Hey!!! As per your demand here I am providing you Sample Question Paper of Delhi Polytechnic Entrance Exam

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