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Which of the compounds will leave a metal residue when heated?

Chemistry
WAEC 2001

Which of the compounds will leave a metal residue when heated?

  • A. Cu(NO 3 )2
  • B. AgNO3
  • C. K2CO3
  • D. CaCO3
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Correct Answer: Option B
Explanation

AgNO3 is also known as lunar caustic because it: Creates a burning sensation and Leaves a black stain similar to the moon. Silver nitrate (AgNO3) will leave a metal residue when heated strongly.

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