Question

X reacts with oxygen to form a compound 'Y. 'Y' on reaction with water forms a new
substances 'Z' that turns blue litmus red. Identify X, Y and Z respectively.
1.Metalloid, metalloid oxide, neutral solution
2.Metal, metallic oxide, neutral solution
3.Non-metal, non-metallic oxide, acid
4.Metal, metallic oxide, base​

Answer 1

Answer:

metal,metallic oxide,base

Explanation:

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Answer 2

X, Y, and Z are Metal, metallic oxide, and base respectively ​(Option - 4).

• "Z" is a base as it turns the red litmus blue.
• Litmus paper is used as a pH indicator that determines whether the solution is acidic, basic, or neutral.
• A red litmus paper will turn blue on interaction with a base, a blue litmus will turn red on interaction with acid and will remain unchanged on interaction with a neutral solution.
• Any element - metal or non-metal on reaction with oxygen forms its corresponding oxide → metallic and non-metallic oxide respectively.
• Mostly metallic oxides form an alkaline(base) solution when dissolved in water and non-metallic oxides form an acidic solution.
• As Z is a base, therefore, X is metal, and Y is a metallic oxide.
• Metal + Oxygen → Metal oxide
• For example: 4Na + O₂→ 2Na₂O