MP-D6 – LETS

MDCAT PREP DAY 06

QUIZ DAY 06

MDCAT QUIZ DAY 06

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

The value of Kc for endothermic reversible reaction

CHEMISTRY PORTION

Increases with increase in temperature Decreases with increase in temperature Is independent of temperature No prediction can be made

Calculate the value of Kc for ammonia synthesis when the equilibrium concentration of nitrogen, hydrogen and ammonia are 2M, 2M and 4M at 400°C 1.0 mol-² dm⁶ 16 mol-² dm⁶ 0.1 mol-² dm⁶ 1/64 mol-² dm⁶

For the following reaction The equilibrium constant unit is mol2dm-3 mol dm3 moldm-3 mol–1 dm3

The equilibrium constant is given as Kc= Kf / Kr Kf – Kr kf × kr kf + kr

The equilibrium expression for reaction is Increase of pressure shifts equilibria to right Increase of pressure increases Kc Increase of pressure decreases Kc Both a and b

Decomposition of PCl5 is favoured by Decrease in temperature Increase in volume Decrease in volume High pressure

The value of Kp and Kc are same for the reaction Synthesis of SO3 from SO2 and O2 Formation of NH3 from N2 and H2 Dissociation of HF Dissociation of COCl2

When no. of moles of reactants are equal to that of the products, Kp < Kc Kp > Kc Kp = Kc none of these

Find the Kc of following reaction if equilibrium concentrations of acetic acid, ethanol, ethyl acetate and water are 1.0M, 1.0M, 2.0M and 2.0M respectively 0.25 1 4.5 4

If ratio of concentration of products and that of reactants is greater than Kc then reaction will move at equilibrium unchanged backward Forward

At very high pressure and low temperature, the rate of formation of NH3 is moderate low High none of these

Specific rate constant is also called Proportionality constant Equilibrium constant Reaction constant Velocity constant

A certain reaction has the rate equation, Rate = k[A][B]2. The rate is 2.5×10-3 mol dm–3s-1. When [A] is 0.2 mol dm-3 and [B] is 0.050 mol dm-3. Calculate the numerical value of rate constant 0.05 5.0 2 50

Which one is incorrect about rate of reaction Rate of reaction decreases progressively If time approaches to zero instantaneous and average rate become equal At start instantaneous rate is greater than average rate At start average rate is greater than instantaneous rate

Which one is NOT physical method for rate determination of chemical reaction Dilatometric method Spectrometric method Half life method Optical rotation method

The rate expression of a reaction is, Rate = k[A][B]2.What happens to rate of reaction if concentrations of A and B are doubled? Increased two times Increased four times Increased eight times Increased nine times

A disc of radius R=20 cm is rotating about its axis with an angular velocity 20rad/s on a horizontal smooth surface. The linear speed of point. C on the disc is

PHYSICS PORTION

1m/s 2 m/s 4 m/s 5 m/s

Which of the following is correct relation υ=ω×r υ= r × ω ω= r×υ ω= υ×r

When a wheel 1m in diameter makes 30 rev/min, the linear speed of point on it’s rim in ms-1 is 2π π/2 3π 4π

A girl sits near the edge of a rotation circular platform. If the girl moves from circumference towards the centre of the platform, then the angular velocity of the platform will Decrease Increase Remain same Becomes zero

How many elements are there to help in nervous coordination?

BIOLOGY PORTION

1 2 3 4

In neuron, nucleus and various other organelles are embedded in cytoplasm of: Cell processes Cell body Axon Dendron

Neurons that are found only in central nervous system are: Sensory neurons Motor neurons Associative neurons All A, B, C

A reflex action: Occurs involuntarily Requires the involvement of CNS Is protective All A, B, C

Baroreceptors (Pressure receptors) are located in our: Nasal cavity Carotid arteries Brachial arteries Spinal cord

On the basis of mode of nutrition, organisms can be divided into: Five groups Four groups Three groups Two groups

Excess of nitrogen supply to plant produces: Abundant leaves that are dark green Lesser number of variegated leaves Yellow leaves No leaves at all

The mutualistic association between certain fungi and roots of vascular plants are known as: Rhizoids Haustoria Mycelium Mycorrhizae

Carnivorous plants live in soil that are deficient in: Water Oxygen Nitrogen Iron

Pick out the different: Dodder Sundew Venous fly trap Pitcher plant

In plant mineral nutrition, elements are called macro and micro depending upon their: Relative amount required in plants Relative presence in plant ash Relative importance in plant growth Relative availability in soil

The mode of nutrition in which one organism obtains nutrition from other organisms is known as: Symbiosis Heterotrophic nutrition Autotrophic nutrition Saprophytic nutrition

Esophagus is mainly composed of: Striated muscles Stripped muscles Non-striated involuntary muscles Non-striated voluntary muscles

Structure in human digestive system involved in mastication: Tongue Teeth Stomach Liver

Total canines in our oral cavity are: 2 4 6 8

Tongue secretes: Amylase Ptyalin Serous fluid Protease

Transport through Na-K pump is: Direct active transport Indirect active transport Facilitated diffusion Carrier mediated transport

Resting membrane potential is maintained by: Gated channels Neurotransmitters Ion pumps Hormones

The action potential from one neuron to the other is transmitted in form of: Nerve impulse Neurotransmitters Hormones Electric current

Chemical messengers involved in synaptic transmission are: Synaptic vesicles Neurotransmitters Enzymes Hormones

The primary function of spinal cord is to: Produce CSF Communicate brain with rest of body Produce hormones Communicate two hemispheres

Direction: Choose the correct SYNONYMS. DISTRACT

ENGLISH PORTION

Intimate Engross Weary Entertain

Select the most suitable synonym for the given words: DISPENSING ravishing suppressing supply custody

Select the most suitable synonym for the given words: DAINTILY exquisitely awkwardly punter flout

Direction: Choose the correct SYNONYMS. DRUMMED Bashed Dashed Hushed Reverberated

Select the most suitable synonym for the given words: ENCHANTED delighted offended plunged debunked

Select the most suitable synonym for the given words: COMPREHENSION inelegance command bewildered reward

Select the most suitable synonym for the given words: EXUDE emanate obscure ornament contentment

Select the most suitable synonym for the given words: DELICATELY festivity extremely mildly silently

Select the most suitable synonym for the given words: CONFIRM nix verify rebut detrimental

Direction: Choose the correct SYNONYMS. DISCONSOLATELY Valiantly Heartily Gloomily Lucidly

In the first type of sentences, some segments of each sentence are underlined. Your task is to identify that underlined segment of the sentence, which contains the mistake that needs to be corrected. The cities (A) show an (B) absence of automobiles which (C) is neither backwardness or (D) delay. The cities an which or

Choose the best option. No sooner had they finished the test _____ the teacher gave the students all the correct answers. that than as when

Choose the Correct Sentence. Later nothing remained than a faint luminosity buried beneath darkness. Later nothing remained beside a faint luminosity buried beneath darkness. Later nothing remained and a faint luminosity buried beneath darkness. Later nothing remained but a faint luminosity buried beneath darkness.

Choose the best option. It was _____ of talking with him than anything else that I kept up with him. a more for sake most for the sake more for the sake most or the sake

Pick the wrong in given series 3,8,15,24,34,48,63 15 24 34 48

Find out the wrong term. 3,10,27,4,16,64,5,25,125 3 4 10 27

Find the missing term: 2,8,16,128,? 2056 2048 2046 2042

Pick out the wrong: 125,126,124,127,123,129 126 124 127 129

1,1,4,8,9,27,16,? 32 64 81 256

11,13,17,19,23,25,? 26 27 29 37