BIOLOGY

IMPORTANT MULTIPLE CHOICE QUESTIONS
(Produced from the memory of students)

1. Streptomycin is produced by -
   a. Streptomyces Grisens
   b. Streptomyces scabies
   c. Streptomycin fradiac
   d. Streptomyces Venzeualae
   [Ans :a]
   
2. Respiration takes place in
   (a) Nucleus      (b) Endoplastic reticulum
   (c) Mitochondria (d) Ribosome
   [Ans : c]
3. Sexual reproduction in Paramecium is by
   (a) Conjugation      (b) Apomixis
   (c) Binary fission    (d) Rejuvenation
4. In cockroach which of the following constitutes the tongue :
   a. Maxilla    b. Mandible    c. Labium    d. hypo pharynx
5. Botanical name for rice plant is
   a. Cynodon    b. Ephedra    c. Oryza Satira    d. Tritium
   [Ans :c]
   
6. LSD is obtained from :-
   a. Papaver Somniferun b. Cannabis Sative
   c. Claviceps             d. Solanum nigrum
   [ Ans :c]
7. The Causative organism of rabies disease is : (DPMT)
   a. Bacterium      b. Virus      c. Yeast      d. Algae
   [Ans b]
8. Which part of plant cannot be infected by virus - (CPMT)
   a. Shoot apex      b. Pith     c. Phloem     d. Cortex
   [Ans : a]
9. The Bacteria which reduce the fertility of soil is
   a. Bacillus denitrificans    b. Azatobacter sp
   c. Nitrosomonas             d. Nitrobacter
   [Ans: a ]
10. Which of the following is called "Pond-silk "-
    a. Anabaena     b. Spirogyra     c. Nustoc     d. Laminaria
    [Ans: b]
11. Meiosis Occurs in Zygote of (A.I.I.M.S)
    a. Puccinia b. Funaria c. Chlamydomonas d. Dryopteris
    [Ans: c]
12. A worker famous for his work on the wheat rust problem was : (A.I.I.M.S C.P.M.T]
    a. E.A. Bessey      b. A.F. Blakeslee
    c. H.C. Bold        d. K.C. Mehta
    [Ans - d]
13. Ringworm of scalp is caused by
    a. Aspergilla's b. Microsporum c. Penicillum d. Alternaria
    [Ans :b]
14. Which is the largest Bryophyte
    a. Porella     b. Dawsonia     c. Pellia     d. Polytri chum
    [Ans -b]
15. If frog is transferred from 200 C to 300 C, the body temperature will change up to (C.P.M.T, A.F.M.C)
    a. 30⁰ C     b. 25⁰ C     c. 20⁰ C     d. No change
    [Ans - b]
16. Which one is not soual
    a. Wasp     b. Honeybee     c. Locust    d. Ant
    [Ans :c]
17. A snake has no middle ear, it perceives sound through (PMT. Vellore) a. Skin    b. Snout    c. Tongue    d. none of the above
    [Ans: a]
18. Human skeleton is made of - (JIPMER, CPMT)
    a. 406 bones     b. 306 bones     c. 206 bones     d. 106 bones
    [Ans :- c]
19. Which one of the following is not a salivary gland : (APML)
    a. Brunner's Gland     b. Lingual     c. Parotid     d. Maxillary
    [Ans :a]
20. Basic unit of protein is - (CPMT)
    a. Peptides   b. Peptones   c. Helical strand   d. Amino acid
    [Ans : d]
21. The blood clotting factor vitamin is (CPMT - UP)
    (a.) A     (b). C     (c). B6     (d). K
    [Ans : d]
22. A person with antigin 'a' and 'b' and no antibodies belongs to blood group (CPMT)
    a. A      b. B     c. AB     d. 0
    [Ans :c]
23. Twelve pair of ribs and cranial nerves is found in: (PMT -DELHI)
    a. Lizard     b. man     c. Fish     d. Frog
    [Ands: b]
24. One mole of glucose, through aerobic respiration produces: (Manipal'99)
    a. 32 ATP     b. 36 ATP     c. 38 ATP     d. 40 ATP
    [Ans :c]
25. Genetic dwarfness can be overcome by treating with - (Manipal)
    a. Auxin     b. Ethylase     c. Gibbercllins     d. Anti Gibberellins
    [Ans :c]
26. Heterothallism is showed by (Manipal)
    a. Cycas     b. Ricinus     c. Baeterium     d. Rhizopus
    [Ans: d]
27. Jacobson's organ is concerned with (APMC-Pune)
    a. Sight     b. Touch     c. Smell     d. Borrowing
    [Ans :c]
28. Sickle cell Anemia is an example of : (AFMC 1999)
    a. Pleotropy b. Co-dominance c. Episasis d. Incomplete dominance
    [ Ans: a]
29. Eyes on potato tubers present (BHU)
    a. Scans   b. root base    c. Inter nodes    d. nodes with buds
    [Ans :d]
30. Which of the following RNA is essential for protein synthesis(BHU)
    a. M-RNA     b. E-RNA     c. R- RNA     d. S-RNA
    [Ans : a]

PHYSICS

1. A cube has numerically equal volume and surface area. The volume of such a cube is (CPMT - UP)
   (a.) 216 units     (b) 1000 units     (c.) 2000 units     (d) 3000 units [Ans: a]
2. The measured mass and volume of a body are 22.42 gm and 4.7 cm3 respectively. With possible errors 0.01 gm and 0.1 cm3 the maximum error in density is about (C.P.M.T, BHU, UP)
   (a.) 0.2%     (b) 2%     (c.) 5%     (d) 10%     
   [Ans: b]
3. The moment of inertia of a body comes into play (P.M.T- Pondicherry (JIPMER)
   a) In motion along curred path
   b) In linear motion
   c) In rotational motion
   d) None of the above
   [Ans: c]
   
4. A ring rolls on a plane surface. The fraction of its total energy associated with its Rotation is :
   a) 1/2     (b) 1/1     (c) 1/4     (d) 2/1
   [Ans: a]
5. The identical cylinder A & B are released from the top of an inclined plane such that a rolls down without shipping and B ships down without rolling which cylinder reaches the base first ? (AIIMS)
   (a.) A     (b.) B     (c.) Both     (d.) None of the above
   [Ans : b]
6. Cream gets separated of the milk when it is churned because of: (CMC VELLORE)
   a) Gravitational force     b) Cohesive force
   c) Centrifugal force       d) Frictimal force
   [Ans : c]
7. An air bubble and a steel ball in water - (PMT Pondicherry (J.I. PMER)
   a) Attract each other      
   b) Repel each other
   c) Neither attract nor repel each other
   d) May attract or repel depending upon size.
   [Ans: b]
8. The ration of inertial mass gravitational mass is equal to : (C.P.M.T)
   a) ½     b) 1     c) 2     d) No fixed number
   [Ans : b]
9. If a planet exists whose mass and radius were both half that of the earth the acceleration due to gravity at it's surface would be
   a) 8 ft / Sec²     b) 16 ft / Sec²     c) 64ft/ Sec²    d) 32ft / Sec²
   [Ans : c]
   
10. What is the S.2 unit of poisson's ratio (A.I.I.M.S)
    (a) Kg m³
    (b) Nm²
    (c) Jm ¹
    (d) being a dimensionless number it has no unit.
    [Ans: d]
11. With the help of Kinetic theory of gases we cannot deduce : (MBBS - HP)
    a) Charle's law       b) Boyle's Law
    c) Jonle's Law        d) Graham's Law
    [Ans : c]
12. One of the following gas thermometers, the one which can be used for measuring very low temperature is
    a) Air     b) Hydrogen     c) Oxygen     d) Helium
    [Ans : d]
13. Apparent expansion of a liquid is (CMC Vellore)
    a) Equal to its real expansion
    b) More than its real expansion
    c) Less than its real expansion
    d) Double its real expansion
    [Ans :c]
    
14. Boyle's law holds for an ideal gas during :
    a) Isobaric changes      b) Isothermal changes
    c) Isochoric changes    d) Isotropic changes
    [ Ans : b]
15. Charle's Law holds for an ideal gas during
    a) Isobaric changes       b) Isothermal changes
    c) Isochoric changes     d) Isotropic changes
    [ Ans : a]
16. The value of absolute temperature in Fahrenheit scale is (Osmania University)
    a) 273 0 F b) - 459.40F c) ) 00 F b) 182.70F
    [Ans : b]
17. When you stand in a cold room in front of an open fire, you will feel the heat. This process is called - (CMC Vellolre)
    (a) Convection     (b) conduction
    (c) Radiation        (d) Newton's law of cooling
    [Ans : c]
18. Compressed air coming out from a punctured ball becomes cooler because of the
    a) Adiabatic compression
    b) Adiabatic expansion
    c) Isothermal expansion
    [Ans : b]
19. The radius of earth is 6.37x106m and Gravitational constant is 6.67x10-11N/m2kg (AFMC - PUNE)
    (a ) 6 x 10¹⁸ Kg       (b) 6 x 10²⁴ Kg
    (c) 6 x 10²⁶ Kg        (d) 6 x 10³¹Kg
    [Ans : b]
20. A resonance air column of length 20 cm resonates with tuning form of frequency 250 H2. The speed of air is (AFMC - PUNE)
    a) 300 mls        b) 200 mls
    c) 150 mls        d) 75 mls
    [Ans : b]
21. The direction of the null points are on the equatorial line of a bar magnet, when the North pole of the magnet is pointing (AFMC - PUNE)
    a) North         b) South        c) East        d) West
    [Ans : a]
22. Kinetic energy of an electron accelerated in a potential difference of 100 V is - (AFMC)
    a) 1.6 x 10^-17J
    b) 1.6 x 10^-21J
    c) 1.6 x 10^-29J
    d) 1.6 x 10^-34J
    [Ans : a]
23. A battle of mass 0.1 Kg is fired with a speed of 100 mls, the mass of gun being 50 kg, the velocity of recoil is [Manipal]
    a) 0.2m/sec     b) 0.1m/sec     c) 0.05 m/sec     d) 0.05m/sec
    [Ans: a]
24. Hydrogen balloon will carry which of the following more easily : (Manipal)
    a) 10 kg cotton     (b) 10 kg Iron
    c) 10 kg feather    (d) all of these
    (Ans : d)
25. The moment of momentum is :
    a) Linear momentum     b) couple
    c) Torque          d) Angular momentum
26. Hooke's Law essentially defines
    a) Stress     b) Strain     c) Yield point     d) elastic limit
    [Ans : d]
27. The amplitude of an alternating voltage is 120 volts. What will be its r.m.s. Value
    a) 56.5V       b) 70.7V      c) 84.8 V      d) 101.3V
    [Ans:c]
28. A man suffering from short sight is unable to see objects distinctly at a distance greeter than 2m . The power of less required to correct this defect should be (BHU)
    a) -0.50 D     b) -2D     c) +0.50d     d)+2D
    [Ans : a]
29. The region of atmosphere above troposphere is known as (BHU)
    a) Stratosphere b) Ionosphere c) Upper sphere d) Lithosphere
    [Ans : a]
30. The minimum deviation produced by a glass prism of angle 400 is 360 Refraction index of glass is
    a) 1.8     b) 1.4     c) 1.2     d) 1.1
    [Ans : a]

CHEMISTRY

1. The noble gas used in radio therapy is
   (a) He (b) Ar (c) Xe (d) Rw [Ans: - d]
2. Which of the following is colloidal in nature
   (a) Blood (b) Milk (c) tail of comets (d) all of the above
   [Ans: - d]
3. PH of a 0.01 N Hcl solution will be
   (a) 3 (b) 2.0 (c) 0.02 (d) 4.0 [Ans: - b]
4. The metal used in Wurtz's reactim is
   (a) Zinc (b) Sodium (c) Magnesium (d) Calcium [Ans - b]
5. Which of the following is not used in the prevention of rust on iron:
   (a) Applying grease (b) Painting (c) Galvanizing (d) Annealing [Ans: -d]
6. 'Strike anywhere' matches contain on the lip of the stick
   (a) White P (b) Red P (c). P205 (d) None [Ans: b]
7. Beryllium is placed above magnesium in II group 'Beryllium dust, therefore When added to mgcl 2 solution wills it?
   (a) Have no effect (b) Precipitate Mg (c) Precipitate Mgo (d) Lead to dessolution of BC [Ans: a]
8. Bleaching caused by SO₂gas is
   (a) Temporary (b) Permanent (c) Incomplete (d) all is incorrect [Ans: a]
9. Currency notes can be marked with an invisible ink which
   (a) Turns a red on adding alkali (b) Turns blue on adding acid c) Show up in V.V. light (d) is attracted by a magnet [Ans: c]
10. Fused ironic compounds are
    (a) Insulators (b) Used as semi conductors (c) Good Conductor of electricity (d) Bad conductor of electricity [Ans: c]
11. Phosgene and ammonia react to form
    (a) Carbolic acid (b) Carbonic acid (c) Carbomide (d) none of the above [Ans: c]
12. Bees wax is
    (a) Myricyl Cero Tate (b) Cetyl palmitate (c) Myricyl Palmitate (d) None [Ans: c]
13. According to Dalton's atomic theory atoms of different elements are-
    (a) Similar (b) Identical (c) Different (d) almost identical [Ans: c]
14. Law of constant composition is same as law (B.H.V) of
    (a) Multiple proportions (b) definite proportions (c) Conservation of mass (d) Conservation of energy [Ans: b]
15. Which of the following electronic configuration is of noble gas? (.P.M.T, Pondicherry)
    (a) 1s²2s²2p⁶ (b) 1s²2s²2p⁶3s² (c) 1s²,2s²,2p⁵ (d) 1s², 2s²,2p³ [Ans:a]
16. Which of the following electronic configuration is not possible? (D.P.M.T)
    (a) 2p⁶ (b) 2d⁵ (c) 3s' (d) 4f1² [Ans : b]
17. Using arbitrary energy units, it is calculated that 800 arbitrary units (a.u) are needed to transfer an electron in a hydrogen atom from the most stab Bohr orbit to a large distance from the nucleus. (A.I.I.M.S)
    
    The energy required to excite an electron from the 2nd Bohr orbit to the n = a is
    (a) 50 a.u (b) 100 a.u (c) 200 a.u (d) 400 a.u [Ans: c]
18. Transition elements are - (PMT - Bangalore)
    (a) Fe, Co. Ni (b) Li, Na, K (c) Ce, Sr, Be (f) F, Cl, Br [Ans: a]
19. At 30⁰C and 40⁰C the Vapour pressures of a liquid are 0.025 and 0.050 atm respectively. Calculate the leat of vaporization of the liquid. (Andhra)
    (a) 140.06 Cal / mol (b) 130.60 Kcal (c) 140.8 Kcal (d) 216.0 K cal [Ans: c]
20. Brown ring test is used to detect
    (a) Bromide (b) Iodide (c) Nitrate (d) Iron [Ans: c]
21. Turnbull's blue is a compound
    (a) Ferricyanide (b) Ferrous ferricyanide (c) Ferrous cyanides (d) Ferri ferrocyanide [Ans: b]
22. Volume occupied by 4.4 g of CO2 is (MANIPAL 1999) (a) 2.24 Lts. (b) 22.4 Lts. (c) 224 Lts (d) 22.4x102 Lts [Ans: a]
23. What is the oxidation number of Iron is (MANIPAL 1999)
    Fe [(H₂ 0) 5 (NO)+] SO₄ (a) +1 (b) +4 (c) + 5 (d) +7 [Ans: a]
24. Natural rubber is a polymer of (Manipal - 1999)
    (a) Isoprene (b) ethylese (c) Acrylic Acid (d) 1,4, butadiene [Ans: a]
25. Aufbau principle is obeyed in which of the following electronic configuration?
    (a) 1S² 2S² 2P⁶ (b) 1S² 3p³ 3S² (c) 1S² 3S² 3p⁶ (d) 1S² 2S² 3S² [Ans: a]
26. Carnalite has which of the following composition? (AFMC - 1999)
    (a) Fe₃0₄ (b) Na₃AlF₆ (c) Na₂AlF₅ (d) Kcl mgcl₂ 6H₂0 [Ans: c]
27. Nylon - 66 is made by using - (AFMC - 1995)
    (a) Phenol (b) Adipic acid (c) Benzaldehyde (d) Succinic acid [ Ans : b]
28. Gold number is associated with: (BHU - 1999)
    (a) Electrophoresis (b) purple of caseirs (c) Protective colloids
    (d) amount of pure gold [ Ans :c ]
29. The molarity of pure water is: - (BHU - 1999)
    (a) 1 (b) 18 (c) 34.3 (d) 55.3 [Ans: d]
30. Terylene is used for making (BHU-1999)
    (a) Sails (b) Fabrics (c) Seat belts (d) All of these
    [Ans:d]