datavorous/entrance-exam-dataset huggingface dataset:
Which of the following is not a non-electrolyte

Options:
A Acetic acid
B Glucose
C Ethanol
D Urea

The correct answer is:
Acetic acid

Solution:
The substances whose aqueous solutions allow the passage of electric current and are chemically decomposed, are termed electrolytes. Electrolytic substances are classified as strong or weak according to how readily they dissociate into conducting ions. Acetic acid is a weak electrolyte. Glucose, ethanol and urea are non-electrolytes.

Topic: Chemistry, Electrochemistry, JEE Main
Which of the following is not a part of brain stem of human brain?

Options:
A Mid brain
B Pons
C Medulla oblongata
D Cerebellum

The correct answer is:
Cerebellum

Solution:
The Brain stem of human brain consists of mainly three regions namely mid brain, pons and medulla oblongata. Hypothalamus may or may not be included under brain stem. Cerebellum is not the part of brain stem.

Topic: Biology, Neural Control and Coordination, NEET
Which of the following is not a part of the respiratory system of Periplaneta americana?

Options:
A Trachea
B Sclerites
C Spiracles
D Both 'B' and 'C'

The correct answer is:
Sclerites

Solution:
Respiratory system (tracheal system). It is well-developed and consists of:
1. Network of trachea. 2. Tracheoles (thin branching tubes) 3. Spiracles (10 pairs).
Trachea forms a network and its branches reach to every part of the body without involving the circulatory system. Body tissues receive the oxygen by diffusion from the tracheoles.
Spiracles are equivalent to the nostrils of the human through which the tracheal system open outside to atmosphere. First thoracic and abdominal spiracles remain always open while other are guarded by sphincters or valves. Sclerites are chitinous plates covering the segments - 2 pleurites (lateral), 1 tergite (dorsal) and 1 sternite (ventral). These sclerites are joined together by arthrodial membrane which is a thin and flexible articular membrane.

Topic: Biology, Structural Organisation in Animals, NEET
Which of the following is not a post pollination development?

Options:
A Formation of callose plugs in pollen tube
B Division of pollen cell into tube cell and generative cell.
C Secretion of pectinase and other hydrolytic enzyme.
D Swelling of tube cell and formation of pollen tube.

The correct answer is:
Division of pollen cell into tube cell and generative cell.

Solution:
Pollen becomes a two-celled structure before pollination. Microgametogenesis comprises events that lead to the progressive development of the unicellular microspores into mature microgametophytes containing the gametes. This phase begins with the expansion of the microspore which is commonly associated with the formation of a single large vacuole. Vacuolation is accompanied by the displacement of the microspore nucleus to an eccentric position against the microspore wall. In this position, the nucleus undergoes first pollen mitosis (pollen mitosis I) which results in the formation of two unequal cells, a large vegetative cell and a small generative cell each containing a haploid nucleus. In over 60 percent of angiosperms, pollen grains are shed at this 2-celled stage. In the remaining species, the generative cell divides mitotically to give rise to the two male gametes before pollen grains are shed (3-celled stage).

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
Which of the following is not a product of a light reaction of photosynthesis?

Options:
A NADPH
B NADH
C ATP
D Oxygen

The correct answer is:
NADH

Solution:
NADH is not a product of the light reaction of photosynthesis.NAD (nicotinamide adenine dinucleotide) and NADP (nicotinamide adenine dinucleotide phosphate) are the most abundant types of coenzymes inside the cell which are used as electron and hydrogen carriers. NADH and NADPH are the reduced forms of NAD and NADP, respectively. Though NADH and NADPH are structurally more similar, they differ by their role in the cell. The main difference between NADH and NADPH is that NADH is used in cellular respiration, whereas NADPH is used in photosynthesis. NADH is produced in the glycolysis and Krebs cycle and is used in the electron transport chain to produce ATP via oxidative phosphorylation.

NADPH is produced in the light reaction of photosynthesis and is used in the Calvin cycle to assimilate carbon dioxide. ATPs are produced during photophosphorylation, and oxygen is evolved during the photolysis of water.

Topic: Biology, Photosynthesis in Higher Plants, NEET, NEET 2018
Which of the following is not a property of a Binomial distribution?

Options:
A Random experiment consists of a sequence of n identical trials
B Each outcome can be referred to as a success or a failure
C The probabilities of the two outcomes can change from one trial to the next
D The trials are independent

The correct answer is:
The probabilities of the two outcomes can change from one trial to the next

Solution:
We know that properties of Binomial Distribution are

There are two possible outcomes: true or false, success or failure, yes or no.

There is 'n' number of independent trials or a fixed number of $n$ times repeated trials.

The probability of success or failure remains the same for each trial.

Only the number of success is calculated out of n independent trials.

Every trial is an independent trial, which means the outcome of one trial does not affect the outcome of another trial.

So, the probabilities of the two outcomes can change from one trial to the next is not a property.

Topic: Mathematics, Probability, AP EAMCET, AP EAMCET 2022 (04 Jul Shift 2)
Which of the following is not a property of Metal Excess Defect?

Options:
A Electrical neutrality is not maintained
B Coloured due to free electrons
C Only alkali metals show this defect
D Doesn’t affects the density of solids

The correct answer is:
Doesn’t affects the density of solids

Solution:
Correct Option is : 4
Doesn’t affects the density of solids

Topic: Chemistry, Solid State, NEET
Which of the following is not a resonance structure of the other?

Options:
A
B
C
D

The correct answer is:

Solution:
This carbon is involved in resonance so this structure is not possible as here charge is not possible.

Topic: Chemistry, General Organic Chemistry, JEE Main
Which of the following is not a RNA?

Options:
A $m$-RNA
B $d$-RNA
C $t-\mathrm{RNA}$
D $r$-RNA

The correct answer is:
$d$-RNA

Solution:
Three main types of RNA are involved in protein synthesis. They are $m$-RNA, $t$-RNA and $r$-RNA. Hence, $d$-RNA is not a type of RNA.

Topic: Chemistry, Biomolecules, AP EAMCET, AP EAMCET 2022 (07 Jul Shift 1)
Which of the following is not a role of predation?

Options:
A Acts as 'conduits' of energy transfer across trophic levels.
B Keep prey population under control
C Helps in maintaining species diversity in a community.
D It is a potent force of organic evolution.

The correct answer is:
It is a potent force of organic evolution.

Solution:
Predation is nature's way of transferring energy across trophic levels in food chain. Predators also help in maintaining species diversity in a community by reducing the intensity of competition among prey species. It also keeps prey population under control.

Topic: Biology, Organisms and Populations, NEET
Which of the following is not a significant aspect of mitosis?

Options:
A It introduce variations
B It replaces old or worn out cells
C It helps in healing wounds
D It maintains genetic stability

The correct answer is:
It introduce variations

Solution:
Mitosis is also called equational division because in this there is an equal distribution of chromosomes in daughter nuclei. It is also called somatic cell division. The number of chromosomes remains unchanged in mitosis, crossing over and recombination process is not seen in mitosis so, variation is not introduced through mitosis and it maintains genetic stability. It also helps in growth, repair, or healing by replacing old or worn-out cells by new cells.

Topic: Biology, Cell Cycle and Cell Division, NEET
Which of the following is not a state function

Options:
A $\Delta S$
B $\Delta G$
C $\Delta H$
D $\Delta Q$

The correct answer is:
$\Delta Q$

Solution:
$\Delta Q$ is not a state function.

Topic: Chemistry, Thermodynamics (C), JEE Main
Which of the following is not a statement

Options:
A Give me a glass of water
B Asia is a continent
C The earth revolved round the sun
D The number 6 has two prime factors 2,3

The correct answer is:
Give me a glass of water

Solution:
"Give me a glass of water" is not a statement.

Topic: Mathematics, Mathematical Reasoning, JEE Main
Which of the following is not a statement?

Options:
A Every set is a finite set
B 18 is multiple of 6
C Prime numbers are irrational numbers
D None of these

The correct answer is:
None of these

Solution:
(A) It is false → it is statement
(B) It is true → it is statement
(C) It is false → it is statement

Topic: Mathematics, Mathematical Reasoning, JEE Main
Which of the following is not a tautology?

Options:
A p∧q→p∨q
B p→p∨q
C q→p→q
D p→p∧q

The correct answer is:
p→p∧q

Solution:
p	q	p∧q	p∨q	p→q	A	B	C	D

T	T	T	T	T	T	T	T	T

T	F	F	T	F	T	T	T	F

F	T	F	T	T	T	T	T	T

F	F	F	F	T	T	T	T	T

Topic: Mathematics, Mathematical Reasoning, JEE Main
Which of the following is not a vertex of the positive region bounded by the inequalities $2 x+3 y \leq 6,5 x+3 y \leq$ 15 and $x, y \geq 0$

Options:
A $(0,2)$
B $(0,0)$
C $(3,0)$
D None of these

The correct answer is:
None of these

Solution:
Here $(0,2) ;(0,0)$ and $(3,0)$ all are vertices of feasible region.

Topic: Mathematics, Linear Programming, JEE Main
Which of the following is not an alicyclic compound?

Options:
A

B

C

D

The correct answer is:

Solution:

Topic: Chemistry, General Organic Chemistry, JEE Main
Which of the following is not an assumption of the kinetic theory of gases?

Options:
A Collisions of gas particles are perfectly elastic.
B A gas consists of many identical particles which are in continual motion.
C At high pressure, gas particles are difficult to compress.
D Gas particles have negligible volume.

The correct answer is:
At high pressure, gas particles are difficult to compress.

Solution:
At high pressures gas particles are difficult to compress rather they are not compressible at all.

Topic: Chemistry, States of Matter, JEE Main, JEE Main 2015 (10 Apr Online)
Which of the following is not an effect produced by parasympathetic stimulation?

Options:
A Promotes sugar release
B Constriction of bronchi
C Increased saliva secretion
D Increased stomach peristalsis

The correct answer is:
Promotes sugar release

Solution:
Nervous System consists of Central and Peripheral nervous system i.e. CNS and PNS. CNS includes brain and spinal cord. PNS includes Somatic and Autonomic nervous system (ANS). ANS includes Sympathetic and Parasympathetic nervous systems. These systems work to maintain the body during stress. Sympathetic system works during stress and Parasympathetic works to get the body back to normal. Sympathetic effect is decrease in saliva, Relaxation of bronchioles and decreased stomach peristalsis. Parasympathetic is opposite to these effects. Pancreatic hormones Glucagon and Insulin are responsible for sugar metabolism.

Topic: Biology, Neural Control and Coordination, NEET
Which of the following is not an essential amino acid?

Options:
A Tyrosine
B Leucine
C Valine
D Lysine

The correct answer is:
Tyrosine

Solution:
Tyrosine is a non-essential amino acid.

Topic: Chemistry, Biomolecules, JEE Main, JEE Main 2020 (05 Sep Shift 1)
Which of the following is not an essential amino acid?

Options:
A Lysine
B Histidine
C Valine
D Tyrosine

The correct answer is:
Tyrosine

Solution:
Tyrosine is one of the 20 standard amino acids present in the body and used by cells to synthesis proteins. This is a non-essential amino acid, meaning that when it is not only ingested from diet, it is also synthesised by the body.

Topic: Chemistry, Biomolecules, JEE Main
Which of the following is not an example of benzenoid compound?

Options:
A

B

C

D

The correct answer is:

Solution:
Compounds that contain at least one benzene ring in their structure are called benzenoid compounds.

The above compounds are benzenoid compounds due to the presence of benzene ring.

Cycloocta-1,3,5,7-tetraene is non aromatic beacause of its tub shaped structure.

Topic: Chemistry, General Organic Chemistry, JEE Main, JEE Main 2022 (26 Jul Shift 2)
Which of the following is NOT an example of fibrous protein ?

Options:
A Keratin
B Albumin
C Myosin
D Collagen

The correct answer is:
Albumin

Solution:
Fibrous protein are animal proteins and are not soluble in water. Their molecules are typically thread-like and long, some examples are myosin, collagen, keratin.

Topic: Chemistry, Biomolecules, JEE Main, JEE Main 2021 (31 Aug Shift 2)
Which of the following is not an example of heterogeneous catalysis reaction?

Options:
A Combustion of Coal
B Hydrogenation of Vegetable oils
C Ostwald's process
D Haber's process

The correct answer is:
Combustion of Coal

Solution:
A Since Combustion of Coal is a fast and spontaneous process, no catalyst is required.
B Catalyst used in Hydrogenation of Vegetable oils is Ni(s)
C Catalyst used in Haber's process is Fe(s).
D Catalyst used in Ostwald's process is Pt(s)

Topic: Chemistry, Surface Chemistry, JEE Main, JEE Main 2019 (10 Jan Shift 1)
Which of the following is not an example of heterogeneous catalysis?

Options:
A nCH2=CH2âR3Al+TiCl4-CH2-CH2-4
B 2SO2+O2âPt-Asbestos 2SO3
C RCOOR â Catalyst H + RCOOH + ROH
D 2H2O2lâHgl2H2O+O2

The correct answer is:
RCOOR â Catalyst H + RCOOH + ROH

Solution:
It is an example of homogeneous solution phase catalysis in which catalyst and reactant in solution phase of miscible nature whereas in d, reactant is liquid and catalyst is also liquid but are immiscible and have more than one phase.

Topic: Chemistry, Surface Chemistry, JEE Main
Which of the following is not an example of osmosis?

Options:
A Water passing from root hair to adjacent cells.
B Water passing up a xylem element to another element above it.
C Water entering mesophyll cell from the xylem elements.
D Water entering the root hair from the soil.

The correct answer is:
Water passing up a xylem element to another element above it.

Solution:
Osmosis is the process of movement of water along the concentration gradient through a selectively permeable membrane. Movement of water among adjacent cells is by osmosis as observed in water moving in root cells and also from vascular bundle to ground tissue cells.
The process of uptake of water from soil into the root is mainly by osmosis due to difference in the water concentration in the root cell and soil.
Movement of water within the xylem element is by capillary action and cohesion action of the water than osmosis. Also, the movement is assisted by transpirational pull and diffusion.

Topic: Biology, Transport in Plants, NEET
Which of the following is not an organometallic compound

Options:
A Ethyl magnesium bromide
B Tetraethyl lead
C Sodium ethoxide
D Trimethyl aluminium

The correct answer is:
Sodium ethoxide

Solution:
Organometallic compounds are those compounds in which carbon atom is directly linked to metal. But in sodium ethoxide as oxygen is attached to sodium metal so it is not a organometallic compound.

Topic: Chemistry, Coordination Compounds, JEE Main
Which of the following is not correct?

Options:
A The metallic conduction is due to the movement of electrons in the metal
B The electrolytic conduction is due to the movement of ions in the solution
C The current carrying ions are not necessarily discharged at the electrodes
D The metallic conduction increases with the increase in temperature, whereas that of electrolytic conduction decreases with temperature.

The correct answer is:
The metallic conduction increases with the increase in temperature, whereas that of electrolytic conduction decreases with temperature.

Solution:
The metallic conduction decreases with increase in temperature, but electrolytic conduction increases with the increase in temperature. Because the metallic conduction is due to the movement of electrons in the metal and the electrolytic conduction is due to the movement of ions in the solution.

Topic: Chemistry, Electrochemistry, JEE Main
Which of the following is not correct?

Options:
A The megaspore mother cell is differentiated from one of the cells of the nucellus.
B The megaspore mother cell divides meiotically to form four megaspores.
C One of the megaspores enclosed within the megasporangium develops into a multicellular female gametophyte.
D The multicellular female gametophyte is not retained within the megasporangium

The correct answer is:
The multicellular female gametophyte is not retained within the megasporangium

Solution:
In plants, the diploid megaspore mother cell is differentiated from one of the cells of the nucellus by the process of megasporogenesis. This diploid mother cell undergoes meiosis to form four haploid megaspores from which one of the megaspores remains enclosed within the megasporangium and develop into a multicellular female gametophyte that is retained within the megasporangium.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
Which of the following is not correct?

Options:
A ΔG is negative for a spontaneous reaction
B ΔG is positive for a spontaneous reaction
C ΔG is zero for a reversible reaction
D ΔG is positive for a non-spontaneous reaction

The correct answer is:
ΔG is positive for a spontaneous reaction

Solution:
∆G can be expressed as:

∆G=∆H-T∆S

where ∆G is the change in free energy

∆H is the change in enthalpy

T is the temperature

∆S is the change in entropy.

Conditions for spontaneous and non spontaneous reactions in terms of free energy change are as follows,

ΔG>0 for non-sponateneous reaction

ΔG<0 for spontaneous reaction.

ΔG=0 for equilibrium reaction

(ΔG)P,T=(+)ve for non-spontaneous process

Hence option B is the answer.

Topic: Chemistry, Thermodynamics (C), JEE Main, JEE Main 2024 (29 Jan Shift 1)
Which of the following is not correct?

Options:
A Chlorine is insoluble in water
B Iodine is more reactive than bromine
C Bromine is more reactive than chlorine
D Iodine is a solid

The correct answer is:
Chlorine is insoluble in water

Solution:
Iodine is a solid
$\mathrm{I}_2, \mathrm{Br}_2, \mathrm{Cl}_2$ and $\mathrm{F}_2$ are Solid, Liquid, Gas and Gas respectively.
Chlorine is soluble in water.
Order of reactivity :
$\mathrm{I}_2 \lt \mathrm{Br}_2 \lt \mathrm{Cl}_2 \lt \mathrm{F}_2$

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), JEE Main
Which of the following is not correct ?

Options:
A Ammonia is used as refrigerant
B A mixture of $\mathrm{Ca}(\mathrm{CN})_2$ and $\mathrm{C}$ is known as nitrolim
C A mixture of $\mathrm{Ca}\left(\mathrm{H}_2 \mathrm{PO}_4\right)_2$ and $\mathrm{CaSO}_4 \cdot 2 \mathrm{H}_2 \mathrm{O}$ is known as superphosphate of lime
D Hydrolysis of $\mathrm{NCl}_3$ gives $\mathrm{NH}_3$ and $\mathrm{HOCl}$

The correct answer is:
A mixture of $\mathrm{Ca}(\mathrm{CN})_2$ and $\mathrm{C}$ is known as nitrolim

Solution:
A mixture of calcium cyanamide $\mathrm{CaCN}_2$ and coke (C) is called nitrolim. It is used as it fertilizer and can be prepared by passing nitrogen on $\mathrm{CaC}_2$.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), JEE Main
Which of the following is not correct?

Options:
A Chlorophyll is responsible for the synthesis of carbohydrates in plants
B The compound formed in the addition of oxygen to haemoglobin is called oxyhaemoglobin
C Acetyl salicylic acid is known as aspirin
D The metal ion present in vitamin $\mathrm{B}_{12}$ is $\mathrm{Mg}^{2+}$

The correct answer is:
The metal ion present in vitamin $\mathrm{B}_{12}$ is $\mathrm{Mg}^{2+}$

Solution:
Vitamin $B_{12}$ or cyanocobalamine contains cobalt and not magnesium.

Topic: Chemistry, Coordination Compounds, JEE Main
Which of the following is not correct for ideal solution

Options:
A $\Delta S_{m i x}=0$
B $\Delta H_{\text {mix }}=0$
C It obeys Raoult's law
D $\Delta V_{\text {mix }}=0$

The correct answer is:
$\Delta S_{m i x}=0$

Solution:
For the ideal solution $\Delta S_{m i x}$ is not equal to zero.

Topic: Chemistry, Solutions, JEE Main
Which of the following is not correct for relation R on the set of real numbers?

Options:
A (x,y)∈R⇔|x|-|y|≤1 is reflexive but not symmetric.
B (x,y)∈R⇔|x-y|≤1 is reflexive and symmetric.
C (x,y)∈R⇔0<|x-y|≤1 is symmetric and transitive.
D (x,y)∈R⇔0<|x|-|y|≤1 is not transitive but symmetric.

The correct answer is:
(x,y)∈R⇔0<|x|-|y|≤1 is not transitive but symmetric.

Solution:
We know that (x, y)∈R , (y, x)∈R ⇒symmetric

(x, y)∈R , (y, z)∈R & (z, x)∈R⇒transitive
0<|x-y|≤10<|y-x|≤1is symmetric

let

0<|x-y|≤1 .......(1)
(1,2)∈R and (2,3)∈R satisfy the equation (1)
but (1,3)∉R not satisfied
Hence 0<|x-y|≤1 is symmetric but not transitive relation

Topic: Mathematics, Sets and Relations, JEE Main, JEE Main 2021 (31 Aug Shift 1)
Which of the following is not correct regarding translocation of food in plants?

Options:
A In food transport the source-sink the relationship is variable depending on the season or the plant's need.
B Phloem sap consists of mainly water and sucrose, but other sugars, hormones and amino acids are also translocated through the phloem.
C In sugar utilising sink cells, the osmotic pressure must be very high so that they can get water along with sugar from the phloem.
D Active transport is required for the process of loading and unloading of sugar.

The correct answer is:
Phloem sap consists of mainly water and sucrose, but other sugars, hormones and amino acids are also translocated through the phloem.

Solution:
At the source end, sugar is formed, its water potential decreases and water enters the sieve tube osmotically. Hence, turgor pressure increases and at the sink end, osmotic potential decreases. This osmotically generated gradient causes mass or bulk transport between the sink and source.

Topic: Biology, Transport in Plants, NEET
Which of the following is not correct?

Options:
A Rusting of iron can be stopped by increasing the concentration of CO2 in water
B Rusting of iron is electrochemical in nature
C Rusting of iron takes place in moist air
D Rusting of iron produces hydrated iron (III) oxide

The correct answer is:
Rusting of iron can be stopped by increasing the concentration of CO2 in water

Solution:
Rusting of iron is an electrochemical phenomenon in which one spot of iron acts as anode.
Fes→Fe2+aq+2e-
These electrons move through the metal and are taken up by the oxygen already dissolved in water in presence of H+ furnished by H2CO3 , which is formed by the dissolution of CO2g in water. The concentration of H+ depends upon the concentration of CO2 in water.
Cathode O2aq+4H++4e-→2H2Ol
Since increase in the concentration of H+ results in the increase in the rate of the reaction, therefore, rusting of iron occurs quicker, when the concentration of dissolved CO2 in water increases.
Fe2+ so-obtained are further oxidized to Fe2O3 by atmospheric oxygen. Fe2O3 is then hydrated to form rust.
Fe2O3+xH2O→Fe2O3.xH2ORust

Topic: Chemistry, d and f Block Elements, JEE Main
Which of the following is not correctly matched?

Options:
A Neoprene:

B Nylon-66:

C
D Polymethyl methacrylate (PMMA): (-CH2-C-)n | | CH3 COOCH3

The correct answer is:

Solution:

Topic: Chemistry, Polymers, JEE Main
Which of the following is not equal to w.u×v?

Options:
A u.v×w
B v.w×u
C u×v.w
D v.u×w

The correct answer is:
v.u×w

Solution:
Key Idea Use
a×b.c=b×c.a=c×a.b
∴w.u×v=-v.u×w

Topic: Mathematics, Vector Algebra, JEE Main
Which of the following is not equal to watt

Options:
A Joule/second
B Ampere volt
C $(Ampere)^{2}$ $\times$ Ohm
D Ampere/volt

The correct answer is:
Ampere/volt

Solution:
Watt $=$ Joule/second $=$ Ampere $\times$ volt $=$ $Ampere^2$ $\times$ Ohm

Topic: Physics, Units and Dimensions, JEE Main