10th GSEB Science And Technology MCQ 1

SSC Science and Technology Quiz 1

Quiz

 

1. 1 meter = ............ nanometer.
   1.   10¹⁰
   2.   10^-9
   3.   10⁹
   4.   10^-10
2. Diameter of hydrogen atom is ............ n.m .
   1.   1.01
   2.   0.1
   3.   1.0
   4.   0.01
3. The focal length of plane mirror is ..............
   1.   Infinity
   2.   Uncertain
   3.   Equal to object distance
   4.   None
4. Which of the following material has maximum optical density?
   1.   Oil
   2.   Diamond
   3.   Glass
   4.   Water
5. In human eye, the image of an object is formed at ............
   1.   Retina
   2.   Pupil
   3.   Cornea
   4.   Iris
6. Due to which phenomenon of light does a tyndall effect result?
   1.   Refraction
   2.   Dispersion
   3.   Scattering
   4.   Reflection
7. ........... lens is used to correct the defect of vision termed as presbyopia.
   1.   Convex
   2.   Biological
   3.   Bifocal
   4.   Contact
8. 1μA = ..........mA
   1.   10³
   2.   10⁸
   3.   10^-3
   4.   10^-8
9. The unit of electric potential difference is .............
   1.   J
   2.   J/C
   3.   J.C
   4.   C/J
10. The distilled water acts as .......... for the electricity.
    1.   Conductor
    2.   Insulator
    3.   Semi-conductor
    4.   Semi-insulator
11. The SI unit of electric charge is .............
    1.   ampere
    2.   volt
    3.   watt
    4.   coulomb
12. Who had first observed the magnetic effect of an electric current?
    1.   Faraday
    2.   Oersted
    3.   Volta
    4.   Ampere
13. Which coloured wire is used for earthing?
    1.   Red
    2.   Black
    3.   Green
    4.   Yellow
14. Which instrument is used to know the presence of an electric current?
    1.   Galvanometer
    2.   Micrometer
    3.   Voltmeter
    4.   Nenometer
15. What is periodic time of Halley's comet?
    1.   67 Years
    2.   76 Years
    3.   69 Years
    4.   79 Years
16. ................. is the most brilliant planet of the solar system.
    1.   Earth
    2.   Venus
    3.   Jupiter
    4.   None
17. Poles of Mars are covered by ...............
    1.   dry-ice
    2.   Mix-ice
    3.   Nitrogen
    4.   Hidrogen
18. Non metal-oxide + Base --> ..............?
    1.   Base + Water
    2.   Salt + Water
    3.   Salt + Base
    4.   None
19. Distance of geostationary satellite from the earth's surface is .......... km.
    1.   35,786
    2.   53,786
    3.   36,785
    4.   38,765
20. 250 ml aqueous solution is prepared by dissolving 4 moles of HCI in water, what will be the molarity of the solution ?
    1.   16M
    2.   11M
    3.   14M
    4.   12M
21. Which of the following is strong acid ?
    1.   CH₃ COOH
    2.   NH₄ CI
    3.   H₂ SO₄
    4.   NaCI
22. Which of the following solution is having pH = 2 ?
    1.   0.01M HCI
    2.   0.001M HCL
    3.   0.01M NaCI
    4.   0.001M NaCI
23. By which reaction metal is obtained from metal oxide?
    1.   Reduction
    2.   Diduction
    3.   Multiplication
    4.   Consumption
24. What is the chemical formula of Cryolite?
    1.   Na₃ AIF ₆
    2.   NaAIF₆
    3.   NaAI₃ F₆
    4.   NaAIF₃
25. Which of the following is an alloy?
    1.   All
    2.   18 carat gold
    3.   22 carat gold
    4.   24 carat gold
26. Which nonmetallic element is in liquid form?
    1.   Bromine
    2.   Carbon
    3.   Nitrogen
    4.   HCL
27. Which acid is called king of chemicals?
    1.   HNO₃
    2.   Na₃ AIF ₆
    3.   HCI
    4.   H₂ S0₄
28. Which of the following oxides is of neutral nature?
    1.   CO₂
    2.   SO₂
    3.   H₂O
    4.   N₂O
29. Which of the following is used in production of water gas ?
    1.   Coke
    2.   Coal gas
    3.   Pure Water
    4.   Sodiam
30. What is the molecular formula of ethyne?
    1.   H₂ O
    2.   C₂H₂
    3.   HNO₃
    4.   CH₄