Question
Which of the following is an example of an olfactory
indicator?Solution
Olfactory indicators are substances that change their smell in the presence of acids or bases. Onion is an olfactory indicator because its characteristic smell diminishes in the presence of a base but remains unchanged in an acidic medium. This property helps distinguish between acidic and basic solutions through the sense of smell. Other examples of olfactory indicators include vanilla extract and clove oil, which behave similarly. In contrast, turmeric, China rose, and methyl orange are visual pH indicators that change color rather than smell in different pH environments.
Which of the following sampling techniques is most suitable when the population is divided into distinct subgroups, and it is important to ensure each s...
Which sampling technique involves dividing the population into mutually exclusive subgroups and then randomly selecting samples from each subgroup?
In the context of fraud detection in financial transactions , which of the following techniques is most effective for identifying unusual patterns or an...
A data analyst has generated insights on customer retention trends. To effectively communicate these insights, which of the following techniques would b...
Which of the following transformations is most appropriate to bring all feature values into the range [0,1] for a machine learning model?
...Which of the following best describes the difference between simple moving averages and exponential smoothing in forecasting?
Which of the following keys ensures that no duplicate values are allowed and also uniquely identifies a record in a relational database table?
A company wants to analyze customer sentiment about their new product by extracting data from Twitter. Which data collection method is most appropriate ...
Which of the following scenarios would benefit most from using time series analysis with seasonal decomposition?
A company’s network experiences intermittent connectivity issues. Upon analysis, the network technician observes frequent CRC (Cyclic Redundancy Check...
Relevant for Exams:
