Question
Download Solution PDFA 25 ml sample was diluted to 250 ml with odourless distilled water so that the odour of the sample no longer perceivable. What was the Threshold odour number ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Odour and taste are expressed by threshold odour number (T.O.N.) as it represents the dilution ratio at which odour can not be detected.
where A = Volume of water sample undiluted
B = volume of distilled water required to be added to remove the odour.
Calculation:
Given,
A + B = 250 ml
A = 25 ml
T.O.N. = 10
Mistake Points
- Generally in these question volume of water to be added (B), is given.
- But In the question, it is given " sample was diluted to ", which means that the final volume of the sample after dilution(A+B) is given
Last updated on Jan 3, 2025
-> MPPSC AE 2025 Notification is released on 31st December, 2024. Candidates can apply online starting from 14th March to 13th April, 2025 (12:00 pm).
-> A total of 23 vacancies of Assistant Engineers (AE) in the Civil, Mechanical and Electrical disciplines have been announced.
-> Candidates will be shortlisted on the basis of the MPPSC State Engineering Services Exam.
-> Candidates who will be selected will finally get a salary range between Rs. 15,600 to RS. 39,100/-.
-> With Degree in Engineering as the basic educational qualification, it is a great opportunity for various job seekers.