Post Code: 690
Series: B
1. Which does not belong to the first transition series?
- Fe
- V
- Ag
- Cu
2. In the compound, lithium tetrahydroaluminate, the ligand is
- H+
- H
- H-
- None of these
3. K4 [Fe (CN)6] is
- Double salt
- Complex compound
- Natural molecule
- None of these
4. The IUPAC name of the compound CH2 = CH-CH(CH3)2 IS
- 1, 1- DIMETHYLPROP -2 – ENE
- 3 – METHYLBUT – 1 – ENE
- 2 – VINYLPROPANE
- 1- ISOPROPYLETHYLENE
5. Ethyl bromide reacts with silver nitrite to form
- Nitroethane
- Ethane
- Ethyl nitrite
- Both A and C
6. Bromination of trans but -2 ene leads to the formation of
- D form
- l form
- meso compound
- both d and l forms
7. Salicylaldehyde can be prepared from phenol by
- schotten- Baumann reaction
- kolbe’s reaction
- perkin reaction
- reamer Tiemann reaction
8. Which is the strongest acid?
- CH=CH
- C6 H6
- C2 H6
- CH3 OH
9. No. of acyclic isomers of the compound having the molecular formula C4 H10 O
- 4
- 5
- 6
- 7
10. Which will not give formaldehyde on heating or upon distillation?
- Formalin
- Trioxane
- Paraldehyde
- None of these
11. A new carbon-carbon bond formation is possible in
- Cannizaro’s reaction
- Friedal Craft’s reaction
- Reamer-Tiemann reaction
- Both a and b
12. Which has the maximum acid strength?
- O-Nitrobenzoic acid
- M-Nitrobenzoic acid
- P-Nitrobenzoic acid
- P-Nitrophenol
13. Which of the following compounds is most basic?
- Aniline
- Cyclohexylamine
- O-Nitroaniline
- P-Methoxyaniline
14. Thymine is
- 5- methyluracil
- 4- methyluracil
- 3- methyluracil
- 1- methyluracil
15. Glucose does not react with
- Hydroxylamine
- HNO3
- Acetic anhydride
- Sodium bisulphate
16. Which is not a condensation polymer?
- Melamine
- Glyptal
- Dacraon
- Neoprene
17. Which of the following is a polyamide?
- Teflon
- Nylon-66
- Terylene
- Baklite
18. 2 percent solution of phenol is
- Antiseptic
- Disinfectant
- Antibiotic
- Antiallergic
19. Which of the following principles is being used in SONAR technology?
- Laws of thermodynamics
- Reflection of electromagnetic waves
- Newton’s law of motion
- Reflection of ultrasonic waves
20. 1 fermi is equal to
- Energy
- Coefficient of viscosity
- Pressure
- Force
21. Pascal-second has the dimensions of
- Energy
- Coefficient of viscosity
- Pressure
- Force
22. If resultant of two vectors of equal magnitude is equal to the magnitude of either vector, then the angle between two vectors is
- 30°
- 60°
- 90°
- 180°
23. The angle between two equal vectors is
- 0°
- 60°
- 90°
- 180°
24. When train suddenly stops, the passengers fall forward. It is due to
- Intertia of motion
- Inertia of direction
- Gravitational pull by the earth
- None of these
25. The direction of the force of friction is
- Perpendicular to the motion of a body
- Along the direction of motion of a body
- Opposite to the direction of motion of a body
- None of these
26. Impulse is
- Force
- A scalar quantity
- Equal to change in momentum of a body
- Equal to the rate of change of momentum of body
27. A force of 49 N is just able to move a black of wood of mass 10 kg on a rough horizontal surface. The coefficient of friction is
- Zero
- 5
- 7
- 0
28. When the velocity is doubled, the banking angle should be
- ½
- ¼
- 4 time
- 8 time
29. The area under force-displacement graph is equal to
- Impulse
- Momentum
- Work done
- None of these
30. The slope of the kinetic energy versus position vector gives the rate of change of
- Work
- Force
- Velocity
- Momentum
31. A force 10 N is applied on a body for 3 seconds and the corresponding displacement is 6 m. the power of the source is
- 20 W
- 30 W
- 40 W
- 50 W
32. The moment of inertia of a body does not depend upon its
- Different orientations of axis
- Nature of distribution of mass
- Angular velocity
- Axis of rotation
33. The reduced mass of two particles having masses m and 2 m is
- 2m
- 3m
- 2m/3
- m/2
34. An earth satellite is moving around the earth in a circular orbit. In such a case, which of the following is conserved?
- Velocity
- Linear momentum
- Angular momentum
- None of these
35. The value of gravity ‘g’ on a planet
- Depends on its mass
- Depends on its size
- Depends on the mass of a body on the planet
- Both a and b
36. The angle between the equatorial plane and the orbital plane of a polar satellite is
- 0°
- 90°
- 120°
- 180°
37. Elastic limit is equal to
- Stress
- Strain
- Young’s modulus
- Modulus of rigidity
38. Which is not the unit of pressure?
- Pascal
- Nm-2
- Torr
- N
39. Equation of continuity expresses the law of conservation of
- Mass
- Momentum
- Energy
- None of these
40. The angle of contact between glass and mercury is 140°. The shape of meniscus of mercury in a tube of glass is
- Concave upward
- Plane
- Convex upward
- None of these
41. S.I. unit of the temperature gradient is
- Km
- Km-1
- K-1 m
- K-1 m-1
42. The angle of contact of a liquid with a solid depends on
- Liquid only
- Solid only
- Both on solid and liquid
- None of these
43. The internal energy of an isolated system
- Increases
- Decreases
- Remains the same
- None of these
44. For an ideal gas
- CP < CV
- CP = CV
- CP > CV
- CP =C = 0
45. The average kinetic energy of a molecule of a gas is directly proportional to the
- Pressure of the gas
- Volume of the gas
- Temperature of the gas
- Mass of the gas
46. Absolute zero is considered at which
- Gas becomes liquid
- Molecular energy is zero
- Random motion of molecular occurs
- All molecular motion ceases
47. Which of the following cannot be in the same direction for a simple harmonic oscillation?
- Position and velocity
- Position and acceleration
- Velocity and Acceleration
- None of these
48. The temperature at which speed of und in air becomes double of its value at 27°C is
- 54 °C
- 327 °C
- 927 °C
- 1000 °C
49. How many times more intense is a 60 dB sound than a 30 dB sound?
- 2
- 4
- 100
- 1000
50. On moving a charge of 20 C, by 2 cm, 2j of work is done. Then, the potential difference between the points is
- 1 V
- 8 V
- 2 V
- 5 V
51. The work done in placing a charge of 8 * 10-18 coulomb on a capacitor of capacity 100 microfarad is
- 16* 10 -32joule
- 1 * 10-26 joule
- 4*10-10 joule
- 32 * 10-32 joule
52. In a charged capacitor, the energy resides
- On the positive plate
- In the field between the plates
- Around the edge of the capacitor plates
- None of these
53. If one penetrates a uniformly charged sphere, the electric field strength
- increase
- decreases
- remains the same as at the surface
- in zero at all points
54. If a long hollow copper pipe carries a current, the magnetic field produced will be
- inside the pipe only
- outside the pipe only
- neither inside nor outside the pipe
- both inside and outside the pipe
55. To convert a galvanometer into a voltmeter
- a high resistance is connected in parallel
- a low resistance is connected in series
- a low resistance is connected in parallel
- a high resistance is connected in series