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NEET 2020 Phase 1

Exam Held on Sun Sep 13 2020 14:00:00 GMT+0000 (Coordinated Universal Time)
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Biology

Which of the following is correct about viroids?
Which of the following pairs is of unicellular algae?
Floridean starch has structure similar to
Strobili or cones are found in
Bilaterally symmetrical and acoelomate animals are exemplified by
Which of the following statements are true for the phylum-Chordata<br><br> (i) I...
If the head of cockroach is removed, it may live for few days because
Match the following columns and select the correct option : <br><style type="tex...
Match the following columns and select the correct option : <br><br><style type=...
Ray florets have
The ovary is half inferior in:
Identify the incorrect statement.
The roots that originate from the base of the stem are
The transverse section of a plant shows following anatomical features : <br><br>...
Cuboidal epithelium with brush border of microvilli is found in
Which of the following statements about inclusion bodies is incorrect?
Which is the important site of formation of glycoproteins and glycolipids in euk...
Identify the substances having glycosidic bond and peptide bond, respectively in...
Which one of the following is the most abundant protein in the animals?
Some dividing cells exit the cell cycle and enter vegetative inactive stage. Thi...
Match the following with respect to meiosis<br><br> (A) Zygotene&nbsp;&nbsp;&nbs...
Dissolution of the synaptonemal complex occurs during
The process responsible for facilitating loss of water in liquid form from the t...
Match the following concerning essential elements and their functions in plants<...
The product(s) of reaction catalyzed by nitrogenase in root nodules of leguminou...
In light reaction, plastoquinone facilitates the transfer of electrons from
The oxygenation activity of RuBisCo enzyme in photorespiration leads to the form...
The number of substrate level phosphorylations in one turn of citric acid cycle ...
Which of the following is not an inhibitory substance governing seed dormancy?
Name the plant growth regulator which upon spraying on sugarcane crop, increases...
Identify the correct statement with reference to human digestive system.
The enzyme enterokinase helps in conversion of
Select the correct events that occur during inspiration.<br> (i) Contraction of ...
Identify the wrong statement with reference to transport of oxygen.
Match the following columns and select the correct option. <table style="width:1...
The QRS complex in a standard ECG represents
Presence of which of the following conditions in urine are indicative of Diabete...
Which of the following would help in prevention of diuresis?
Match the following columns and select the correct option. <table style="width:1...
Match the following columns and select the correct option. <table style="width:1...
Match the following columns and select the correct option <table style="width:10...
Select the correct statement
The body of the ovule is fused within the funicle at
The plant parts which consist of two generations - one within the other<br>(i) P...
Meiotic division of the secondary oocyte is completed
Which of the following hormone levels will cause release of ovum (ovulation) fro...
Match the following columns and select the correct option. <table style="width:1...
Select the option including all sexually transmitted diseases.
In which of the following techniques, the embryos are transferred to assist thos...
Experimental verification of the chromosomal theory of inheritance was done by
Embryological support for evolution was disapproved by
Select the correct match
If the distance between two consecutive base pairs is 0.34 nm and the total numb...
Which of the following statements is correct?
The first phase of translation is
From his experiments, S.L. Miller produced amino acids by mixing the following i...
Flippers of Penguins and Dolphins are examples of
Which of the following refer to correct example(s) of organisms which have evolv...
Match the following diseases with the causative organism and select the correct ...
The infectious stage of Plasmodium that enters the human body is
Identify the wrong statement with reference to immunity
By which method was a new breed ‘Hisardale’ of sheep formed by using Bikaneri ew...
Which of the following is put into Anaerobic sludge digester for further sewage ...
Match the following columns and select the correct option. <table style="width:1...
In gel electrophoresis, separated DNA fragments can be visualized with the help ...
Bt cotton variety that was developed by the introduction of toxin gene of Bacill...
Identify the wrong statement with regard to Restriction Enzymes
The specific palindromic sequence which is recognized by EcoRl is
The sequence that controls the copy number of the linked DNA in the vector, is t...
Match the organism with its use in biotechnology<br><br> <table style="width:100...
Which of the following statements is not correct?
Match the following columns and select the correct option. <table> <thead> <tr...
The process of growth is maximum during
Secondary metabolites such as nicotine, strychnine and caffeine are produced by ...
Which of the following is not an attribute of a population?
In relation to Gross primary productivity and Net primary productivity of an eco...
Match the trophic levels with their correct species examples in grassland ecosys...
According to Robert May, the global species diversity is about
Which of the following regions of the globe exhibits highest species diversity?
Snow-blindness in Antarctic region is due to
Montreal protocol was signed in 1987 for control of
Match the following<br><br> <table style="width:100%"> <tbody> <tr> <td>(a...
Identify the wrong statement with reference to the gene ‘I’ that controls ABO bl...
Choose the correct pair from the following
How many true breeding pea plant varieties did Mendel select as pairs, which wer...
In water hyacinth and water lily, pollination takes place by :
Name the enzyme that facilitates opening of DNA helix during transcription.
Identify the basic amino acid from the following
Goblet cells of alimentary canal are modified from
Identify the correct statement with regard to G<sub>1</sub> phase (Gap 1) of int...

Chemistry

Hydrolysis of sucrose is given by the following reaction.<br>Sucrose + H<sub>2</...
Which one of the following has maximum number of atoms?
Which of the following is not correct about carbon monoxide?
The calculated spin only magnetic moment of Cr<sup>2+</sup> ion is?
Which of the following is a natural polymer?
Which of the following is a basic amino acid?
A mixture of N<sub>2</sub> and Ar gases in a cylinder contains 7g of N<sub>2</su...
Paper chromatography is an example of :
For the reaction, 2Cl(g) $$ \to $$ Cl<sub>2</sub>(g), the correct option is :
Urea reacts with water to form A which will decompose to form B. B when passed t...
On electrolysis of dil. sulphuric acid using Platinum (Pt) electrode, the produc...
An element has a body centered cubic (bcc) structure with a cell edge of 288 pm....
An increase in the concentration of the reactants of a reaction leads to change ...
Which of the following alkane cannot be made in good yield by Wurtz reaction?
Identify the incorrect statement.
Which of the following is cationic detergent?
A tertiary butyl carbocation is more stable than a secondary butyl carbocation b...
Which of the following is the correct order of increasing field strength of liga...
Identify the correct statement from the following :
Which of the following set of molecules will have zero dipole moment?
Match the following and identify the correct option.<br><table> <thead> <tr> ...
The number of protons, neutrons and electrons in <sup>175</sup><sub>71</sub>Lu, ...
The number of Faradays(F) required to produce 20 g of calcium from molten CaCl<s...
Elimination reaction of 2-Bromo-pentane to form pent-2-ene is :<br>(A) $$\beta $...
Identify the correct statements from the following :<br>(A) CO<sub>2</sub>(g) is...
Identify the incorrect match.<br><table> <thead> <tr> <th>Name</th> <t...
The freezing point depression constant (K<sub>r</sub>) of benzene is 5. 12 K kg ...
What is the change in oxidation number of carbon in the following reaction?<br>C...
The rate constant for a first order reaction is 4.606 $$ \times $$ 10<sup>-3</su...
The mixture which shows positive deviation from Raoult's law is :
Which of the following oxoacid of sulphur has $$ - $$ O$$ - $$ O$$ - $$ linkage?...
Measuring Zeta potential is useful in determining which property of colloidal so...
Sucrose on hydrolysis gives :
Find out the solubility of Ni(OH)<sub>2</sub> in 0.1M NaOH. Given that the ionic...
The correct option for free expansion of an ideal gas under adiabatic condition ...
Which of the following amine will give the carbylamine test?
Identify compound X in the following sequence of reactions :<br><br> <picture><s...
Reaction between benzaldehyde and acetophenone in presence of dilute NaOH is kno...
Identify a molecule which does not exist.
As alkene on ozonolysis gives methanol as one of the product, Its structure is :...
The following metal ion activities many enzymes, participates in the oxidation o...
Anisole on cleavage with Hl gives :
Match the following : <br><table> <thead> <tr> <th>Oxide</th> <th></th...
HCl was passed through A solution of CaCl<sub>2</sub>, MgCl<sub>2</sub> and NaCl...
Reaction between acetone and methylmagnesium chloride followed by hydrolysis wil...

Physics

Assume that light of wavelength 600 nm is coming from a star. The limit of resol...
When a uranium isotope $$_{92}^{235}U$$ is bombarded with a neutron, it generat...
A short electric dipole has a dipole moment of 16 $$ \times $$ 10<sup>-9</sup> C...
A ray is incident at an angle of incidence i on one surface of a small angle pri...
A body weighs 72 N on the surface of the earth. What is the gravitational force ...
For which one of the following, Bohr model is not valid?
A capillary tube of radius r is immersed in water and water rises in it to a hei...
A screw gauge has least count of 0.01 mm and there are 50 divisions in its circu...
An iron rod of susceptibility 599 is subjected to a magnetizing field of 1200 A ...
The phase difference between displacement and acceleration of a particle in a si...
The energy equivalent of 0.5 g of a substance is :
A resistance wire connected in the left gap of a metre bridge balances a 10 $$\O...
The average thermal energy for a mono-atomic gas is : (k<sub>B</sub> is Boltzman...
The ratio of contributions made by the electric field and magnetic field compone...
A ball is thrown vertically downward with a velocity of 20 m/s from the top of a...
A long solenoid of 50 cm length having 100 turns carries a current of 2.5 A. The...
Taking into account of the significant figures, what is the value of $$9.99 m - ...
Light of frequency 1.5 times the threshold frequency is incident on a photosensi...
The color code of a resistance is given below :<br> <picture><source media="(max...
Two particles of mass 5 kg and 10 kg respectively are attached to the two ends o...
For transistor action, which of the following statements is <b>correct</b>?
The mean free path for a gas, with molecular diameter d and number density n can...
A cylinder contains hydrogen gas at pressure 249 kPa and temperature 27$$^\circ ...
A charged particle having drift velocity 7.5$$ \times $$10<sup>-4</sup> ms<sup>-...
Dimensions of stress are :
A wire of length L, are of cross section A is hanging from a fixed support. The ...
In a guitar, two strings A and B made of same material are slightly out of tune ...
Two bodies of mass 4 kg and 6 kg are tied to the ends of a massless string. The ...
The capacitance of a parallel plate capacitor with air as medium is 6$$\mu $$F. ...
In Young's double slit experiment, if the separation between coherent sources is...
Light with an average flux of 20 W/cm<sup>2</sup> falls on a non-reflecting surf...
Which of the following graph represents the variation of resistivity ($$\rho $$)...
The quantities of heat required to raise the temperature of two solid copper sph...
Find the torque about the origin when a force of 3 $$\hat j$$ N acts on a parti...
In a certain region of space with volume 0.2 m<sup>3</sup>, the electric potenti...
The Brewster's angle i<sub>b</sub> for an interface should be :
The increase in the width of the depletion region in a p-n junction diode is due...
A spherical conductor of radius 10 cm has a charge of 3.2 $$ \times $$ 10<sup>-7...
The energy required to break one bond in DNA is 10<sup>-20</sup> J. This value i...
A 40 $$\mu $$F capacitor is connected to a 200 V. 50 Hz ac supply. The rms value...
An electron is accelerated from rest through a potential difference of V volt. I...
Two cylinders A and B of equal capacity are connected to each other via a stop c...
For the logic circuit shown, the truth table is :<br> <picture><source media="(m...
The solids which have the negative temperature coefficient of resistance are :
A series LCR circuit is connected to an ac voltage source. When L is removed fro...

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