All we know that – metal oxides which react with both acids as well as bases to produce salt and water are called Oxides of Amphoteric or Amphoteric oxides. You can write as an example: 1)Al₂O₃ + 2NaOH → 2NaAlO₂ ...

Class X Science MCQ Extra Questions Answers Class 10 Science Terminal Exams MCQ Solutions Class 10th Science Session 2022-23 10th Science Terminal Exam Based MCQ Extra Questions

Solution of Iodine is often used for testing the presence of starch in the food particles, as we know that. But, when iodine is added to starch, it turns blue-black. rice water it turns blue-black because it contains starch, hence ...