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प्रश्न
When copper oxide and dilute hydrochloric acid react, colour changes to ____________.
विकल्प
white
bluish-green
blue-black
black
MCQ
रिक्त स्थान भरें
उत्तर
When copper oxide and dilute hydrochloric acid react, colour changes to bluish-green.
Explanation:
The blue-green colour of the solution is due to the formation of copper (II) chloride.
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