the child is born.

Topic: Biology, Human Reproduction, NEET
Which of the following is not an infectious disease?

Options:
A AIDS
B Cancer
C Hepatitis-B
D Typhoid

The correct answer is:
Cancer

Solution:
Cancer is a major cause of death all over the world. In India, more than a million people suffer from cancer annually out of which mostly die.
Causes of cancer: Cancer may be induced by physical, chemical or biological agents. These are collectively termed as carcinogens. Cancer is a non-infectious disease.

Topic: Biology, Human Health and Diseases, NEET
Which of the following is not an inhibitory substance governing seed dormancy?

Options:
A Abscisic acid
B Phenolic acid
C Para-ascorbic acid
D Gibberellic acid

The correct answer is:
Gibberellic acid

Solution:
Some seeds fail to germinate even when external conditions are favorable. Such seeds are dormant and are controlled by endogenous conditions within the seed itself. Impermeable and hard seed coat; phenolic acids, para-ascorbic acid; immature embryos, and the presence of chemical inhibitors such as abscisic acids are some reasons which cause seed dormancy. The effect of such inhibitory substances can be removed by the application of certain chemicals like gibberellic acid and nitrates or by subjecting the seeds to chilling conditions.

Topic: Biology, Plant - Growth and Development, NEET, NEET 2020 (Phase 1)
Which of the following is not an insectivorous plant?

Options:
A Drosera
B Nepenthes
C Monotropa
D Utricularia

The correct answer is:
Monotropa

Solution:
Monotropa is a saprophytic plant, whereas Nepenthes, Sarracenia, Drosera, Dionaea, and Utricularia are insectivorous plants.

Topic: Biology, Mineral Nutrition, NEET
Which of the following is not an Intra Uterine device?

Options:
A Progestogens
B Multiload 375
C Lippes loop
D Progestasert

The correct answer is:
Progestogens

Solution:
Progestogens are pills containing progesterone. These are NOT IUDs as they can be taken in the form of daily/weekly or monthly pills.

Topic: Biology, Reproductive Health, NEET, NEET 2022 (Phase 2)
Which of the following is not an intramolecular redox reaction ?

Options:
A NH 4 NO 2 ⟶ N 2 + 2 H 2 O
B 2 Mn 2 O 7 ⟶ 4 MnO 2 + 3 O 2
C 2 KClO 3 ⟶ 2 KCl + 3 O 2
D 2 H 2 O 2 ⟶ 2 H 2 O + O 2

The correct answer is:
2 H 2 O 2 ⟶ 2 H 2 O + O 2

Solution:
The given reaction is intermolecular reaction .
In intramolecular redox reaction, the molecule of a single substance undergoes oxidation-reaction by the process decomposition.

Topic: Chemistry, Redox Reactions, NEET
Which of the following is not an intra-uterine contraceptive device?

Options:
A Multiload 375
B Progestasert
C Implants
D Lippes loop

The correct answer is:
Implants

Solution:
The most effective and popular method of contraception in India is Intra-Uterine Devices (IUDs). These devices are inserted by doctors or expert nurses in the uterus through the vagina under complete privacy. This includes- Lippes loop, Multiload 375 and Progestasert. A contraceptive implant is hormonal birth control that's put into the arm.

Topic: Biology, Reproductive Health, NEET
Which of the following is not an invasive alien plant species in India?

Options:
A Parthenium
B Eichhornia
C Lantana
D Clarias

The correct answer is:
Clarias

Solution:
When alien species are introduced unintentionally or deliberately for whatever purpose some of them turns invasive and cause decline or extinction of indigenous species. The environmental damage caused and the threat posed to our native species by invasive species like carrot grass (Parthenium), Lantana and water hyacinth (Eichhornia).
The recent illegal introduction of the African catfish Clarias gariepinus for aquaculture purposes is posing a threat to the indigenous catfishes in our rivers.

Topic: Biology, Biodiversity and its Conservation, NEET
Which of the following is not an invasive alien species in the Indian context?

Options:
A Lantana
B Cynodon
C Parthenium
D Eichhomia

The correct answer is:
Cynodon

Solution:
Carrot grass (Parthenium), Lantana and water hyacinth (Eichhomia crassipe) are invasive weeds that cause environmental damage.

Topic: Biology, Biodiversity and its Conservation, NEET
Which of the following is NOT an invasive alien species in the Indian context?

Options:
A Lantana
B Cynodon
C Parthenium
D Eichhornia

The correct answer is:
Cynodon

Solution:
Doob grass or Cynodon is not an invasive species. Carrot grass, water hyacinth and Lantana are invasive species that pose threat to indigenous species from Indian context.

Topic: Biology, Biodiversity and its Conservation, NEET
Which of the following is not an ionic halide?

Options:
A UF4
B PbCl2
C SnCl2
D UF6

The correct answer is:
UF6

Solution:
UF6 has essentially covalent character. This is because small highly charged cations polarise the anions more effectively. For a metal with variable oxidation states, the halide with higher oxidation state of metal will be more covalent than the halide with lower oxidation of the metal. For example, PbCl4,SnCl4 and UF6 are more covalent in nature than PbCl2,SnCl2 and UF4 respectively.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Which of the following is not an objective of biofortification in crops?

Options:
A Improve protein content
B Improve resistance to diseases
C Improve vitamin content
D Improve micronutrient and mineral content

The correct answer is:
Improve resistance to diseases

Solution:
Biofortification is the method of breeding crops with higher levels of vitamins and minerals, or higher protein and healthier fats and hence is the most practical means to improve public health. Breeding for improved nutritional quality is undertaken with the objectives of improving - (i) Protein content and quality; (ii) Oil content and quality; (iii) Vitamin content; and (iv) Micronutrient and mineral content.

Topic: Biology, Strategies for Enhancement in Food Production, NEET, NEET 2021
Which of the following is not an organometallic compound?

Options:
A Zeise' s salt
B TEL
C Sodium ethoxide
D Ferrocene

The correct answer is:
Sodium ethoxide

Solution:
Organometallic compounds are those compounds in which metal is directly attached to the carbon atom. In sodium ethoxide, sodium attached to oxygen atom, hence it is not an organometallic compound.

Topic: Chemistry, Coordination Compounds, NEET
Which of the following is not an organo-metallic compound?

Options:
A (C2H5)4Pb
B C2H5-O-Na
C C4H9Li
D [(C5H5)2Fe]

The correct answer is:
C2H5-O-Na

Solution:
Compound in which the carbon or organic groups are directly bonded to metal atoms are known as organometallic compounds. Sodium ethoxide is an alkoxide and not an organometallic as no metal carbon bond.Rest all organometallic as they have metal carbon bond.

Topic: Chemistry, Coordination Compounds, NEET
Which of the following is NOT an ortho or para directing group in electrophilic aromatic substitution reactions?

Options:
A Phenolic (-OH) group
B Amino (-NH2) group
C Methyl (-CH3) group
D Chlorine (-Cl) atom

The correct answer is:
Chlorine (-Cl) atom

Solution:
In electrophilic aromatic substitution reactions, ortho and para directing groups increase electron density at these positions, promoting substitution. Chlorine (-Cl) is a moderately deactivating group due to its strong -I effect and does not increase electron density on the ortho and para positions, unlike the other groups listed.

Topic: Chemistry, Hydrocarbons, NEET
Which of the following is not applicable for members of the phylum Echinodermata?

Options:
A Habitat - Exclusively marine
B Symmetry - Adults are radially symmetrical
C Body system - Presence of canal system due to the folding of the body wall
D Development - Indirect

The correct answer is:
Body system - Presence of canal system due to the folding of the body wall

Solution:
Canal system due to foldings of body wall is the feature of sponges (members of Phylum Porifera). The most important feature of echinoderms is presence of water vascular system. It performs the function of locomotion, capture and transport of food.

Topic: Biology, Animal Kingdom, NEET
Which of the following is not applicable to the given figure ?

Options:
A This process occurs when light ofwavelengths beyond 680 nm are available forexcitation.
B This process results only in the synthesis of ATP not of NADPH + H+
C This process requires two molecules of H2O to release one O2
D This process occurs in the thylakoid which lack NADP reductase enzyme

The correct answer is:
This process requires two molecules of H2O to release one O2

Solution:
When only PS I is functional, the electron is circulated within the photosystem and the phosphorylation occurs due to cyclic flow of electrons. A possible location where this could be happening is in the stroma lamellae. While the membrane or lamellae of the grana have both PS I and PS II the stroma lamellae membranes lack PS II as well as NADP reductase enzyme. The excited electron does not pass on to NADP+ but is cycled back to the PS I complex through the electron transport chain. The cyclic flow hence results only in the synthesis of ATP, but not of NADPH + H+. Cyclic photophosphorylation also occurs when only light of wavelengths beyond 680 nm are available for excitation.

Topic: Biology, Photosynthesis in Higher Plants, NEET
Which of the following is not associated with innermost mucosa layer of small intestine?

Options:
A Intestinal glands
B Microvilli
C Duodenal glands
D Goblet cells

The correct answer is:
Duodenal glands

Solution:
Innermost mucosa layer of a small intestine has mucosal epithelium which is modified to form the intestinal gland or Crypts of Lieberkuhn to secrete digestive enzymes and villi/microvilli to increase surface area for maximum absorption of food. It also contain goblet cells to secrete mucus. Duodenal glands (or Brunner's glands) are located in the submucosal layer.

Topic: Biology, Digestion and Absorption, NEET
Which of the following is not associated with the innermost mucosa layer of the small intestine?

Options:
A Goblet cells
B Brunner gland
C Crypts of Lieberkuhn
D Villi and microvilli

The correct answer is:
Brunner gland

Solution:
Innermost mucosa layer of a small intestine has mucosal epithelium. This is modified to form the Intestinal gland or Crypts of Lieberkuhn to secrete digestive enzymes and villi/microvilli to increase surface area for maximum absorption of food. It also contains Goblet cells to secrete mucus. Brunner's gland is present in the submucosal layer.

Topic: Biology, Digestion and Absorption, NEET
Which of the following is not bent?

Options:
A CO2
B H2O
C H2S
D H2Se

The correct answer is:
CO2

Solution:
Correct Option is : 1
CO2

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Which of the following is not bent?

Options:
A SO2
B O3
C NH3
D H2O:

The correct answer is:
NH3

Solution:
Correct Option is : 3
NH3

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Which of the following is not caused by the deficiency of minerals?

Options:
A Chlorosis
B Etiolation
C Shortening of internodes
D Necrosis

The correct answer is:
Etiolation

Solution:
Etiolation is the symptom developed in plants when grown in the dark. Examples include pale yellow or white colour due to lack of chlorophyll, long internodes, small and rudimentary leaves, poor development of significant tissue.

Topic: Biology, Mineral Nutrition, NEET
Which of the following is not characteristic of Proteins facilitating in Transport?

Options:
A They are selective
B Responds to inhibitors
C Are under Hormonal control
D None of the above

The correct answer is:
None of the above

Solution:
Proteins in the membrane are responsible for facilitated diffusion and active transport and hence show common characterstics of being highly selective; they are liable to saturate, respond to inhibitors and are under hormonal regulation.

Topic: Biology, Transport in Plants, NEET
Which of the following is not common between facilitated transport and active transport?

Options:
A Uphill transport
B Highly selective
C Transport saturates
D Requirement of special membrane proteins

The correct answer is:
Uphill transport

Solution:
Property	Facilitated transport	Active transport

Requires special membrane proteins	Yes	Yes

Highly selective	Yes	Yes

Transport saturates	Yes	Yes

Uphill transport	No	Yes

Requires ATP energy	No	Yes

Topic: Biology, Transport in Plants, NEET
Which of the following is not common in Funaria and Selaginella?

Options:
A Roots
B Archegonium
C Embryo
D Motile sperms

The correct answer is:
Roots

Solution:
A rhizome with hair-like root structures is present in Selaginella (Pteridophytes) and rhizoids are present in Funaria (Bryophytes).

Topic: Biology, Plant Kingdom, NEET
Which of the following is NOT considered an example of oxidation?

Options:
A Formation of magnesium oxide (MgO)
B Conversion of sulfur (S) to sulfur dioxide (SO2)
C Combustion of methane (CH4) to carbon dioxide (CO2) and water (H2O)
D Reduction of mercury oxide (HgO) to mercury (Hg) and oxygen (O2)

The correct answer is:
Reduction of mercury oxide (HgO) to mercury (Hg) and oxygen (O2)

Solution:
The passage states that reduction is the removal of oxygen or electronegative elements, so the reduction of mercury oxide does not fall under the definition of oxidation.

Topic: Chemistry, Redox Reactions, NEET
Which of the following is not correct?

Options:
A H2O2 oxidizes Fe (II) to Fe (III)
B H2O2 is a weak base
C H2O2 can be obtained by the electrolysis of dil. H2SO4
D H2O2 reduces Mn (VII) to Mn (II)

The correct answer is:
H2O2 is a weak base

Solution:
H2O2 is weakly acidic, but more acidic than water.
H2O2+H2O→H3O++HO2-
A. 2Fe2++H2O2+2H+→2Fe3++2H2O
C. H2SO4⇌H++HSO4-
Anode 2HSO4-→H2S2O8+2e-
Cathode 2H++2e-→H2
The peroxy disulphuric acid is hydrolysed separately to get H2O2 .
H2S2O8+H2O→H2SO5+H2SO4
H2SO5+H2O→H2SO4+H2O2
D. 2MnO4-+5H2O2+6H+→2Mn2++8H2O+5O2

Topic: Chemistry, s Block Elements, NEET
Which of the following is not correct?

Options:
A Lead is a true metal with +2 electrovalency
B Lead forms PbCl4 , which is soluble in organic solvent
C Lead reacts with conc. HCl to form PbCl2
D Lead reacts with NaOH solution to form Pb(OH)4

The correct answer is:
Lead reacts with NaOH solution to form Pb(OH)4

Solution:
Lead reacts with NaOH to form sodium plumbite and H2(g) .
Pb+2NaOH→Na2PbO2+H2
Rest all other statements are correct.

Topic: Chemistry, d and f Block Elements, NEET
Which of the following is not correct?

Options:
A The blood vessel leading to the glomerulus is called the afferent arteriole.
B Juxtamedullary nephrons, peritubular capillaries and Bowman's capsule all lie in the cortical region of the kidney.
C Cortical nephrons have no or highly reduced vasa recta.
D Vasa recta run parallel to the Henle's loop in juxtamedullary nephrons but the flow of blood inside them is in the opposite direction.

The correct answer is:
Juxtamedullary nephrons, peritubular capillaries and Bowman's capsule all lie in the cortical region of the kidney.

Solution:
The Malpighian corpuscle, PCT and DCT of the nephron are situated in the cortical region of the kidney whereas the loop of Henle dips into the medulla. In majority of nephrons, the loop of Henle is too short and extends only very little into the medulla. Such nephrons are called cortical nephrons.
The efferent arteriole emerging from the glomerulus forms a fine capillary network around the renal tubule called the peritubular capillaries. A minute vessel of this network runs parallel to the Henle’s loop forming a ‘U’ shaped vasa recta. Vasa recta is absent or highly reduced in cortical nephrons.

Topic: Biology, Excretory Products and their Elimination, NEET
Which of the following is not correct?

Options:
A Robert Brown discovered the cell.
B Schleiden and Schwann formulated the cell theory.
C Virchow explained that cells are formed from pre-existing cells
D A Unicellular organism carries out its life activities within a single cell.

The correct answer is:
Robert Brown discovered the cell.

Solution:
Robert Brown discovered the cell.

Topic: Biology, Cell - The Unit of Life, NEET
Which of the following is not correct about acetabulum?

Options:
A It is a part of pectoral girdle.
B It articulates with the head of femur to form the hip joint.
C It is formed by the fusion of ilium, ischium and pubis.
D It is a part of pelvic girdle.

The correct answer is:
It is a part of pectoral girdle.

Solution:
The acetabulum is the socket where head of the femur articulates to form hip joint. It is formed by the fusion of three bones of the pelvis - ischium, ilium and pubis. During the articulation, the acetabulum is oriented laterally, inferiorly and anteriorly while the femur is neck is directed superiorly, slightly anterior with medial orientation.
The scapula and colar bone forms the bone of the shoulder region i.e. pectoral girdle.

Topic: Biology, Locomotion and Movement, NEET
Which of the following is not correct about carbon monoxide?

Options:
A It reduces oxygen carrying ability of blood
B The carboxyhemoglobin (haemoglobin bound to CO) is less stable than oxyhemoglobin
C It is produced due to incomplete combustion
D It forms carboxyhaemoglobin

The correct answer is:
The carboxyhemoglobin (haemoglobin bound to CO) is less stable than oxyhemoglobin

Solution:
Correct statements are:

1. It reduces oxygen carrying ability of blood.

2. It is produced due to incomplete combustion

3. It forms carboxyhaemoglobin.

4. Carboxyhemoglobin (haemoglobin bound to CO) is more stable than oxyhemoglobin.

Topic: Chemistry, Environmental Chemistry, NEET, NEET 2020 (Phase 1)
Which of the following is not correct about chemical nature of a hormone?

Options:
A Peptide and polypeptide
B Steroid and iodothyronine
C Steroids and amino acid derivative
D Nucleic acid derivatives

The correct answer is:
Nucleic acid derivatives

Solution:
Chemically a hormone may be peptide(insulin), polypeptide, steroids(aldosterone), iodothyronine (thyroid hormones) and amino acid derivative (norepinephrine).

Topic: Biology, Chemical Coordination and Integration, NEET
Which of the following is not correct about the alkaloid obtained from the Papaver somniferum plant?

Options:
A These are opioids drugs, binds to specific opioid receptors present in our brain and gastrointestinal tract.
B Heroin is chemically diacetylmorphine and is commonly called smack.
C It is taken by snorting and injection.
D It is a CNS stimulant which also causes hallucinations.

The correct answer is:
It is a CNS stimulant which also causes hallucinations.

Solution:
Opioids are the drugs that bind to specific opioid receptors present in our brain and gastrointestinal tract. Heroin is chemically diacetylmorphine and is commonly called a smack. It is taken by snorting and injection. Opioids are not hallucination inducing agents.

Topic: Biology, Human Health and Diseases, NEET