10th GSEB Science And Technology MCQ 2

10th GSEB Science and Technology MCQ Test 2

Quiz

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1. Which component obtained from refining of petroleum is used as Solvent in petrochemicals ?
   1.   Kerosene
   2.   Naphtha
   3.   Petrol
   4.   Tar
2. Which functional group is present in Carboxylic acid?
   1.   -HCO
   2.   -COOH
   3.   -COH
   4.   -OH
3. A multicellular organism which reproduces by budding is ................
   1.   Pharma
   2.   Hydra
   3.   Amoeba
   4.   None
4. The length of small intestine in a human adult is about .......... m.
   1.   1.6
   2.   6.5
   3.   6.1
   4.   5.6
5. What is the angle between any two covalent bonds in methane molecule?
   1.   109⁰ 28'
   2.   105⁰ 54'
   3.   119⁰ 28'
   4.   190⁰ 28'
6. In human digestive system, the enzymes pepsin and try sin are secreted respectively by which organs?
   1.   Stomach and Mouth
   2.   Stomach and livers
   3.   Stomach and salivary glands
   4.   Stomach and pancreas
7. What is prepared by Fisher-Tropsch method?
   1.   Ethanol
   2.   Acetic acid
   3.   Acetone
   4.   Acetaldehyde
8. The magnitude of an AC voltage used in India is ………and the frequency is ………...
   1.   220V, 60Hz
   2.   110V, 50Hz
   3.   110V, 60Hz
   4.   220V, 50Hz
9. What type of substance is NH₃ ?
   1.   Weak base
   2.   Strong base
   3.   Weak acid
   4.   Strong acid
10. What is the excretory unit in human being?
    1.   Kidney
    2.   Nephron
    3.   None
    4.   Urinary bladder
11. The structural and functional unit of the environment is known as ..............
    1.   food chain
    2.   ecosystem
    3.   None
    4.   environmental system
12. How many molecules of ozone can be decomposed by one atom of chlorine ?
    1.   1,00,000
    2.   10,000
    3.   10,00,000
    4.   1,000
13. Which of the following monomers is in polythene?
    1.   H₂O = H₂O
    2.   CH₃ = CH_3</sub
    3.   COOH = COOH
    4.   CH₂ = CH_2</sub
14. The spinal cord originates from ...............
    1.   Cerebrum
    2.   Cerebellum
    3.   Pons
    4.   Medulla oblongata
15. What is called the solution of ethanol containing 5% water?
    1.   Varnish
    2.   Vinegar
    3.   Perfume
    4.   Rectified spirit
16. Transfer of which substance in the phloem tissue increases osmotic pressure?
    1.   Sucrose
    2.   Water
    3.   Glucose
    4.   Sugure
17. Water gas is the mixture of which gases?
    1.   Carbon monoxide and Carbon dioxide
    2.   Carbon and Hydrogen
    3.   Carbon dioxide and hydrogen
    4.   Carbon monoxide and hydrogen
18. During which process blood is filtered out in Bowman's capsule?
    1.   Secretion
    2.   Filtration
    3.   Ultrafiltration
    4.   Alturation
19. Edaphic factors are included in .................
    1.   abiotic components
    2.   biotic components
    3.   antibiotic components
    4.   antiseptic components
20. Where is tricuspid value found in human heart ?
    1.   between right atrium and, right ventricle
    2.   between left atrium and left ventricle
    3.   between two atria
    4.   between two ventricles
21. If the pH of aqueous solution A, B, C and O are 1.9, 2.5, 2.1 and 3.0 then what will be the order of acidity?
    1.   A < C < B < O
    2.   O > C > B >A
    3.   O < C <B < A
    4.   O < B < C < A
22. Matter in the core region of the sun is in .......... state.
    1.   Mix
    2.   liquid
    3.   solid
    4.   gaseous
23. Which of the following endocrine gland does not occur as a pair in the human body?
    1.   ovary
    2.   testis
    3.   adrenal
    4.   pituitary
24. From where the process of digestion of food starts in human being?
    1.   Big intestine
    2.   Stomach
    3.   Mouth
    4.   Small intestine
25. Diameter of hydrogen atom is …………. nm.
    1.   0.01
    2.   1.0
    3.   0.1
    4.   10
26. Which of the following always form virtual image?
    1.   concave mirror and convex lens
    2.   convex mirror and convex lens
    3.   concave mirror and concave lens
    4.   convex mirror and concave lens
27. Whose magnetic filed is like a magnetic filed of a bar magnet?
    1.   Current carrying solenoid
    2.   Current carrying wire
    3.   Current carrying ring
    4.   All
28. An alga which reproduces by the asexual reproduction method called fragmentation is ..............
    1.   Spirogyra
    2.   Salmonella
    3.   Plasmodium
    4.   Ruinous
29. Which of the following substance is hygroscopic?
    1.   Anhydrous calcium chloride
    2.   All
    3.   Crinoline
    4.   Feldspar
30. In human being sex is determined by ................
    1.   Cell
    2.   All
    3.   Tissues
    4.   Genes
31. The spinal cord originates from..................
    1.   cerebrum
    2.   cerebellum
    3.   pons
    4.   medulla oblongata
32. Thermal conductivity of standard SWNT along Its length is ………… watt/m.k.
    1.   35
    2.   35000
    3.   350
    4.   3500
33. The Continuity of features from one generation to another is for?
    1.   Body System
    2.   Revolution
    3.   Generation
    4.   Heredity
34. Which functional group is possessed by carboxylic acid?
    1.   - CHO
    2.   - COH
    3.   - COOH
    4.   - OH
35. When Mendel crossed Tall plant with Dwarf plant what was the ratio of dwarf plants in F₂ generation ?
    1.   30%
    2.   35%
    3.   20%
    4.   25%
36. Which of the following are primary pigments?
    1.   All
    2.   yellow, green and magenta
    3.   red, green and yellow
    4.   magenta, yellow and cyan
37. C₂ H₆ is the molecular formula of which compound?
    1.   None
    2.   Propane
    3.   Ethane
    4.   Methane
38. The kidneys in human being are part of the system for?
    1.   Nutrition
    2.   Respiration
    3.   Transportation
    4.   Excretion
39. Which coloured light has minimum velocity in the glass prism?
    1.   Red
    2.   cyan
    3.   violet
    4.   yellow
40. Cerebellum medulla oblongata and pons are the parts of ..........
    1.   mid- brain
    2.   Right-brain
    3.   Left-brain
    4.   hind-brain
41. How many National Parks are there in Gujarat ?
    1.   4
    2.   8
    3.   6
    4.   3
42. Which of the following is an example of non-biodegradable waste?
    1.   Food
    2.   Fruits
    3.   Vegetables
    4.   Polythene
43. In asexual reproduction two offspring's having the same genetic material and the same body features are called.........
    1.   All
    2.   clones
    3.   twins
    4.   callus
44. The most important compound which accounts for almost 80% of the total depletion of ozone layer is ................
    1.   carbon ion
    2.   magnesium ion
    3.   iron ion
    4.   chloride ion
45. In Gujarat how much area is covered by forest?
    1.   9.66 %
    2.   6.69 %
    3.   6.99 %
    4.   9.69 %
46. During which process blood is filtered out in Bowman's capsule?
    1.   Reassertion
    2.   All
    3.   Ultra filtration
    4.   Secretion
47. Which formula is correct?
    1.   Mole = weight/molecular mass
    2.   Mole = height/molecular mass
    3.   Mole = molecular mass/weight
    4.   Mole = molecular mass/height
48. The cut part of plant stem which is used in the process of grafting is .............
    1.   Participating
    2.   Cutting
    3.   stock
    4.   Making
49. All the four chambers of heart are separated from each other by .............
    1.   Arteries
    2.   Septa
    3.   Veins
    4.   Valves
50. The stimulus in the process of thigmotropism is ...................
    1.   touch
    2.   light
    3.   weight
    4.   Thick