Biology WAEC

Using iodine solution, Biuret test, Benedict reagents and ethanol, respectively in testing for reducing sugars, which of the following trends of colour changes would be observed?

A. Blue → black → blue → brown → clear
B. Brown → blue → brick red → clear
C. Brown → violet → blue → clear
D. Brown → blue → violet → milky

Correct Answer: Option C

B. Brown → blue → brick red → clear

Sunday

Share
Published by
Sunday
Tags: Biology

Recent Posts

List of Universities Offering Veterinary Medicine in Nigeria

Veterinary medicine is the branch of medicine that deals with the prevention, diagnosis, and treatment…

3 months ago

List of Universities Offering Anthropology in Nigeria

Anthropology is the scientific study of human beings and their cultures. It encompasses a wide…

3 months ago

List of Universities Offering Sociology in Nigeria

Sociology is the scientific study of human society, culture, and behavior. It examines the social…

3 months ago

List of Universities Offering Social Work in Nigeria

Social Work is a profession dedicated to helping individuals, families, and communities to cope with…

3 months ago

List of Universities Offering Religious Studies in Nigeria

Religious studies is an academic discipline that explores the beliefs, practices, and history of various…

3 months ago

List of Universities Offering Public Administration in Nigeria

Public administration is the field of study and practice that focuses on the organization and…

3 months ago