# WBJEE Previous Question Papers

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WBJEE Previous Year Papers helps you to know about exam scheme and topics from which questions will be asked in the examination. Apart from it, you can get idea of the important questions of West Bengal Joint Entrance Exam also with the help of WBJEE question paper last 5 years.

• Name of University: West Bengal Joint Entrance Examination Board
• Admission For: Architecture, Pharmacy and Engineering courses
• Official Website: wbjeeb.nic.in

## WBJEE Question Papers

WBJEE Question Papers

Ques: 1. A piece of ice is dropped in a vesel containing kerosene. When ice melts, the level of kerosene will

1. Rise
2. Fall
3. Remain Same
4. None of these

Ques: 2. Young’s modulus is the property of

1. Gas only
2. Both Solid and Liquid
3. Liquid only
4. Solid only

Ques: 3. An artificial Satellite revolves round the Earth in circular orbit, which quantity remains constant?

1. Angular Momentum
2. Linear Velocity
3. Angular Displacement
4. None of these

Ques: 4. If electrical conductivity increases with the increase of temperature of a substance, then it is a:

1. Conductor
2. Semiconductor
3. Insulator
4. Carborator

Ques: 5. Minimum distance between and object and real image of a convex lense is:

1. 4<i>f</i>
2. 3<i>f</i>
3. 2<i>f</i>
4. <i>f</i>

Ques: 6. Product of Force and Velocity is called:

1. Work
2. Power
3. Energy
4. Momentum

Ques: 7. Which one of the following has the highest value of specific heat ?

1. Alcohol
2. Methane
3. Kerosene
4. Water

Ques: 8. With the increase of pressure, the boiling point of any substance

1. Increases
2. Decreases
3. Remains Same
4. Becomes zero

Ques: 9. Elecronegativity is the measure of

1. Metallic character
2. Non-metallic character
3. Basic Character
4. None of these

Ques: 10. The rotational effect of a force on a body about an axis of rotation is described in terms of the

1. Centre of gravity
2. Centripetal force
3. Centrifugal force
4. Moment of force

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Ques: 11. A body floats in water with 40% of its volume outside water. When the same body floats in oil, 60% of its volume remains outside oil. The relative density of the oil is

1. 9
2. 2
3. 5
4. 8

Ques: 12. The light beams of intensities in the ratio of 9: 1 are allowed to interfere. What will be the ratio of the intensities of maxima and minima?

1. 3: 1
2. 4: 1
3. 25: 9
4. 81: 1

Ques: 13. Two thin lenses of focal lengths 20 cm and 25 cm are placed in cotact. The effective power of the combination is

1. 9D
2. 2D
3. 3D
4. 7D

Ques: 14. A convex lens of focal length 30 cm produces 5 times magnified real image of an object. What is the object distance?

1. 36 cm
2. 25 cm
3. 30 cm
4. 150 cm

Ques: 15. A plano-concave lens is made of glass of refractive index 1.5 and the radius of curvature of its curved face is 100 cm. What is the power of the lens?

1. + 0.5 D
2. 5 D
3. 2 D
4. + 2 D

Ques: 16. 2 gm of metal carbonate is neutralized completely by 100 ml of 0.1 (N) HCl. The equivalent weight of metal carbonate is

1. 50
2. 100
3. 150
4. 200

Ques: 17. Which one is not a constituent of nucleic acid?

1. Uracil
2. Guanidine
3. Phosphoric acid
4. Ribose sugar

Ques: 18. In aqueous solution glucose remains as

1. Only in open chain form
2. Only in pyranoze form
3. Only in furanose forms
4. In all three forms in equilibrium

Ques: 19. Reaction of formaldehyde and ammonia gives

1. Hexamethylene tetramine
2. Bakelite
3. Urea
4. Triethylene Tetramine

Ques: 20. The molarity of a NaOH solution by dissolving 4 g of it in 250 ml water is guu?

1. 4 M
2. 8 M
3. 2 M
4. 1 M

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Ques: 21.In a periodic table the basic character of oxides

1. increases from left to right and decreases from top to bottom
2. decreases from right to left and increases from top to bottom
3. decreases from left to right and increases from top to bottom
4. decreases from left to right and increases from bottom to top

Ques: 22. Which one of the following contains P – O – P bond ?

1. Hypophosphorus acid
2. Phosphorus acid
3. Pyrophosphoric acid
4. Orthophosphoric acid

Ques: 23. Which of the following statements regarding ozone is not correct ?

1. The Ozone molecule is angular in shape
2. The Ozone is a resonance hybrid of two structures
3. The Oxygen– Oxygen bond length in ozone is identical with that of molecular oxygen
4. Ozone is used as germicide and disinfectant for the purification of air.

Ques: 24. Which of the following metals has the largest abundance in the earth’s crust ?

1. Aluminium
2. Calcium
3. Magnesium
4. Sodium

Ques: 25. For which element the inertness of the electron pair will not be observed?

1. Sn
2. Fe
3. Pb
4. In

Ques: 26. In which of the following molecules is hydrogen bridge bond present?

1. Water
2. Inorganic benzene
3. Diborane
4. Methanol

Ques: 27. When a manganous salt is fused with a mixture of KNO3 and solid NaOH the oxidation number of Mn changes from +2 to

1. +4
2. +3
3. +6
4. +7

Ques: 28. Ortho-and para-hydrogens have

1. Identical chemical properties but different physical properties
2. Identical physical and chemical properties
3. Identical physical properties but different chemical properties
4. Different physical and chemical properties

Ques: 29. The bond order of CO molecule is

1. 2
2. 5
3. 3
4. 5

Ques: 30. Vitamin C is

1. Citric acid
2. Lactic acid
3. Paracetamol
4. Ascorbic acid

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