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Which of the following statements is/are...

Which of the following statements is/are true?
A. Out of 124 elements, 22 are non-metals, and other are metals.
B. Every ore is a mineral but every mineral is not an ore.

A

Only B is true

B

A and B are both true

C

Only A is true

D

A and B are both false

Text Solution

AI Generated Solution

The correct Answer is:
To determine the truth of the statements provided, we will analyze each statement step by step. ### Step 1: Analyze Statement A **Statement A:** "Out of 124 elements, 22 are non-metals, and the others are metals." 1. **Identify the total number of elements:** The statement mentions there are 124 elements. 2. **Count the non-metals:** We need to verify how many non-metals exist in the periodic table. 3. **Check the periodic table:** The periodic table contains 18 recognized non-metals (such as Hydrogen, Helium, Carbon, Nitrogen, Oxygen, Fluorine, Neon, Phosphorus, Sulfur, Chlorine, Argon, Selenium, Bromine, Krypton, Iodine, Xenon, Radon, and Oganesson). 4. **Conclusion for Statement A:** Since there are only 18 non-metals, the statement claiming there are 22 non-metals is incorrect. ### Step 2: Analyze Statement B **Statement B:** "Every ore is a mineral but every mineral is not an ore." 1. **Define ore and mineral:** An ore is a type of rock that contains sufficient minerals with important elements including metals that can be economically extracted. A mineral is a naturally occurring inorganic substance with a definite chemical composition. 2. **Evaluate the statement:** It is true that all ores are minerals because they are composed of mineral content. However, not all minerals are ores since many minerals do not contain valuable metals or elements. 3. **Conclusion for Statement B:** The statement is correct as it accurately describes the relationship between ores and minerals. ### Final Conclusion - **Statement A is false.** - **Statement B is true.** Thus, the correct answer is that only Statement B is true.
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