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A metal reacts with oxygen to form metallic oxide. This oxide is dissolved in water to form X. Which of the following is true about the solution X:
  • a)
    X will turn blue litmus red
  • b)
    X will turn red litmus blue
  • c)
    X will not change the litmus paper
  • d)
    Cannot be determined, the result may be different for different metals
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A metal reacts with oxygen to form metallic oxide. This oxide is diss...
Concept
Metals react with oxygen to form metallic oxides.
These metallic oxides are basic in nature
Metal + Oxygen → Metallic oxide
Example:
When magnesium burns in the air it combines with the oxygen of the air to form magnesium oxide.
2 Mg + O2 → 2 MgO
Magnesium oxide dissolves in water to form a magnesium hydroxide solution.
MgO + H2O → Mg(OH)2
Magnesium hydroxide turns red litmus blue which shows its basic nature.
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A metal reacts with oxygen to form metallic oxide. This oxide is dissolved in water to form X. Which of the following is true about the solution X:a)X will turn blue litmus redb)X will turn red litmus bluec)X will not change the litmus paperd)Cannot be determined, the result may be different for different metalsCorrect answer is option 'B'. Can you explain this answer?
Question Description
A metal reacts with oxygen to form metallic oxide. This oxide is dissolved in water to form X. Which of the following is true about the solution X:a)X will turn blue litmus redb)X will turn red litmus bluec)X will not change the litmus paperd)Cannot be determined, the result may be different for different metalsCorrect answer is option 'B'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about A metal reacts with oxygen to form metallic oxide. This oxide is dissolved in water to form X. Which of the following is true about the solution X:a)X will turn blue litmus redb)X will turn red litmus bluec)X will not change the litmus paperd)Cannot be determined, the result may be different for different metalsCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A metal reacts with oxygen to form metallic oxide. This oxide is dissolved in water to form X. Which of the following is true about the solution X:a)X will turn blue litmus redb)X will turn red litmus bluec)X will not change the litmus paperd)Cannot be determined, the result may be different for different metalsCorrect answer is option 'B'. Can you explain this answer?.
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