Test on Properties and Uses of Key Elements
Properties and Uses of Key Elements: A Student's Guide
Test: Chemical Elements
20 questions
Question 1: Zinc is not found in foods such as sesame seeds, wheat, and nuts.
A. Ano
B. Ne
Explanation: The study materials indicate that foods that contain zinc include sesame seeds, wheat, and nuts.
Question 2: Potassium is primarily used in the production of plastics and paints, rather than in fertilizers or fireworks.
A. Ano
B. Ne
Explanation: Potassium is used in fireworks, pyrotechnics, fertilizers, and nuclear reactors. Zinc is the element used in the production of plastics and paints.
Question 3: Titanium is a very light metal.
A. Ano
B. Ne
Explanation: The study materials describe Titanium as a very strong and light metal.
Question 4: Iron is utilized in the production of steel and for creating magnets.
A. Ano
B. Ne
Explanation: The study materials explicitly state that iron is used in steel and in magnets.
Question 5: The use of selenium in glass and power converters is primarily due to its ability to convert light into energy.
A. Ano
B. Ne
Explanation: The study materials state that selenium has photovoltaic properties, which means it can convert light into energy, and that it is used in solar cells, in glass, in photocopiers and in power converters. However, the materials do not explicitly link its ability to convert light into energy specifically to its use in glass and power converters, only generally to its photovoltaic properties.