Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Which of the following is true for minerals?

• A. A mineral has fixed physical structure and a certain fixed chemical composition
• B. A mineral has fixed physical structure but chemical properties are not fixed.
• C. A mineral has fixed chemical composition but physical structure are not fixed.
  
• D. None of these

Answer 1

The correct option is A A mineral has fixed physical structure and a certain fixed chemical composition

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> A mineral can be defined as a homogenous, naturally occurring substance with a definable internal structure and chemical property. Minerals are found in varied forms in nature, ranging from the hardest diamond to the softest talc.