Miscellaneous MCQ on Science
Test series no. 6
1. Select the pair of fibres obtained from the stem of a plant
(A) Coir and Flax
(B) Jute and Kapok
(C) Flax and Jute
(D) None of the above
2. A free neutron decays spontaneously into a proton, an electron and ………
(A) A neutrino
(B) An antineutrino
(C) None of the above
(D) Both A and B
3. What happens when an oxygen atom becomes an oxygen ion?
Choose the correct option: –
(a) It’s atomic mass decreases.
(b) It’s atomic number increases.
(c) It’s atomic number remains same.
(d) It’s mass number increases.
(A) (a) and (c)
(B) (b) and (d)
(C) (3) only (d)
(D) only (c)
4. A rainbow has a circular shape because of ……….
(A) the earth is spherical
(B) the sun is spherical
(C) the raindrops are spherical
(D) our eyes are spherical
5. Which of the following process/es release heat?
(i) Condensation (ii) Vaporisation (iii) Freezing (iv) Melting
Correct option is
(A) only (iv)
(B) only (i)
(C) (ii) and (iii)
(D) (i) and (iii)
6. Which information is not conveyed by a balanced chemical equation?
(A) Physical states of reactants and products
(B) Number of atoms/molecules of the reactants and product formed
(C) Whether a particular reaction is actually feasible or not
(D) Symbols and formulae of all the substances involved in a particular reaction
7. In fluid mosaic model of plasma membrane …………..
(A) Phospholipids form a bilayer that provides fluidity.
(B) Proteins form a middle layer.
(C) Upper layer is non-polar and hydrophilic.
(D) Polar layer is hydrophobic
8. Which of the following statement is not true regarding molecules?
(A) The molecules in a liquid are arranged in a regular pattern.
(B) The molecules in a gas exert negligibly small forces on each other, except during collisions.
(C) The molecules in a solid vibrate about a fixed position.
(D) The molecules of a gas occupy all the space available.
9. Which of the following statement is not true regarding the characteristic of matter?
(A) Particles of matter diffuse into each other on their own.
(B) Particles of a matter are randomly moving in all the directions.
(C) Kinetic energy of the particles increases with a rise in temperature.
(D) Kinetic energy of the particles in all matters remains the same at a particular temperature.
10. Which of the following is not chiefly a Rabi crop?
(A) Groundnut and rice
(B) Gram
(C) Mustard
(D) Pea
11. The evaporation of water increases under the following conditions
(A) Increase in temperature, addition of common salt
(B) Increase in surface area, rise in temperature
(C) Increase in surface area, decrease in temperature area,
(D) Decrease in surface area, increase in pressure
12. Which of the following property does not describe a compound?
(A) It cannot be separated into its constituents by physical means.
(B) It is mixed in any proportion by mass
(C) It is a pure substance
(D) It is composed of two or more elements.
13. Which scientist gave the concept of fixed energy levels around the nucleus?
(A) J. J. Thomson
(B) Neils Bohr
(C) Ernest Rutherford
(D) William Crooks
14. The element which is not common between the compounds called baking soda and soda ash?
(A) Oxygen
(B) Hydrogen
(C) Sodium
(D) Carbon
15. Microscopic aquatic organisms lacking locomotory ability and drifting with water currents are
(A) Plankton
(B) Necton
(C) Saston
(D) All of the above
16. A very thin transparent film of soap bubble (thickness → 0) is seen under reflection of white light. Then the colour of the film appear to be ……..
(A) Pink
(B) Red
(C) Black
(D) White
17. Soaps are formed by the reaction of ……….. with caustic soda.
(A) carbonyl compounds
(B) alcohols
(C) phenols
(D) esters
18. Select the incorrect statement with reference to the collenchyma.
(A) Chloroplasts may be present in collenchyma.
(B) Collenchyma allows easy bending without breakage of the young stem
(C) Protoplasm is present in collenchyma.
(D) Its cells are thickened at the corners due to deposition of lignin.
19. Which of the following contains maximum number of molecules?
(A) 1 g H2
(B) 1 g N2
(C) 1 g CO2
(D) None of the above
20. ………………………planet has the largest number of satellites?
(A) Jupiter and Saturn
(B) Mars ad Jupiter
(C) Venus and Saturn
(D) Neptune and earth
21. The element that is not common between the compounds called baking soda and soda ash?
(A) Hydrogen
(B) Oxygen
(C) Carbon dioxide
(D) Nitrogen
22. Which of the following crop is not suitable for loamy soil?
(A) Wheat
(B) Pulses
(C) Cotton
(D) Paddy
23. What is true about Bt (Bacillus thuringiensis) strain?
(A) The concerned Bacillus has anti-toxins.
(B) The activated toxins enter the ovaries of the pest to sterilize it and thus prevent its multiplication
(C) The Bt-strains have been used for designing novel Bioinsecticidal plants.
(D) Bt-toxins exists as active toxins in the Bacillus
24. Which of the following metals is present in the anode mud during electrolytic refining of copper?
(A) Aluminium
(B) Gold
(C) Sodium
(D) Copper
25. The amino acid coded by the start codon for protein synthesis is ……….
(A) Methionine
(B) Tryptophan
(C) Arginine
(D) Valine
26. Which of the following law successfully explained by Dalton’s atomic theory?
(i) Law of conservation of mass
(ii) Law of constant proportion
(iii) Law of radioactivity
(iv) Law of multiple proportion
(A) (i), (ii) and (iii)
(B) (i), (ii) and (iv)
(C) (ii), (iii) and (iv)
(D) (i), (iii) and (iv)
27. Which is not correctly matched pair?
(1) Agrobacterium – Ti Plasmid
(2) Cosmid – Vector DNA
(3) Rhizobium – Asymbiotic N2 fixer
(4) Albinism – Autosomal recessive gene
(A) option 4
(B) option 1
(C) option 2
(D) option 3
28. In which of the following pairs are the element found in the same period of the periodic table?
(A) Sulphur and Selenium
(B) Potassium and Manganese
(C) Calcium and Germanium
(D) Both B and C
29. Which of the following is correctly matched is
(1) Neanthes – Botryoidal tissue
(2) Chaetopterus – Lugworm
(3) Earthworm – Suckers
(4) Heteronereis – A sexual phase
(A) option 1
(B) option 2
(C) option 3
(D)option 4
30. Which one of the following is wrongly matched?
[1] Tendon − Connective tissue
[2] Smooth muscles − Involuntary muscle
[3] Red muscles − Myoglobin
[4] Troponin − Fibrous protein
(A) option [1]
(B)option [2]
(C)option [3]
(D) option [4]
31. If the radius of the earth were to shrink by 1%, the density remaining constant, the acceleration due to gravity on the surface of the earth will be
(A) zero
(B) infinite
(C) g
(D) less than g
32. Select the hierarchy (descending) of the taxonomic ranks using the codes given below
A. Order B. Genus C. Class D. Species E. Family
(A) CAEBD
(B) BDEAC
(C) CEABD
(D) ACEDB
33. A banyan tree’s life time is ~300 years. If a fully grown banyan tree is burnt in a thermal power plant to generate energy and at the same time a new tree is planted. Choose the correct option in this context.
(A) There is no oxygen involved in this process.
(B) The process will become carbon neutral only after many years
(C) The process is carbon neutral in immediate time frame
(D) There is no carbon involved in this process
24. Select the correct statement:
[1] The storage of energy at consumer level is known as secondary productivity.
[2] In any ecosystem maximum energy is stored at producer level.
[3] Ecosystem term was coined by Odum.
[4] Rate at which organic molecules are formed in an autotroph is called gross primary productivity
(A) [1], [2], [4]
(B) [1], [2], [3]
(C) [3] and [4]
(D) All are correct
35. Which of the following is not one of the three primary types of soil based on its texture?
(A) Clay
(B) Silt
(C) Loam
(D) Clay
36. Which of the following salts has no water of crystallization?
(A) Blue vitriol
(B) Washing soda
(C) Baking soda
(D) Gypsum
37. The adaptor molecule in the process of translation is
(A) rRNA
(B) snRNA
(C) tRNA
(D) All of the above
38. During smelting an additional substance is added which combines with impurities to form a ……….. fusible product.
(A) Mud
(B) Gangue
(C) Slag
(D) Flux
39. Statements that are incorrect for carbon compounds?
a. Most carbon compounds are good conductor of electricity.
b. Most carbon compounds have ionic bonds.
c. Force of attraction between molecules of carbon compounds is not very strong.
d. Methanol, acetic acid and acetone are carbon compounds.
(A) a and d
(B) a and b
(C) c and d
(D) b and c
40. Which of the following living cells have perforations on their cell walls?
[1] Bast cells [2] Vessels [3] Tracheids [4] Sieve cells
(A) Bast cells
(B) Vessels
(C) Tracheids
(D) Sieve cells
41. The earth’s part responsible for causing earthquakes is ………..
(A) Crust of earth
(B) Mantle of earth
(C) Outer core of earth
(D) Both A and B
42. Match column I with column II
Column I Column II
I. X-Rays (A) 1 Å
II. Visible light (B) 2000 Å
III. Ultraviolet radiation (C) 5000 Å
IV. Infrared radiation (D) 10000 Å
(A) I(D), II(C), III(B), IV(A)
(B) I(A), II(C), III(B), IV(D)
(C) I(A), II(B), III(C), IV(D)
(D) I(B), II(D), III(A), IV(C)
43. Cells that maintain marrow cells are celled ………….
(A) Osteocytes
(B) Marrowclast
(C) Osteoclast
(D) Chondrocytes
44. Which of the following are also considered to be the states of matter?
(i) Plasma (ii) Platelets (iii) BEC (iv) BHC
(A) (ii) and (iii)
(B) (i) and (iii)
(C) (iii) and (iv)
(D) None of the above
45. Which of the statement is incorrect with reference to green manure
(A) Green manure is rich in organic matter and nutrients.
(B) Green manure is primarily used to enrich the soil in phosphorus.
(C) Green manure is the undecomposed plant material
(D) All are incorrect
46. Find the incorrect pair of food article and the plant part from which it is obtained?
(A) Wheat – Fruit
(B) Ginger – Root
(C) Turmeric − Stem
(D) Tea − Leaves
47. The endothelium of blood vessels is ……….
(A) Squamous epithelium
(B) Columnar epithelium
(C) Cuboidal epithelium
(D) Ciliated epithelium
48. Nature of calcium phosphate present in tooth enamel is called ……….
(A) acidic
(B) basic
(C) neutral
(D) amphoteric
49. What will be the pressure on a swimmer 10 m below the surface of a lake?
(A) 2 atm
(B) 4 atm
(C) 6 atm
(D) 10 atm
50. Which of the following does not form an acidic salt?
(A) Phosphoric acid
(B) Nitric acid
(C) Hydrochloric acid
(D) Sulphuric acid
51. Intercalary meristems are the primary meristems, because ………
I. They appear early in the life of a plant.
II. The contribute to the formation of the primary plant body.
(A) Both I and II are correct
(B) Both I and II are incorrect
(C) Only II is correct
(D) Only I is correct
52. When crystals of lead nitrate are heated strongly in a dry test tube
(A) a brown residue is left
(B) white fumes appear in the tube
(C) crystals immediately vaporise
(D) a yellow residue is left
53. Which of the following set can be used for the denaturation of ethyl alcohol?
(A) Methanol, Water, Copper Chloride
(B) Propanol, Vinegar, Potassium Permanganate
(C) Methanol, Pyridine, Copper Sulphate
(D) Vinegar, Pyridine, Water
54. In which of the following conditions, the distance between the molecules of hydrogen gas would increase, filled in a container?
(i) Some hydrogen gas leaking out the container.
(ii) Increasing the volume of container of hydrogen gas.
(iii) Increasing pressure on hydrogen gas contained in a closed container.
(iv) Adding more hydrogen gas to container without increasing the volume of the container.
(A) (ii) and (iii)
(B) (ii) and (iv)
(C) (i) and (ii)
(D) (i) and (iii)
55. Select wrong statement from the following
(A) Iron necessary for human body is abundantly found in green vegetables.
(B) Zinc is one of the essential trace elements required for human body
(C) Fat and minerals are not the essential nutrients for a balanced diet of humans.
(D) The food that generate energy in the body after complete oxidation are in the form of carbohydrates, fat and proteins.
56. Which one of the following set phenomena would increase on raising the temperature?
(A) Evaporation, solubility, compression of gases
(B) Evaporation, diffusion, expansion of gases
(C) Diffusion, solubility, compression of gases
(D) Condensation, diffusion, compression of gases
57. An atom with 3 protons and 4 neutrons will have a valency of
(A) 1
(B) 2
(C) 3
(D) 4
58. Which oxides of Nitrogen are generated by burning of fossil fuel ?
(A) NO and NO2
(B) NO2, NO3 and N2 O5
(C) N2O3 and N2O5
(D) None of the above
59. In an accident in a school lab, a large sample of aqueous sodium hydroxide was split. Which substance when added in excess, is not suitable for neutralizing the alkali spill?
(A) Sulphuric acid
(B) Oxalic acid
(C) Citric acid
(D) Sodium hydrogen sulphate
60. Which one of the following statements is totally wrong about the occurrence of notochord
(A) It is present only in the tail of ascidian larva.
(B) It is replaced by a vertebral column in adult toad.
(C) It is not persistent throughout life in chondrichthyes.
(D) It persists throughout life in Amphioxus and extends from head to tail.
61. If the amplitude of loudness of sound becomes twice, then loudness increases by a factor of
(A) 2
(B) 4
(C) 8
(D)16
62. Which of the following statements are incorrect about the structure of an atom?
(i) The atom as a whole is neutral.
(ii) The atom is an indivisible particle.
(iii) The whole mass of an atom is concentrated in the nucleus.
(iv) All the atoms are stable in their basic state.
(A) (ii) and (iii)
(B) (ii) and (iv)
(C) (iii) and (iv)
(D) (i) and (iv)
63. Select the essential parts of a flower using the codes given below.
A. Petals B. Pistil C. Peduncle D. Stamens E. Sepals
(A) A and E
(B) A and C
(C) B and D
(D) C and D
64. Which of the following is not a member of Kingdom Monera?
[1] Blue green algae [2] Mycoplasma [3] Slime moulds [4] Methanogens
(A) Option [1] and [2]
(B) Option [3]
(C) Option [4]
(D) None of the above
65. Which of the following statement is wrong?
(A) An octamer of histones is present in nucleosome.
(B) Histones are rich in lysine and arginine.
(C) The pH of histones is less than 7
(D) Five types of histones are involved in DNA packaging.
66. Which of the following is not a xerophytic adaptation to reduce transpiration?
(A) Stems take over the function of photosynthesis.
(B) Presence of hairs in stomatal pits.
(C) Presence of keratin layer on the leaf surface
(D) Presence of waxy coating on leaf surface.
67. Range of the gravitational force is
(A) 10-14 m
(B) Infinite
(C) 1 m
(D) 10-15m
68. Bioluminescence occurs in
(A) Coelenterata and Ctenophora
(B) Ctenophora and Porifera
(C) Porifera and Coelenterata
(D) All options are right
69. Lichens are very good pollution indicators. They are made up of
(A) Prions and Algae
(B) Fungi and Prions
(C) Phycobiont and Micobiont
(D) Prions and Euglenoids
70. Which of the following is not appropriate to understand science at upper primary stage?
(A) Observing recordings
(B) Hands on experience and
(C) Plotting graphs things
(D) Learn the subject through abstraction
71. Gibbons, proboscis monkeys and Rhinoceros found in which of the following subregion of oriental Zoogeographical region?
(A) Indian subregion
(B) Ceylonian subregion
(C) Indo-China subregion
(D) Indo-Malayan subregion
72. The chief producers in oceans are
(A) Dinoflagellates
(B) Diatoms
(C) Euglenoids
(D) Planktons
73. In following which is element of physical science lesson?
(A) Title of lesson
(B) Introduction
(C) Presentation
(D) All options are right
74. The wall of alimentary canal possess four layer’s. Which of the following is the correct sequence from outside to inside?
(A) Mucosa → Muscularis → Submucosa → Serosa
(B) Serosa → Muscularis → Submucosa → Mucosa
(C) Submucosa → Mucosa → Muscularis → Serosa
(D) Mucosa → Submucosa → Muscularis → Serosa
75. A light is refracted through a prism. The angle of deviation is
(A) The angle between incident ray and emergent ray
(B) The angle between incident ray and refracted ray
(C) The angle between refracted ray and emergent ray
(D) The angle of prism
76. In which of the following is developing stage of process of action research?
(A) Developing an action plan
(B) Implementation plan and collecting data
(C) Identified and limiting the topic
(D) Sharing and communicating the results
77. When an electron is passing through magnetic field, then
(A) Its velocity is increased
(B) Its energy is increased
(C) Both velocity and energy are increased
(D) Velocity and energy of electron remain constant
78. The minimum distance of distinct vision for young adult with normal vision is about
(A) 2.5 cm
(B) 25 cm
(C) 2.5 m
(D) 25 m
79. Which one of the following is co-curricular activity in science teaching?
(A) Science club
(B) Audio-visual aids
(C) Text-book
(D) Blackboard
80. In the entire process of glycolysis 4 phosphorylation occurs in two of the following steps
I. 1-3 Diphosphoglyceric acid → 3-phosphoglyceric acid
II. 1.Phosphoenol Pyruvic acid → Pyruvic acid
III. 2-phosphoglyceric acid → phosphoenol pyruvic acid
IV. 3-phosphoglyceric acid → 2 phosphoglyceric acid
(A) Only I and II
(B) Only II and III
(C) Only III and IV
(D) Only I and IV
81. Match Column – I with their method of separation given in Column – II
Column I column II
(a) Oil mixed with water (i) Sieving
(b) Iron powder mixed with flour (ii) Decantation
(c) Salt mixed with water (iii) Magnet
(d) Kidney beans mixed with rice flour (iv) Evaporation
(A) (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
(B) (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
(C) (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
(D) (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
82. The scientist who first explained that cells divide and new cells are formed from pre-existing cells is
(A) Walther Flamming
(B) Rudolf Virchow
(C) Robert Hooke
(D) Schleiden and Schwann
83. Which of the following are exothermic processes?
(i) Reaction of water with quick lime
(ii) Dilution of an acid
(iii) Evaporation of water
(iv) Sublimation of (crystals)
(A) (i) and (ii)
(B) (ii) and (iii)
(C) (i) and (iv)
(D) (ii) and (iv)
84. Which is correct option in following?
(A) Sliding fraction > Rolling fraction > Static fraction
(B) Rolling fraction > Sliding fraction > Static fraction
(C) Rolling fraction > Static fraction > Sliding fraction
(D) Static fraction > Sliding fraction > Rolling fraction
85. Which one of following phylum possess closed circulatory system?
(A) Annelida
(B) Arthropoda
(C) Mollusca
(D) Echinodermata
86. Which of the following set of fishes are edible?
(A) Catla, Rohu, Hilsa and Pomfret
(B) Prawn, Sardines, Lobsters and Rohu
(C) Prawn, Lobsters, Crab and Oysters
(D) Rohu, Mackerel, Lobsters and Crab
87. What are the primary lymphoid organs in the body?
(A) Spleen and lymph nodes
(B) Tonsils and payer’s patches
(C) Thymus and appendix
(D) Bone marrow and thymus
88. Which of the following statement is not true?
1) When a candle burns, both physical and chemical changes take place.
2) Anaerobic bacteria digest animal waste and produce biogas.
3) Depositing a layer of iron on zinc is called galvanization.
4) Stretching of rubber band is a physical change.
(A) Option 1 and 2
(B) Option 3 and 4
(C) Option 1
(D) Option 3
89. When glomerular filtration rate falls which of the following hormone is released to stimulate glomerular blood flow?
(A) Renin
(B) ADH (Antidiuretic hormone)
(C) Angiotensin
(D) Aldosterone
90. Which of the following species is critically endangered reptile in India?
(A) Gharial
(B) Bengal Monitor
(C) Common Skink
(D) Green Turtle
91. Which one of these is a excitatory neurotransmitter?
(A) Glycine
(B) Acetylcholine
(C) Dopamine
(D) GABA (Gamma Aminobutyric Acid)
92. Which of the following is the correct sequence of succession in plants?
(A) Xerarch → Hydrarch → Mesic
(B) Xerarch → Mesic→ Hydrarch
(C) Hydrarch → Mesic → Xerarch
(D) None of the above
93. In which the following mirror is used as rear view in vehicle?
(A) Convex mirror
(B) Concave mirror
(C) Both convex and concave mirror together
(D) None of these
94. One of the following is hormone secreted from Heart
(A) Atrial Netriuretic Factor
(B) Noradrenaline
(C) Vasopressin
(D) Adrenaline
95. How many facial bones are there in the skull of human?
(A) 8
(B)14
(C) 23
(D) 3
96. Which of the following is the correct arrangement of the given metals in descending order of their reactivity?
Zinc, Iron, Magnesium, Sodium
(A) Zinc > Iron > Magnesium > Sodium
(B) Sodium > Magnesium > Iron > Zinc
(C) Sodium > Zinc > Magnesium > Iron
(D) Sodium > Magnesium > Zinc > Iron
97. The process of release of sperm from seminiferous tubule is known as
(A) Ejaculation
(B) Spermiation
(C) Spermatogenesis
(D) Spermiogenesis
98. Which of the following statement is correct with respect to flame?
(A) Outer zone of the flame is its hottest part where complete combustion takes place.
(B) Middle zone of the flame is of red coloured.
(C) Innermost zone of the flame is moderately hot.
(D) Innermost zone of the flame is of blue coloured.
98. In which of the following media speed of sound wave is greater?
1) Air 2) Glass (Flint) 3) Water 4) Vacuum
(A) Option 1) and 2)
(B) Option 2 only
(C) Option 4 Only
(D) None of the above
100. Which of the following statement is true?
1) Southern blotting technique is developed by Alvine et.al. (1979).
2) Northern blotting technique is developed by Broome and Gilbert (1978).
3) Western blotting technique is developed by Harry Towbin in 1979
4) E. M. Southern (1975) purified IgG.
(A) Option 1 and 2 is true
(B) Option 3 is true
(C) Option 4 is true
(D) All options are true
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