10th GSEB Science And Technology MCQ 2

10th GSEB Science and Technology MCQ Test 2

Quiz

1 / 50

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