PIEAS Mock Test 4 - PLS Academy

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PIEAS

PIEAS Mock Test 4

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1 / 80

Category: Chemistry Ch 12 Class 12

Simplest aromatic aldehyde has number of hydrogen atoms.

2 / 80

Category: Chemistry Ch 9 Class 11

Definition of Raoult’s law is,

The lowering of vapor pressure is equal to the mole fraction of solute

The relative lowering of vapor pressure is directly proportional to the mole fraction of solute.

The relative lowering of vapor pressure is equal to the mole fraction of solute

The relative lowering vapor pressure is equal to the mole fraction of solvent

3 / 80

Category: Physics Ch 14 Class 12

What are dimensions of Magnetic Flux

4 / 80

Category: Physics Ch 14 Class 12

Ammeter Is a galvanometer with:

High resistance in series

Low resistance in series

High resistance in parallel

Low resistance in parallel

5 / 80

Category: Chemistry Ch 8 Class 11

If the value of Kc is large than the ratio (products)/(reactants), the reaction:

Is at equilibrium

Is not at equilibrium

The reaction moves in the forward direction

The direction will move in the reverse direction

6 / 80

Category: Physics Ch 12 Class 12

Flux passing through an area does not depend upon

Medium

Shape of hypothetical surface

Numbers of line passing through the area

None of these

7 / 80

Category: Physics Ch 12 Class 12

If capacitor is connected with battery and is fully charged then

Current will flow

Current will not flow

Depends on the dielectric

May or may not flow

8 / 80

Category: Physics Ch 12 Class 12

A charge is situated in the center of cube. The electric flux through one of the faces of the cube is.

Q/Eo

Q/2Eo

Q/4Eo

Ct/6Eo

9 / 80

Category: English

Q.196 Choose the correct synonyms of Yearning

A) yawning

B) enduring

C) longing

D) prolonging

10 / 80

Category: English

Q.186. Chatteris fell ill during the winter of 17 and Chips became Acting Head of Brookfield

A.fell

B.17

C.became

D.acting head

11 / 80

Category: English

Q.181.Choose the Correct sentence

A) He worked a lot last year, and he could not get what he wanted.

B) He worked a lot last year, and he could not get what he wanted.

C) He worked a lot last year. He could not got what he wanted.

D) He worked a lot last year, as he could not get what he wanted

12 / 80

Category: English

Q.200 If mountains are.______________ of trees, rains will soon wash the fertile topsoil down the slope to end as useless silt below.

A. Deforested

B. Afforested

B. Stripped

D. Shortage

13 / 80

Category: English

Q.199 The students were a waiting for the arrival of the chief guest.

A. The students were

B. A waiting for

C. The arrival of

D. The chief guest.

14 / 80

Category: Chemistry Ch 9 Class 12

The reaction of benzene with bromine gives?

Allkyl bromide

Hydrogen bromide

Bromo-phenol

Bromo cyclohexane

15 / 80

Category: Math Ch 4 Class 12

Let ?(?? , ??) not lying on the line ?: ?? + ?? + ? = ? then point P lies above if

?1? + ?1? + ?1 = 0

?1? + ?1? + ?1 ≠ 0

?1? + ?1? + ?1 < 0

?1? + ?1? + ?1 > 0

16 / 80

Category: English Grammar

The miser gazed — at the pile of gold coins in front of him.

Avidly

Admiringly

Thoughtfully

Earnest

17 / 80

Category: English Grammar

Those who persist In the endeavor at long last triumph – the odds of life.

Over

Upon

About

18 / 80

Category: Chemistry Ch 10 Class 11

Both a and c What is the oxidation number of S in SO2^(-2)?

— 6

19 / 80

Category: Chemistry Ch 10 Class 11

Oxidation number of Cr in K2Cr2O2 & K2Cr2O4 is:

+6, +3

+5, +2

7 +3

6 +4

20 / 80

Category: Physics Ch 10 Class 11

Spherical aberration can be reduced by using

double convex lens

central portion of the lens

edge portion of the lens

parallel rays

21 / 80

Category: Physics Ch 10 Class 11

In going form a denser to rarer medium a array of light is

undeviated

bent away form the normal

bent towards the normal

polarized

22 / 80

Category: Physics Ch 10 Class 11

In multimode step index fibre the refractive index of core and cladding is

Same

Different

Zero

Different with refractive index of core higher than cladding

23 / 80

Category: Chemistry Ch 15 Class 12

Ammonium nitrate contain nitrogen

24 / 80

Category: Physics Ch 5 Class 11

1 degree Is equal to radians

180

3.14

0.01745

25 / 80

Category: Math Ch 7 Class 12

Cross product or vector product is defined

In plane only

in space only

everywhere

in vector field

26 / 80

Category: Math Ch 7 Class 12

27 / 80

Category: Math Ch 7 Class 12

If any two vectors of scalar triple product are equal, then its value is equal to

-1

28 / 80

Category: Math Ch 7 Class 12

. If the dot product of two vectors is zero, then the vectors must be

Parallel

orthogonal

reciprocal

equal

29 / 80

Category: English Reading Comprehension

Passage 10 Hi, my name’s Andriy. I love football, I am a great fan of AC Milan. I have also been interested in cars since I was a child. I’m crazy about driving and I also enjoy fixing cars. When I was ten, I had many toy cars. I would play with them, repair the ones my friends broke. I also used to help my dad fix his car. So, eventually I decided to become a mechanic and open up my own shop. My parents are happy with my choice, too. They think it’s important that I pursue a carrier that I like. I have a bright career now and I really enjoy it. I’m planning to get married soon. My girlfriend is also interested in cars. Who knows, maybe we can run the car shop together with our kids in the future. Andriy has been interested In cars since

a) 2007

b) He was born

c) His started driving

d) Very young age

30 / 80

Category: English Reading Comprehension

Passage 5 One of my favorite vacation places is Mexico. I really like the weather there because it never gets cold. The people are very nice too. They never laugh at my bad Spanish. The food is really good. Mexico City is a very interesting place to visit. It has some great museums and lots of fascinating old buildings. The hotels arc too expensive to stay but there are more affordable options. For example, you can stay at one of the beach resorts like Acapulco. If you are planning to visit Mexico, you should definitely see the Mayan temples near Merida.

What can you conclude from the paragraph?

a) Hotels are very cheap in Mexico

b) The hotels aren't comfortable there

c) Hotels are all poor In Mexico

d) The hotels in Mexico are pretty expensive

31 / 80

Category: Physics Ch 17 Class 12

If stress is doubled, then volume becomes

Double

Half

Four times

None of these

32 / 80

Category: Physics Ch 7 Class 11

According to the hook’s law, strain is directly proportional to stress

True

False

None of these

May or may not

33 / 80

Category: Physics Ch 7 Class 11

Time period of simple pendulum depends on

Mass

Length of the pendulum

Acceleration due to gravity g

Both b and c

34 / 80

Category: Chemistry Ch 11 Class 12

Higher order alcohols

Have more than 1 carbon

have more than 3 carbons

Have more than 2 carbons

Have more than 4 carbons

35 / 80

Category: Chemistry Ch 11 Class 12

Which of the following are not usually named using IUPAC system?

Alkenes

Alkalies

Ether

Alcohols

36 / 80

Category: English Analogies

Necessity : Invention

Curiosity : Knowledge

Price : Commodity

Nation : Citizens

Language : Conversation

37 / 80

Category: English Analogies

Fox : Cunning a)

Cat : Playful

) Horse : Runner

Vixen : Cute

Ant : Industrious

38 / 80

Category: English Analogies

Dusk : Night

Afternoon : Evening

Infant : Child

Walk : Run

Day : Light

39 / 80

Category: Physics Ch 6 Class 11

terminal velocity of a water droplet is dependent on:

Mass

Radius

Both a and b

None

40 / 80

Category: Physics Ch 11 Class 11

If speed of a fan in a room is Increased then the temperature of air in the room will

Decrease

Increase

Remain Same

Either a or b

41 / 80

Category: Chemistry Ch 14 Class 12

42 / 80

Category: Chemistry Ch 14 Class 12

Which of the following is a monosaccharide ?

Maltose

Sucrose

lactose

Fructose

43 / 80

Category: English Spellings Correction

Choice Correct Spelling

Severely

Siverely

Saverely

Soverely

44 / 80

Category: English Spellings Correction

Choice Correct Spelling

Extravagant

Axtravagant

Extravegant

Extravigant

45 / 80

Category: English Spellings Correction

Choice Correct Spelling

Disciple

Desciple

Diseiple

Discipile

46 / 80

Category: English Spellings Correction

Choice Correct Spelling

Baundary

Boundary

Bondary

Boundery

47 / 80

Category: Chemistry Ch 13 Class 12

Amino acids are prepared by?

Suckers synthesis

Dow's method

h) Williamson's synthesis

Sabatier-Sendern's synthesis

48 / 80

Category: Chemistry Ch 13 Class 12

To get the carboxylic acid containing C atoms less than C atoms in parent aldehyde we do hydrolysis of:

Cyanohydrins

Amino Acids

Esters

Amides

49 / 80

Category: Chemistry Ch 8 Class 12

Sp hybridization is found In which of the following?

Ethane

Ethene

Ethyne

None

50 / 80

Category: Physics Ch 4 Class 11

ML^2T^-3 is the dimension of:

Power

Work

Momentum

Force

51 / 80

Category: Physics Ch 4 Class 11

What is the unit of Power

Watt

Ampere

Newton

Joules

52 / 80

Category: Physics Ch 4 Class 11

If a force of 1 N acts on a body through a distance of 1 m in the direction of force, how much
work is done?

1 J

– 1 J

0 J

Either a or b

53 / 80

Category: Chemistry Ch 7 Class 12

Wohler prepared urea from:

Bakelite

Cyanic acid

NH4CNO

Formaldehyde

54 / 80

Category: Physics Ch 21 Class 12

Radiation cause damage in a)

Cell

Skin

Hair

All of above

55 / 80

Category: Physics Ch 21 Class 12

Disintegration of a radioactive element is

Periodic

Dependent on its atomic number

Random

None of these

56 / 80

Category: Physics Ch 21 Class 12

If half-life of an element Is 4 minutes, then 3/4′ of It Is decayed in:

6 min

4 min

8 min

10 min

57 / 80

Category: Chemistry

Hydration energy of sodium Ion Is:

321 Kj/mol

406 Kj/mol

1032 kJ/mil

940 Kj/mol

58 / 80

Category: Chemistry

Vinyl bromide can be prepared from:

Hydroxyl bromide

Ethylene dibromide

Vicinal brornida

All of these

59 / 80

Category: Physics Ch 8 Class 11

The frequency of a wave as the source approaches the observer with speed v

Increases

First increases then decreases

Decreases

Remains same

60 / 80

Category: Chemistry Ch 10 Class 12

When Grignard reagent react with water they give as a product

Ether

Amine

Alkane

Alcohol

61 / 80

Category: Chemistry Ch 10 Class 12

Alcbhols react with aqueous acid to produce alkyl halides in presence of

ZnCl2

SO2

Pyridine

KOH

62 / 80

Category: Physics Ch 13 Class 12

If a magnetic field around a current carrying wire is anticlockwise then the direction of current flow is a

Upwards

Downward

Rightward

Leftward

63 / 80

Category: Physics Ch 13 Class 12

If length of a wire is Increased two times and Its cross-sectional area is reduced to half, the resistance of the wire will be:

0.5 R

0.25 R

64 / 80

Category: Physics Ch 9 Class 11

When light enters from air to glass remains constant?

Frequency

Wavelength

Velocity

All of these

65 / 80

Category: English – Synonyms and Antonyms

Choose the word most opposite in meaning to “Incomparable”

Unique

Rival

Attire

Routine

66 / 80

Category: English – Synonyms and Antonyms

Choose the word closest In meaning to “Nadir”

Bottom

Pinnacle

Apex

Root

67 / 80

Category: English – Synonyms and Antonyms

Choose the word closest in meaning to “Pursue”

Aid

Quit

Hunt

Shun

68 / 80

Category: English – Synonyms and Antonyms

Choose the word closest In meaning to “Robust”

Wealthy

Stout

Limp

Assiduous

69 / 80

Category: Physics

Center of gravity of a cup Iles

At the handle of cup

In space Inside the cup

Outside cup d)

On the surface of cup

70 / 80

Category: Physics Ch 16 Class 12

Reactance of an Inductor Is given by:

1/wL

1/wC

71 / 80

Category: Physics Ch 19 Class 12

Name the scientist who won the noble prize for discovery of energy quanta

Maxwell

Newton

Plank

Einstein

72 / 80

Category: Physics Ch 19 Class 12

If Compton shift is half of Compton wavelength, then the scattering angle would be:

120

73 / 80

Category: Physics Ch 19 Class 12

The stopping potential depends on

Intensity of incident light

Frequency of Incident light

Both a and b

None of these

74 / 80

Category: Math Ch 2 Class 12

75 / 80

Category: Math Ch 2 Class 12

A point where 1st derivative of function is zero , is called

Stationary point

corner point

point of concurrency

common point

76 / 80

Category: Math Ch 3 Class 12

The order of the differential equation : ????/??? +??/?? − ? = ?

more than 2

77 / 80

Category: Math Ch 5 Class 12

(0,0) is satisfied by

? − ? < 10

2? + 5? > 10

? − ? ≥ 13

None

78 / 80

Category: Math Ch 5 Class 12

Corner point is also called

Origin

Focus

Vertex

Test point

79 / 80

Category: Chemistry Ch 16 Class 12

NO2 in atmosphere absorbs moisture to form?

HNO3

HNO2

Both a and b

80 / 80

Category: Physics Ch 15 Class 12

Which electrical quantity cannot be changed by a transformer?

Voltage

Current

Power

Inductance

Your score is

The average score is 43%

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