As you going to appear in Jharkhand Polytechnic Entrance Competitive Examination and for its preparation looking for sample paper , so on your demand I am providing same :

Ques. 1: The relative reactivities of acyl compounds towards nucleophilic substitution are in the order of

Acyl chloride > Ester > Acid anhydride > Amide
Acyl chloride > Acid anhydride > Ester > Amide
Ester > Acyl chloride > Amide > Acid anhydride
Acid anhydride > Amide > Ester > Acyl chloride

Answer: 2

Ques. 2: How many stereoisomers does the molecules have?

CH3CH = CHCH2CHBrCH3

2
4
6
8

Answer: 2

Ques. 3: The number of d-electrons in Fe2+ (Z = 26) is not equal to that of

p-electrons in Ne(Z = 10)
s-electrons in Mg(Z = 12)
d-electrons in Fe(Z = 26)
p-electrons in CI(Z = 17)

Answer: 4


Ques. 4: Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to

the heating effect of current alone
hysteresis loss alone
both the heating effect of current and hysteresis loss
intense sunlight at noon

Answer: 3

Ques. 5: which one of the following elements silicon should be doped so as to give p type of semiconductor?

Boron
Germanium
Arsenic
Selenium

Answer: 1


Ques. 6: Which one of the following arrangements does not give the correct picture of the trends indicated against it?

F2 > Cl2 > Br2 > I2: Electronegativity
F2 > Cl2 > Br2 > I2: Oxidizing power
F2 > Cl2 > Br2 > I2: Electron gain enthalpy
F2 > Cl2 > Br2 > I2: Bond dissociation energy

Answer: 4

Ques. 7: Number of moles of MnO4- required to oxidize one mole of ferrous oxalate completely in acidic medium will be

2 moles
6 moles
4 moles
5 moles

Answer: 2

Ques. 8: Radiocarbon is produced in the atmosphere as a result of

collision between fast neutrons and nitrogen nuclei present in the atmosphere
action of ultraviolet light from the sun on atmospheric oxygen
action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere
lightning discharge in atmosphere

Answer: 1


Ques. 9: Nuclear sizes are expressed in a unit named

Fermi
angstrom
newton
tesla

Answer: 1

Ques. 10: Lux is the SI unit of

intensity of illumination
luminous efficiency
luminous flux
luminous intensity

Answer: 1

Ques. 11: Point A is at a lower electrical potential than point B. An electron between them on the line joining them will

move towards A
move towards B
move at right angles to the line joining A and B
remain at rest

Answer: 2


Ques. 12: The high reactivity of fluorine is due to

its high electro negativity
small size of fluorine atom
availability of d-orbitals
strong F – F bond

Answer: 1

Ques. 13: The iron ore magnetite consists of

Fe2O3
Fe3OH4
FeCO3
. 3H2O

Answer: 1

Ques. 14: The main chemical constituent of clay is

silicon oxide
aluminium borosilicate
zeolites
aluminium silicate

Answer: 4


Ques. 15: The main use of salt in the diet is to

make the taste of food better
produce in small amounts the hydrochloric acid required for the digestion of food
ease the process of cooking
increase the solubility of food particles in water

Answer: 2

Ques. 16: In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit?

30%
70%
100%
250%

Answer: 2


Ques. 17: A, B, C subscribes Rs. 50,000 for a business. A subscribes Rs. 4000 more than B and B Rs. 5000 more than C. Out of a total profit of Rs. 35,000, A receives:

8400
11,900
13,600
14,700

Answer: 4

Ques. 18: The equation of parabola which passes through the intersection of a straight line x + y = 0 and the circle x2 + y2 + 4y = 0 is:

y2 = 4x
y2 = x
y2 = 2x
none of these

Answer: 3


Ques. 19: Sin A. Sin B, Cos A are in GP, Roots of x2 + 2 x cot B + 1 = 0 are always:

real
imaginary
greater than 1
equal

Answer: 1

Ques. 20: A transmission line has a characteristic impedance of 50 Ω and a resistance of 0.1Ω/m, if the line is distortion less, the attenuation constant (in Np/m) is

500
5
014
002

Answer: 4