MP-D2 – LETS

MDCAT PREP DAY 02

SYLLABUS

QUIZ OF THE DAY 02

MDCAT PREP DAY 02

YES YOU CAN CRACK THE MDCAT BY ALLAH’S WILL. JUST BE LOYAL TO HOLY PROPHET ﷺ

Most abundant organic biomolecules in nature is:

BIOLOGY HAS STARTED

Proteins Lipids Carbohydrates Water

Temperature of water rises and falls more slowly as compared to other liquids due to its ____ property. Polar nature Heat of vaporization Specific Heat Ionization

The amount of heat required to raise the temperature of 01g of water by 01 degree: Specific Heat capacity Heat of vaporization Electronegativity Electron affinity

The amount of heat absorbed when a liquid changes into gas is expressed as calorie per gram vaporized is called: Heat capacity Specific heat Heat of vaporization Latent heat

Predict the product of following reaction: Sucrose Maltose Lactose Galactose

In straight chain structure of glucose, all carbons contain hydroxyl group except carbon number: 1 3 5 6

General formula of carbohydrates is: Cn(H2O) (CH2O)n Cx(H2O)y Cn(H2O)n-1

Milk sugar is a/an: Monosaccharide Oligosaccharide Disaccharide Polysaccharide

These act as reducing sugars: Glucose and fructose Sucrose and maltose All disaccharides All polysaccharides

Which of the following types of water is safe for human consumption without treatment? Raw water Tap water Distilled water Spring water

When a very heavy ball ‘B1’ collide with a stationary target ‘B2’ of negligible mass, after collision the final velocity of ball ‘B2’ will

PHYSICS HAS STARTED

become zero become half become doubled as compared to B1 same as the B1

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? v/4 v/2 v 5v/4

A ball of mass 2 kg travelling at 8 ms-1 strikes a ball of mass 4 kg travelling at 2 ms-1. Both balls are moving along the same straight line as shown After collision, both balls move at the same velocity v. What is the magnitude of the velocity v? 4 m/s 5 m/s 6 m/s 8 m/s

A 10 kg object collides with stationary 5 kg object and after collision they stick together and move forward with velocity 4ms−1. What is the velocity with which the 10 kg object hit the second one? 6m/s 12m/s 8m/s 10m/s

Two similar spheres, each of mass m and travelling with speed v, are moving towards each other. The spheres have a head on elastic collision. Which statement is correct? The spheres stick together on impact The total kinetic energy after impact is mv The total momentum before impact is 2 mv The total kinetic energy before impact is zero

A body is thrown horizontally from the top of a tower of height 5 m. It touches the ground at a distance of 10 m from the foot of the tower. The initial velocity of the body is (g = 10 ms-2) 2.5 m/s 5m/s 10 m/s 20 m/s

A projectile is projected upwards with an angle of with x-axis at shown in the figure such that its K.E at projection is. What will be its K.E at the top? 0J 100 J 25 J 50 J

A parabolic path for a projectile is shown in the figure. At which point acceleration is minimum? B A C Not possible

An aero plane is flying horizontally with a velocity of 10 m/s and at a height of 1960 m. When it is vertically above a point A on the ground, a bomb is released from it. The bomb strikes the ground at point B. The distance AB is (ignoring air resistance) 100 m 200 m 400 m 2 km

A ball is projected horizontally from the top of a cliff on the surface of the earth with a speed of 40ms-1. Assuming that there is no air resistance, what will its speed be 3 s later? 30 m/s 40 m/s 50 m/s 60 m/s

Number of electrons, protons and neutrons present in respectively

CHEMISTRY HAS STARTED

28, 30, 36 28, 28, 36 32, 30, 36 28, 36, 30

Positive rays are produced By burning of gas By cooling of the gas By ionizing the gas From anode like cathode rays, produced from cathode

Pressure in gas discharge tube was kept ____ to produce cathode rays 10torr 1torr 0.1torr 0.01torr

The e/m ratio for the positive rays is maximum for Hydrogen Helium Oxygen Nitrogen

e/m ratio of cathode rays is ………. than that of canal rays Smaller Greater Equal Depend upon the condition

Which rays are more penetrating in nature Alpha rays Beta rays Gamma rays All have same nature

Which of the following specie has more electrons than neutrons Na+ Mg+2 O-1 F-1

An electron makes a transition from energy state E3 to E1 will emit a photon of frequency υ = E1-E3/h υ = (E3 – E1) h υ = (E3-E1)/h none of these

Which of the following is not the unit of wave number m—1 Cm—1 mm—1 Cm

The number of orbitals in the 2nd principal quantum number of an atom is 4 9 16 1

Which of the following quantum numbers is not derived from Schrodinger wave equation Principal quantum number from Schrodinger Azimuthal quantum number from Schrodinger Magnetic quantum number from Schrodinger Spin quantum number from Schrodinger

Electronic configuration of species M2+ is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s⁰ 3d⁶ and its atomic weight is 56, number of neutrons in the nucleus of species M is 20 26 28 30

Which subshell is nearest to nucleus 1s 2s 2p Both A & B

How many numbers of clockwise electrons are present in helium? 0 1 2 4

The number of electrons in a shell can be calculated by formula 2l + 1 2(2l + 1) 2n² n²

Which of the following sets of quantum numbers is not allowed? n = 3, l = 2, m = 0, s = -1/2 n = 3, l = 1, m = -1, s = -1/2 n = 3, l = 0, m = 0, s = -1/2 All are allowed

Magnetic quantum number is related to Size of orbit Shape of orbital Spin of electron Orientation of orbital

(An) __ is a region of space in which there is a high probability of finding an electron in an atom Shell Main energy level Atomic orbital Nucleus

When azimuthal quantum number l =2, then ‘m’ can have ____ value 3 5 7 9

Choose the Correct form of verb. "Let this story __ for some other time

ENGLISH HAS STARTED

has been told is told be told be tell

Choose the Correct form of verb. "I prefer eating vegetables to __ pork at the party." have had had having have

Choose the Correct form of verb. It ____ drizzling since morning. has been will has will have should have been

Choose the Correct form of verb. It is suggested that he ____ medicine to get himself better. has taken takes take does take

Choose the Correct form of verb. I'd rather you __ before wearing my new suit. had asked would have asked will have asked asked

Synonym for "briskly" Slowly Actively Tediously Dully

Dryland farming is the only way to not only combat recurring drought but also meet the increasing food requirements of Pakistan. About 45% of Pakistan’s total crop production now comes from drylands. By the end of this century, this will have to increase to 60% if Pakistan is to provide adequate food for projected population of one billion by the turn of the century. Dryland farming is important for Pakistan.

LOGICAL REASONING

Data inadequate Definitely true Probably true Probably false Definitely false

Of the roughly 4, 40,000 children who currently languish in America’s foster-care system, 20,000 are available for adoption, most of them are older children between the ages of 6 and 12. Among the adoptable children, 44% are white and 43% are black. But 67% of all families waiting to adopt are white, and many of them are eager to take a black child. The hurdles, however, are often formidable. Though only three US states: Arkansas, California and Minnesota, have laws promoting race matching in adoptions, 40 other favor the practice. Children beyond 12 years of age are less suitable for adoption. Data inadequate Definitely true Probably true Probably false Definitely false

Of the roughly 4, 40,000 children who currently languish in America’s foster-care system, 20,000 are available for adoption, most of them are older children between the ages of 6 and 12. Among the adoptable children, 44% are white and 43% are black. But 67% of all families waiting to adopt are white, and many of them are eager to take a black child. The hurdles, however, are often formidable. Though only three US states: Arkansas, California and Minnesota, have laws promoting race matching in adoptions, 40 other favor the practice. White children are being preferred for adoption by majority of black families. Data inadequate Definitely true Probably true Probably false Definitely false

Of the roughly 4, 40,000 children who currently languish in America’s foster-care system, 20,000 are available for adoption, most of them are older children between the ages of 6 and 12. Among the adoptable children, 44% are white and 43% are black. But 67% of all families waiting to adopt are white, and many of them are eager to take a black child. The hurdles, however, are often formidable. Though only three US states: Arkansas, California and Minnesota, have laws promoting race matching in adoptions, 40 other favor the practice. Majority of the US states have laws that discourage the practice of adoption. Data inadequate Definitely true Probably true Probably false Definitely false

Of the roughly 4, 40,000 children who currently languish in America’s foster-care system, 20,000 are available for adoption, most of them are older children between the ages of 6 and 12. Among the adoptable children, 44% are white and 43% are black. But 67% of all families waiting to adopt are white, and many of them are eager to take a black child. The hurdles, however, are often formidable. Though only three US states: Arkansas, California and Minnesota, have laws promoting race matching in adoptions, 40 other favor the practice. Among the adoptable children at least 10 percent are neither black nor white. Data inadequate Definitely true Probably true Probably false Definitely false