Acids, Bases and Salts English Medium Free Online Test 1 Mark Questions 2020-2021

9th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Science

Time : 00:10:00 Hrs
Total Marks : 10

    Part A

    10 x 1 = 10
  1. Zn + 2HCI \(\longrightarrow \) ZnCl2 + ____\(​​​​\uparrow \)(H2' 02' CO2)

    (a)

    H2

    (b)

    02

    (c)

    CO2

    (d)

    CO2

  2. Acids in plants and animals are organic acids. Whereas acids in rocks and minerals are_________

    (a)

    Inorganic acids

    (b)

    Weak acids

    (c)

    citric acid

    (d)

    ascorbic acid

  3. Since metal carbonate and metal bicarbonate are basic they react with acids to give salt and water with the liberation of__________

    (a)

    NO2

    (b)

    SO2

    (c)

    CO2

    (d)

    SO2

  4. The nature of the tooth paste commonly used is in nature

    (a)

    acidic

    (b)

    basic

    (c)

    neutral

    (d)

    neutral

  5. The hydrated salt of copper sulphate has______colour

    (a)

    Red

    (b)

    White

    (c)

    Blue

    (d)

    White

  6. Acid secreted in our stomach is______ 

    (a)

    hydrochloric acid

    (b)

    sulphuric acid

    (c)

    nitric acid

    (d)

    carbonic acid

  7. _____&_______metals do not react with HCI or HNO3

    (a)

    Gold & Magnesium

    (b)

    Silver & Magnesium

    (c)

    Gold & Silver

    (d)

    Zinc & Silver

  8. Bases ionise in water to form______ions

    (a)

    H+

    (b)

    H3O+

    (c)

    OH-

    (d)

    O2-

  9. NaOH & KOH are____

    (a)

    strong bases

    (b)

    metal Oxides

    (c)

    weak bases

    (d)

    diacidic bases

  10. Which of the following solutions do not conduct electricity?

    (a)

    alcohol

    (b)

    glucose

    (c)

    sulphuric acid

    (d)

    both a & b

*****************************************

Reviews & Comments about 9th Standard Science Acids, Bases and Salts English Medium Free Online Test 1 Mark Questions 2020-2021

Write your Comment