Oxides contain one or two metal elements combined with what?
- Correct Answer: oxygen
- ethanol
- nitrogen
- carbon
Explanation: Earth’s crust contains a lot of oxygen. The oxygen combines with many other elements to create oxide minerals. Oxides contain one or two metal elements combined with oxygen. Oxides are different from silicates because they do not contain silicon. Many important metals are found as oxides. For example, hematite and magnetite are both oxides that contain iron. Hematite (Fe 2 O 3 ) has a ratio of two iron atoms to three oxygen atoms. Magnetite (Fe 3 O 4 ) has a ratio of three iron atoms to four oxygen atoms. Notice that the word “magnetite” contains the word “magnet”. Magnetite is a magnetic mineral.
More Random Questions
Q: Which modern vaccine prevents yellow fever?
Ans: Yellow fever vaccine
Ans: Yellow fever vaccine
Q: Who has been appointed as the head coach of the 'Pak Women's Cricket Team' on 27 June 2024?
Ans: Mohammad Wasim
Ans: Mohammad Wasim
Q: A food web can be broken up into what further subdivision that usually has a few links in it?
Ans: water chain
Ans: water chain
Q: NADA has suspended Indian wrestler Bajrang Punia for how many years?
Ans: 4 years
Ans: 4 years
Q: What was the annual shelter inflation rate in March 2025?
Ans: 4.0%
Ans: 4.0%
Q: Which oxygen delivery device is best for a patient with acute respiratory failure?
Ans: Non-rebreather mask
Ans: Non-rebreather mask
Q: Who chaired a meeting with Speakers and Presiding Officers of Parliaments of Commonwealth countries in the British island of Guernsey on 27 January 2025?
Ans: Lok Sabha Speaker Om Birla
Ans: Lok Sabha Speaker Om Birla
Q: Protists play critically important ecological roles as producers and, on the other end of food webs, as what?
Ans: decomposers
Ans: decomposers
Q: Which system are the brain and spinal cord apart of?
Ans: limbic system
Ans: limbic system
Q: Where has 'Pashmina wool' got the GI tag?
Ans: Ladakh
Ans: Ladakh
Q: Where did Prime Minister Modi pay tribute to the Tomb of Unknown Soldiers on July 9, 2024?
Ans: Russia
Ans: Russia
Q: Which modern vaccine prevents measles?
Ans: MMR
Ans: MMR
Q: Which medal did India's Ekta Bhayan win in the World Para Athletics Championship?
Ans: Gold
Ans: Gold
Q: Who addressed the general session of the United Nations General Assembly 2024 on behalf of India?
Ans: S. Jaishankar
Ans: S. Jaishankar
Q: When is Bihar Diwas celebrated?
Ans: March 22
Ans: March 22
