NEET 2020 Phase 1
Paper was held on Sun, Sep 13, 2020 2:00 PM
View Questions

Biology

Which of the following is correct about viroids?
View Question
Which of the following pairs is of unicellular algae?
View Question
Floridean starch has structure similar to
View Question
Strobili or cones are found in
View Question
Bilaterally symmetrical and acoelomate animals are exemplified by
View Question
Which of the following statements are true for the phylum-Chordata (i) In Urochordata notochord extends from head to tai
View Question
If the head of cockroach is removed, it may live for few days because
View Question
Match the following columns and select the correct option : .tg {border-collapse:collapse;border-spacing:0;} .tg td{bo
View Question
Match the following columns and select the correct option : .tg {border-collapse:collapse;border-spacing:0;} .tg td{bo
View Question
Ray florets have
View Question
The ovary is half inferior in:
View Question
Identify the incorrect statement.
View Question
The roots that originate from the base of the stem are
View Question
The transverse section of a plant shows following anatomical features : (i) Large number of scattered vascular bundles
View Question
Cuboidal epithelium with brush border of microvilli is found in
View Question
Which of the following statements about inclusion bodies is incorrect?
View Question
Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells?
View Question
Identify the substances having glycosidic bond and peptide bond, respectively in their structure
View Question
Which one of the following is the most abundant protein in the animals?
View Question
Some dividing cells exit the cell cycle and enter vegetative inactive stage. This is called quiescent stage (G0). This p
View Question
Match the following with respect to meiosis (A) Zygotene      (i) Terminalization (B) Pachytene
View Question
Dissolution of the synaptonemal complex occurs during
View Question
In light reaction, plastoquinone facilitates the transfer of electrons from
View Question
The oxygenation activity of RuBisCo enzyme in photorespiration leads to the formation of
View Question
The number of substrate level phosphorylations in one turn of citric acid cycle is
View Question
Which of the following is not an inhibitory substance governing seed dormancy?
View Question
Name the plant growth regulator which upon spraying on sugarcane crop, increases the length of stem, thus increasing the
View Question
Select the correct events that occur during inspiration. (i) Contraction of diaphragm (ii) Contraction of external inter
View Question
Identify the wrong statement with reference to transport of oxygen.
View Question
Match the following columns and select the correct option. Column-I Column-II (a) Eosinophils
View Question
The QRS complex in a standard ECG represents
View Question
Presence of which of the following conditions in urine are indicative of Diabetes Mellitus?
View Question
Which of the following would help in prevention of diuresis?
View Question
Match the following columns and select the correct option. Column-I Column-II (a) Floating Ribs
View Question
Match the following columns and select the correct option. Column-I Column-II (a) Organ of Cor
View Question
Match the following columns and select the correct option Column-I Column-II (a) Pituitary glan
View Question
Select the correct statement
View Question
The body of the ovule is fused within the funicle at
View Question
The plant parts which consist of two generations - one within the other(i) Pollen grains inside the anther (ii) Germinat
View Question
Meiotic division of the secondary oocyte is completed
View Question
Which of the following hormone levels will cause release of ovum (ovulation) from the graffian follicle?
View Question
Match the following columns and select the correct option. Column-I Column-II (A) Placenta
View Question
Select the option including all sexually transmitted diseases.
View Question
In which of the following techniques, the embryos are transferred to assist those females who cannot conceive?
View Question
Experimental verification of the chromosomal theory of inheritance was done by
View Question
Embryological support for evolution was disapproved by
View Question
Select the correct match
View Question
If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix i
View Question
Which of the following statements is correct?
View Question
The first phase of translation is
View Question
From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask
View Question
Flippers of Penguins and Dolphins are examples of
View Question
Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought
View Question
Match the following diseases with the causative organism and select the correct option Column-I Column-II
View Question
The infectious stage of Plasmodium that enters the human body is
View Question
Identify the wrong statement with reference to immunity
View Question
Which of the following is put into Anaerobic sludge digester for further sewage treatment?
View Question
Match the following columns and select the correct option. Column-I Column-II (a) Clostridium
View Question
In gel electrophoresis, separated DNA fragments can be visualized with the help of
View Question
Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (Bt) is resistant to
View Question
Identify the wrong statement with regard to Restriction Enzymes
View Question
The specific palindromic sequence which is recognized by EcoRl is
View Question
The sequence that controls the copy number of the linked DNA in the vector, is termed
View Question
Match the organism with its use in biotechnology (a) Bacillus thuringiensis (i) Cloning vector (b
View Question
Which of the following statements is not correct?
View Question
Match the following columns and select the correct option. Column-I Column-II (a) Bt cotton
View Question
The process of growth is maximum during
View Question
Secondary metabolites such as nicotine, strychnine and caffeine are produced by plants for their
View Question
Which of the following is not an attribute of a population?
View Question
In relation to Gross primary productivity and Net primary productivity of an ecosystem, which one of the following state
View Question
Match the trophic levels with their correct species examples in grassland ecosystem. (A) Fourth trophic level &nbsp
View Question
According to Robert May, the global species diversity is about
View Question
Which of the following regions of the globe exhibits highest species diversity?
View Question
Match the following (a) Inhibitor of catalytic activity (i) Ricin (b) Possess peptide bonds
View Question
Identify the wrong statement with reference to the gene ‘I’ that controls ABO blood groups.
View Question
Choose the correct pair from the following
View Question
How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with c
View Question
Name the enzyme that facilitates opening of DNA helix during transcription.
View Question
Identify the basic amino acid from the following
View Question
Identify the correct statement with regard to G1 phase (Gap 1) of interphase
View Question

Chemistry

Hydrolysis of sucrose is given by the following reaction.Sucrose + H2O ⇌ Glucose + FructoseIf the equilibrium constant (
View Question
Which one of the following has maximum number of atoms?
View Question
Which of the following is not correct about carbon monoxide?
View Question
The calculated spin only magnetic moment of Cr2+ ion is?
View Question
Which of the following is a basic amino acid?
View Question
Paper chromatography is an example of :
View Question
For the reaction, 2Cl(g) $$ \to $$ Cl2(g), the correct option is :
View Question
Urea reacts with water to form A which will decompose to form B. B when passed through Cu2+ (aq), deep blue colour solut
View Question
On electrolysis of dil. sulphuric acid using Platinum (Pt) electrode, the product obtained at anode will be :
View Question
An increase in the concentration of the reactants of a reaction leads to change in :
View Question
Which of the following alkane cannot be made in good yield by Wurtz reaction?
View Question
Identify the incorrect statement.
View Question
A tertiary butyl carbocation is more stable than a secondary butyl carbocation because of which of the following?
View Question
Which of the following is the correct order of increasing field strength of ligands to form coordination compounds?
View Question
Which of the following set of molecules will have zero dipole moment?
View Question
Match the following and identify the correct option. (A) CO(g) + H2(g) (i) Mg(HCO3)2 + Ca(HCO3)2
View Question
The number of protons, neutrons and electrons in 17571Lu, respectively, are :
View Question
The number of Faradays(F) required to produce 20 g of calcium from molten CaCl2 (Atomic mass of Ca = 40 g mol-1) is :
View Question
Elimination reaction of 2-Bromo-pentane to form pent-2-ene is :(A) $$\beta $$-Elimination reaction(B) Follows Zaitsev ru
View Question
Identify the correct statements from the following :(A) CO2(g) is used as refrigerant for ice-cream and frozen food.(B)
View Question
Identify the incorrect match. Name IUPAC Official Name (A) Unnilunium (i)
View Question
The freezing point depression constant (Kr) of benzene is 5. 12 K kg mol-1. The freezing point depression for the soluti
View Question
What is the change in oxidation number of carbon in the following reaction?CH4(g) + 4Cl2(g) $$ \to $$ CCl4(l) + 4HCl(g)
View Question
The rate constant for a first order reaction is 4.606 $$ \times $$ 10-3 s-1. The time required to reduce 2.0 g of the re
View Question
The mixture which shows positive deviation from Raoult's law is :
View Question
Which of the following oxoacid of sulphur has $$ - $$ O$$ - $$ O$$ - $$ linkage?
View Question
Sucrose on hydrolysis gives :
View Question
Find out the solubility of Ni(OH)2 in 0.1M NaOH. Given that the ionic product of Ni(OH)2 is 2 $$ \times $$ 10-15.
View Question
The correct option for free expansion of an ideal gas under adiabatic condition is :
View Question
Which of the following amine will give the carbylamine test?
View Question
Identify compound X in the following sequence of reactions :
View Question
Reaction between benzaldehyde and acetophenone in presence of dilute NaOH is known as :
View Question
Identify a molecule which does not exist.
View Question
As alkene on ozonolysis gives methanal as one of the product, Its structure is :
View Question
Anisole on cleavage with Hl gives :
View Question
Match the following : Oxide Nature (A) CO (i) Basic (B) BaO
View Question
Reaction between acetone and methylmagnesium chloride followed by hydrolysis will give :
View Question

Physics

Assume that light of wavelength 600 nm is coming from a star. The limit of resolution of telescope whose objective has a
View Question
A short electric dipole has a dipole moment of 16 $$ \times $$ 10-9 Cm. The electric potential due to the dipole at a po
View Question
A ray is incident at an angle of incidence i on one surface of a small angle prism (with angle of prism A) and emerges n
View Question
A body weighs 72 N on the surface of the earth. What is the gravitational force on it, at a height equal to half the rad
View Question
For which one of the following, Bohr model is not valid?
View Question
A capillary tube of radius r is immersed in water and water rises in it to a height h. The mass of the water in the capi
View Question
A screw gauge has least count of 0.01 mm and there are 50 divisions in its circular scale.The pitch of the screw gauge i
View Question
An iron rod of susceptibility 599 is subjected to a magnetizing field of 1200 A m-1. The permeability of the material of
View Question
The phase difference between displacement and acceleration of a particle in a simple harmonic motion is :
View Question
The energy equivalent of 0.5 g of a substance is :
View Question
A resistance wire connected in the left gap of a metre bridge balances a 10 $$\Omega $$ resistance in the right gap at
View Question
The average thermal energy for a mono-atomic gas is : (kB is Boltzmann constant and T absolute temperature)
View Question
The ratio of contributions made by the electric field and magnetic field components to the intensity of and electromagne
View Question
A ball is thrown vertically downward with a velocity of 20 m/s from the top of a tower. It hits the ground after some ti
View Question
A long solenoid of 50 cm length having 100 turns carries a current of 2.5 A. The magnetic field at the centre of the sol
View Question
Taking into account of the significant figures, what is the value of $$9.99 m - 0.0099m$$?
View Question
Light of frequency 1.5 times the threshold frequency is incident on a photosensitive material. What will be the photoele
View Question
The color code of a resistance is given below : The values of resistance and tolerance, respectively, are
View Question
Two particles of mass 5 kg and 10 kg respectively are attached to the two ends of a rigid rod of length 1 m with negligi
View Question
The mean free path for a gas, with molecular diameter d and number density n can be expressed as :
View Question
A cylinder contains hydrogen gas at pressure 249 kPa and temperature 27$$^\circ $$CIts density is : (R = 8.3 J mol-1 K-1
View Question
A charged particle having drift velocity 7.5$$ \times $$10-4 ms-1 in an electric field of 3$$ \times $$10-10 Vm-1 has a
View Question
Dimensions of stress are :
View Question
A wire of length L, are of cross section A is hanging from a fixed support. The length of the wire changed to L1 when ma
View Question
In a guitar, two strings A and B made of same material are slightly out of tune and produce beats of frequency 6 Hz. Whe
View Question
Two bodies of mass 4 kg and 6 kg are tied to the ends of a massless string. The string passes over a pulley which is fri
View Question
The capacitance of a parallel plate capacitor with air as medium is 6$$\mu $$F. With the introduction of a dielectric me
View Question
In Young's double slit experiment, if the separation between coherent sources is halved and the distance of the screen
View Question
Light with an average flux of 20 W/cm2 falls on a non-reflecting surface at normal incidence having surface area 20 cm2.
View Question
Which of the following graph represents the variation of resistivity ($$\rho $$) with temperature (T) for copper?
View Question
The quantities of heat required to raise the temperature of two solid copper spheres of radii r1 and r2 (r1 = 1.5r2) thr
View Question
Find the torque about the origin when a force of 3 $$\hat j$$ N acts on a particle whose position vector is 2 $$\hat k$
View Question
In a certain region of space with volume 0.2 m3, the electric potential is found to be 5 V throughout. The magnitude of
View Question
The Brewster's angle ib for an interface should be :
View Question
The increase in the width of the depletion region in a p-n junction diode is due to :
View Question
A spherical conductor of radius 10 cm has a charge of 3.2 $$ \times $$ 10-7 C distributed uniformly. That is the magnetu
View Question
The energy required to break one bond in DNA is 10-20 J. This value in eV is nearly :
View Question
A 40 $$\mu $$F capacitor is connected to a 200 V. 50 Hz ac supply. The rms value of the current on the circuit is, nearl
View Question
An electron is accelerated from rest through a potential difference of V volt. If the de-Broglie wavelength of the elect
View Question
Two cylinders A and B of equal capacity are connected to each other via a stop cock. A contains an ideal gas at standard
View Question
For the logic circuit shown, the truth table is :
View Question
The solids which have the negative temperature coefficient of resistance are :
View Question
A series LCR circuit is connected to an ac voltage source. When L is removed from the circuit, the phase difference betw
View Question
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12