SELECT * FROM (`youtube_videos`) WHERE `display_status` = 1 ORDER BY `video_id` desc LIMIT 1SELECT * FROM (`youtube_videos`) WHERE `display_status` = 1 ORDER BY `video_id` desc
  1. Home
  2. 9th Standard
  3. Science
  4. 9th Science - Acids, Bases and Salts Book Back Questions

Updated 9th Standard Science Study Materials 2022-2023 Exams

9th Science - Acids, Bases and Salts Book Back Questions Question Bank Software Sep-09 , 2019

Acids, Bases and Salts

9th Science - Acids, Bases and Salts Book Back Questions

Acids, Bases and Salts Book Back Questions

9th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Science

Time : 00:45:00 Hrs
Total Marks : 30
    6 x 1 = 6

  1. Zn + 2HCl \(\longrightarrow \) ZnCl2 + ____\(​​​​\uparrow \)(H2' O2' CO2)

    (a)

    H2

    (b)

    O2

    (c)

    CO2

    (d)

    CO2

  2. Apple contains malic acid. Orange contains_______

    (a)

    citric acid

    (b)

    ascorbic acid

    (c)

    Tartaric acid

    (d)

    Oxalic acid

  3. pH value of human blood is_________

    (a)

    7.0

    (b)

    7.4

    (c)

    7.6

    (d)

    7.6

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

    (a)

    acidic

    (b)

    basic

    (c)

    neutral

    (d)

    neutral

  5. You are given pure water to test the pH value using pH paper. It shows colour

    (a)

    White

    (b)

    black

    (c)

    green

    (d)

    black

  6. The hydrated salt of copper sulphate has______colour

    (a)

    Red

    (b)

    White

    (c)

    Blue

    (d)

    Pink

    7. 3 x 3 = 9

  7. Give the significance of pH of soil in agriculture.

  8. What are the various uses of Aquaregia.

  9. What are the uses of Plaster of Paris?

    10. 3 x 5 = 15

  10. Why does distilled water not conduct electricity whereas rain water does?

  11. Plaster of Paris should be stored in a moisture proof container. why?

  12. Sulphuric acid is called King of Chemicals. Why is it called so?

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

Reviews & Comments about 9th Science - Acids, Bases and Salts Book Back Questions

Write your Comment

9th Science - Acids, Bases and Salts Book Back Questions | 9th Standard STATEBOARD



A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/newqb365/public_html/materials/application/models/blog_model.php:1914)

Filename: libraries/Session.php

Line Number: 688

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/newqb365/public_html/materials/application/models/blog_model.php:1914)

Filename: libraries/Session.php

Line Number: 688