ETEA MDCAT 2018

The edible part of Morchella esculanta is:

Which of the following is not a fern?

In nitrogen-fixing bacteria, the nitrogenase complex is sensitive to:

Umbel of umbels is present in:

Darwins finches are found in:

Goblet cells are:

Venous flower basket belong to which group of organisms:

Which one of the following is not an exclusive trait of arthropoda?

Chymotrypsin acts upon:

The common name of rubella is:

Which of the following is not isotonic to sea water?

Which one of the following is not an insect?

Alcoholic fermentation is the sole mean of respiration in:

Male having Down's syndrome have sex chromosomes:

The living phloem, cork and cork cambium is collectively called:

Common name of the Loligo pealeii is:

The main difference between catalysts and enzymes is:

The first hormone to be discovered was:

Which factor is not involved in release of Oxytocin in females:

A condition called Goose pimples, are caused by:

Locomotary organ in leech is called?

Expiratory centre in medulla is:

Syphilis is caused by:

Tornaria larva resembles with:

Taxus baccata is the botanical name of:

Depolarization of neuron is characterized by:

The first successful surgery of heart was performed by Dr. Ludwig by repairing a wound on which part:

The number of Hyoid bone in human skull region is:

A heterozygote fruit fly has more florescent pigments in their eyes than a wild homozygote fruit fly, this is an example of:

Mg++ and Ca++ are excreted in fishes through:

How many sperms are produced from fifty secondary spermatocyte?

An autoimmune disorders in which stiffness and inflammation of vertebrae occurs is called as:

The stage of plasmodium life cycle not related to human body is:

Which process of cell division is involved in gametes formation in Funaria:

Which of the following is the most economically important plant family?

Closed vascular system is the characteristic of:

For defense against virus attack, body produces:

Which one of the following is a shrub?

The study of fishes is:

In protein synthesis the initiator tRNA carrying amino acid methionine land on which site of ribosome:

Short life cycle is a plant adaptation to survive in:

Which of the following is not the part of first line of defense?

Polyploidy is more common in:

Over eating psychological disorder is called:

The following statement is true for the absorption spectra of photosynthesis:

Which of the following is absent in C4 Plants:

Baroceptors are the sensors in body responsible for determination of:

Piriformis syndrome is associated with which of the following disorder:

A vein differs from an artery in having:

The first stage in development of Xerosere is appearance of:

The center of porphyrin in the head region of hemoglobin is occupied by:

XO in drosophila result in sterile:

All of the following acts as cloning vector except:

Lignin could not be expected in which part of the plant cell wall:

Which one of the following is not a draught animal?

In E.C.G QRS complex represent:

Vomit centre is located in:

Which of the following is a summer variety?

The organism developed with two heads and one trunk is called:

This is used as a substrate during the formation of alcohol:

During the formation of aqueous solution of any electrolyte:

By the absorption of visible light, which of the following compounds gives smogy air and has brown tint?

According to M.O theory the number of molecular orbitals in O₂ are:

For the reaction,CO(g) + (1/2)O2(g) ⟶ CO2(g)

Initially one mole each N2 and O2 were made to react as,If at equilibrium 0 ∙ 25 moles of O2 is present the equilibrium concentration of NO will be:

The compound of manganese with zero reducing power is:

Chemical reactions associated with hydro-carbons is/are:

The cation that distort the electron cloud of NO3− ion more and facilitates its decomposition is:

Three reactions are giveni. H₂SO₄ + 2HF ⟶ F₂ + SO₂ + 2H₂O

ii. H₂SO₄ + 2HBr ⟶ Br₂ + SO₂ + 2H₂O

iii. H₂SO₄ + 8HI ⟶ 4I₂ + H₂S + 4H₂O

The strongest reducing agent in these reactions is:

The volume of 𝐶𝑂2 produced by heating 33.5𝑔 𝐿𝑖2𝐶𝑂3 at room temperature and pressure is (𝑀𝑟 𝐿𝑖2𝐶𝑂3 = 67𝑔/𝑚𝑜𝑙):

The amount of methane in biogas is approximately:

The Fridel crafts catalyst “𝐴𝑙𝐶𝑙3” used in the substitution reactions of Benzene is good:

Whenever nitrile group is hydrolysed (𝑑𝑖𝑙 𝐻𝐶𝑙) with water it always produces:

If the overlap of sp3 hybrid orbitals in carbon atoms is smaller, the bond so formed is:

Students were heating CaCO3 in an open container to produce CO2 gas,CaCO3(s) ⟶ CaO(s) + CO2(g)If we increase pressure on this system the:

The mass of 𝑁𝑎𝑂𝐻 needed to prepare 0.2 molal solution in 500𝑔 pure water at 4℃ is:

We have three test tubes having aqueous solutions of Ca(NO₃)₂, Ba(NO₃)₂ and K₂CO₃ respectively. On addition of dil H₂SO₄. Which test tube solution turns milky?

If the required excitation voltage is given, for which element the x − rays spectrum consists of three spectral lines i.e. Kα Kβ Lα :

Reactants in a transition state:

Compound in which addition takes place through Markovnikov’s rule is:

The reducing agent in the reaction given, 𝐾𝑀𝑛𝑂₄ + 𝐾𝐼 + 𝐻₂𝑆𝑂₄ ⟶ 𝑀𝑛𝑆𝑂₄ + 𝐾₂𝑆𝑂₄ +𝐼₂ + 𝐻₂𝑂 is:

SiO₂ is the only oxide that reacts with:

Specie with dipole moment equal to zero is:

Evaporation depends upon:

Cyclic alkanes with greater angle strain are always:

The compound which you think is not the derivative of acetic acid is:

The empirical formula of the compound was found to be 𝐶𝐻2𝑂. If the molar mass of the compound is 150𝑔/𝑚𝑜𝑙. The molecular formula of the compound is:

The nuclei you think is invisible in NMR spectroscopy is:

Elements of which block of the periodic table shows variable oxidation state?

Whenever Pb shows inert pair effect it always form:

Aqueous KOH causes SN-reaction in alkylhalide. On which of the following alkylhalides KOHaq would like to attack easily.

During the formation of addition polymers, which smaller molecules you think are eliminated:

The compound with more than 10% solubility in pure water is:

The elevation in boiling point ∆𝑇𝑏 is equal to ebullioscopic constant 𝐾𝑏 when the Molarity (𝑀) of the solution is:

Students were decomposing 𝐶𝑎𝐶𝑂3 placed in a China dish by heating using burner in the laboratory. The “system” in this experiment is:

The equation used to describe the behavior of ideal gases under standard conditions is:

The energy of electron in the first excited state of Hydrogen atom in J/atom is:

An unknown gas diffuses 5 times slower than that of H2. The molecular mass of the unknown gas is:

The outer electronic configuration of Cu+ ion is 4S03d10 with this configuration the aqueous solution of copper (I) compound is:

The amine which is more reactive towards 𝐻𝐼 is:

Read the statement and choose the option correctly.

The chelating ligand out of the following is:

The process that can be both endothermic and exothermic out of the following is:

The aqueous solution of which of the following electrolyte will conduct electric current to large extent:

Amino acid leucine is coded by how many codons:

If the pH of the solution is 9 its OH− ions concentration is:

The minimum energy below which no reaction occur in reactant molecules is:

𝑂𝐻− + 𝐶2𝐻5 − 𝐼 ⟶ 𝐶2𝐻5 − 𝑂𝐻 + 𝐼− One of the species in the above reaction is a substrate. It is:

Regarding reactivity of the compounds having carbonyl group. The most reactive compound out of the following is:

The oxidation state of platinum in [Pt(NH₃)₄(NO₂)Cl]SO₄ is:

The type of isomerism present in the compound given, is:

Addition of soluble impurities into a liquid and solid respectively causes:

The alcohol given 𝐶𝐻3 − 𝐶𝐻2 − 𝐶(𝐶𝐻3)2 −𝑂𝐻. If oxidized with a strong oxidizing agent given:

Students calculated the cell voltage for the reaction, 𝐵𝑟₂ + 2𝑁𝑎𝐶𝑙 ⟶ 2𝑁𝑎𝐵𝑟 + 𝐶𝑙₂ through the formula 𝐸°𝑐𝑒𝑙𝑙= 𝐸°𝑟𝑒𝑑+ 𝐸°𝑜𝑥𝑑 the answer was negative. It means that:

Unhybrid "p" orbitals on linear overlap:

In the compound CO₂ and H₂O the hybridization in oxygen is respectively:

Hydrogen bonding in H − F is stronger than H2O and NH3. The highest boiling point among the three is of:

Henderson-Hasselbalch equation is used to calculate the pH of a buffer solutions. The correct representation of the equation is:

The most reactive compound out of the following is:

The non-carbonyl compound out of the following is:

Two wave sources are oscillating in phase. Each source produces a wave of wavelength 𝜆. The two waves from the sources meet at point 𝑋 with a phase difference of 90°.What is a possible difference in the distances from the two wave sources to point 𝑋?

An electron is projected horizontally from south to north in a uniform horizontal magnetic field acting from west to east. The direction along which it will be deflected is:

What is the strain energy per unit volume of a rod made from this metal when the strain of the rod is 0.010?

A typical mobile phone battery has an e.m.f. of 5.0 V and an internal resistance of 200 mΩ.What is the terminal P.D. of the battery when it supplies a current of 500 mA?

A diameter 'd' and length 'l' wire hangs vertically from a fixed point. The wire is extended by hanging a mass 'M' on its end. The Young modulus of the wire is 'E'. The acceleration of free fall is 'g'. Which equation is used to determine the extension 'x' of the wire?

The reciprocal of resistivity is called:

Doubly ionized atoms 𝑋 and 𝑌 of two different elements are accelerated through the same P.D. on entering a uniform magnetic field they describe circular paths of radii 𝑅1 and 𝑅2. The masses of 𝑋 and 𝑌 are in the ratio of:

The efficiency of a heat engine working between the freezing point and the boiling point of water is near to:

The maximum energy of the electrons released in photocell is independent of:

The ionization potential of a hydrogen atom is 13.6V what will be the energy of the electron in the second orbit?

Orange light in a vacuum has a wavelength of 600 nm. What is the frequency of this light?

The speed v of a liquid leaving a tube depends on the change in pressure ΔP and the density ρ of the liquid. The speed is given by the equation. where k is a constant that has no units. What is the value of n?

A sound wave has a frequency of 2500 H_z and a speed of 1500 m s−1. What is the shortest distance from a point of maximum pressure in the wave to a point of minimum pressure?

A thin horizontal plate of area 0.036 m² is beneath the surface of a liquid of density 930 kg m−3. The force on one side of the plate due to the pressure of the liquid is 290 N. What is the depth of the plate beneath the surface of the liquid?

An electron and a proton enter a magnetic field with equal velocities which one of them experiences more force:

On a planet, a vertically-launched projectile takes 12.5 s to return to its starting position. The projectile gains a maximum height of 170 m. The planet does not have an atmosphere. What is the acceleration of free fall on this planet?

When we are measuring the internal resistance of a cell by potentiometer, the emf of the battery must be greater than the :

What is NOT true of 2 forces that give rise to a couple?

What is the magnitude of a point charge which produces an electric field of 2 N/C at a distance of 60 cm?

A man has a mass of 80 kg. He ties himself to one end of a rope which passes over a single fixed pulley. He pulls on the other end of the rope to lift himself up at an average speed of 50 cm s−1. What is the average useful power at which he is working?

Which of the following series lie in the visible region?

The inward and outward electric flux from a closed surface is respectively 8×103units and 4×103 units, then the net charge inside the closed surface is:

The paratrooper of mass 80 𝑘𝑔 descends vertically at a constant velocity of 3 𝑚 𝑠−1taking the acceleration of free fall as 10 𝑚 𝑠−2. Find out what is the net force acting on him?

A man stands in a lift that is accelerating vertically downwards. Which statement describes the force exerted by the man on the floor?

The instantaneous current in a circuit is given by I = √2 sin(ωt + ∅) ampere what is the rms value of the current?

The activity of a certain nuclide is governed by the relation ∆𝑁/∆𝑡= −𝜆𝑁 where 𝜆 = 2.4 × 10−8𝑠−1. What is the half-life of the nuclide?

The charge on the electron and proton is reduced to half. If the present value of Rydberg constant is 𝑅, then the new value of Rydberg constant will be:

Which expression using SI base units is equivalent to the volt?

A metal cube with sides of length “𝑎” has electrical resistance 𝑅 between opposite faces. What is the resistance between the opposite faces of a cube of the same metal with sides of length 3𝑎?

The power loss 𝑃 in a resistor is calculated using the formula: 𝑃 =𝑉2/R The uncertainty in the potential difference 𝑉 is 3% and the uncertainty in the resistance 𝑅 is 2%. What is the uncertainty in 𝑃?

To determine the resistance of a voltmeter by discharging a capacitor through it, the instantaneous voltage is then given by the relation:

A diffraction grating is used to measure the wavelength of monochromatic light, as shown in the diagram. The spacing of the slits in the grating is 1.00 × 10−6m. The angle between the first-order diffraction maxima is 60.0°. What is the wavelength of the light?

An electromagnetic wave travels in a straight line through a vacuum. The wave has a frequency of 6.0 THz. What is the number of wavelengths in a distance of 1.0 m along the wave?

The number of electrons in one coulomb of charge are:

Two springs of spring constant 𝐾1 and 𝐾2 are arranged in parallel and a body of mass 𝑚 is attached to it then calculate the time period of the system:

In Simple Harmonic Motion the acceleration of the particle is zero when its:

Which combination of up (u) and down (d) quarks forms a neutron?

What is the momentum of X −rays having wavelength 0.001nm?

There are two charges +2𝜇𝐶 and -3𝜇𝐶. The ratio of the force acting on them will be:

A filament lamp has a resistance of 180 Ω when the current in it is 500mA. What is the power dissipated in the lamp?

A mass m is suspended from a spring of spring constant k. The angular frequency of oscillations of the spring is:

Four resistors are connected in a square as shown. The resistance may be measured between any two junctions. Between which two junctions is the measured resistance greatest?

How many cubic nanometres, nm³, are in a cubic micrometer, μm³?

Two railway trucks of masses m and 3m move towards each other in opposite directions with speeds 2v and v respectively. These trucks collide and stick together. What is the speed of the trucks after the collision?

In a uniform electric field, which statement is correct?

A stationary sound wave has a series of nodes. The distance between the first and the sixth node is 30.0 cm. What is the wavelength of the sound wave?

Which list shows electromagnetic waves in order of increasing frequency?

A transverse wave travels along a rope. The graph shows the variation of the displacement of the particles in the rope with distance along it at a particular instant. At which distance along the rope do the particles have maximum upwards velocity?

Which of the following will be a better shield against 𝛾-rays?

The nuclear equation shown has a term missing. What is represented by the missing term?

The amount of heat required to raise the temperature of 10 moles of water from 70𝐾 to 80𝐾 (molar heat capacity of water 75.24𝐽) is:

To determine Young’s modulus of a material of a given wire of length 𝐿 we use:

The Young’s modulus of a given rod of uniform length 𝐿 is given by the relation:

Two radioactive samples 𝑆1 and 𝑆2 have half-lives of 3 hours and 7 hours respectively. If they have the same activity at certain instant 𝑡, what is the ratio of the number of atoms of 𝑆1 to 𝑆2 at instant 𝑡?

The rest mass of Photon is 𝑚𝑜. Its linear momentum, when it moves with the speed equal to half of the speed of light in space, will be:

A uniform horizontal footbridge is 12 m long and weighs 4000 N. It rests on two supports X and Y as shown. A man of weight 600 N is at a distance of 4 m from support X. What is the upward force on the footbridge from support X?

Which particle is a fundamental particle?

A radioactive isotope has a half-life of 3 days. The time after which its activity is reduced to 6.25% of its original activity is:

He said to me, “traitor”.[Choose the correct indirect speech:]

I am afraid we have not got ____ sugar for making tea.

He said, "What is the matter"?[Choose the correct indirect speech:]

I had an unexpected guest today. ____ my old classmate.

‘To the letter’ means:

She said, “What a lovely dress it is.”[Choose the correct indirect speech:]

Out of the following indicate the matching item for PUPPIES.

Don’t poke your nose ____ my affairs

Enlarge upon’ means:

It’s raining cats and dogs. So there are ____ cars on the road today.

Choose the related word for Broom on the analogy of Water : Splash.

My mother offered me milk. But for my life, I could not drink it.[The underlined expression means:]

Which one of the following is opposite in meaning to the word SYMPATHY?

The teacher said, “Amna, watch your steps.”[Choose the correct indirect speech:]

Saba was sick on the bus.[The underlined prepositional phrase functions as a ____ in this sentence:]

Which way shall we go?[The underlined word is:]

You are called names by him.[Choose the correct voice:]

A person who leaves his country and settles in another country is called:

Choose the related word for Rat on the analogy of Elephant : Stride.

Which of the following is correct in all respects?