The pH values of two solutions ‘I’ and ‘II’ are 8 and 10, respectively. Which of the following statements is true about these solutions?

This question was previously asked in
AAI Junior Assistant (Fire Service) Official Paper (Held On: 15 Nov 2022 Shift 1)
View all AAI Junior Assistant Papers >
  1. ‘II’ is more acidic than ‘I’.  
  2. ‘T° is basic and ‘II’ is acidic. 
  3. ‘II’ is more basic than ‘I’. 
  4. ‘I’ is more basic than ‘II’. 

Answer (Detailed Solution Below)

Option 3 : ‘II’ is more basic than ‘I’. 
Free
ST 1: English
2.4 K Users
20 Questions 20 Marks 25 Mins

Detailed Solution

Download Solution PDF

The correct answer is 'II' is more basic than 'I'..

Key Points

  • The pH scale ranges from 0 to 14, with 7 being neutral.
  • A pH value below 7 indicates an acidic solution, while a pH value above 7 indicates a basic solution.
  • Solution 'I' has a pH of 8, which means it is basic.
  • Solution 'II' has a pH of 10, which means it is more basic than solution 'I'.
  • Therefore, the correct statement is that 'II' is more basic than 'I'.

Additional Information

  • Acidity and Basicity
    • Acidity refers to the concentration of hydrogen ions (H+) in a solution.
    • Basicity refers to the concentration of hydroxide ions (OH-) in a solution.
  • Neutralization Reactions
    • These are chemical reactions in which an acid and a base react to form water and a salt.
    • Neutralization reactions typically result in a solution with a pH closer to 7.
  • Indicators
    • Indicators are substances that change color in response to changes in pH.
    • Common indicators include litmus paper, phenolphthalein, and bromothymol blue.
Latest AAI Junior Assistant Updates

Last updated on Apr 24, 2025

-> The AAI Junior Assistant Response Sheet 2025 has been out on the official portal for the written examination.

-> AAI has released 168 vacancies for Western Region. Candidates had applied online from 25th February to 24th March 2025.

-> A total number of 152 Vacancies have been announced for the post of Junior Assistant (Fire Service) for Northern Region.

-> Eligible candidates can apply from 4th February 2025 to 5th March 2025. 

-> Candidates who have completed 10th with Diploma or 12th Standard are eligible for this post.

-> The selection process includes a Computer Based Test, Document Verification, Medical Examination (Physical Measurement Test), Driving Test and a Physical Endurance Test.

-> Prepare for the exam with AAI Junior Assistant Previous year papers.

Get Free Access Now
Hot Links: teen patti master downloadable content teen patti classic teen patti download apk teen patti lucky teen patti joy mod apk