1. Which of the following is substance compound?
A. Alloy
B. Gold
C. Iron
D. Silver
2. Which of the following is an element ?
A. Oxygen
B. Gun Powder
C. Salt
D. Water
A. Alloy
B. Gold
C. Iron
D. Silver
2. Which of the following is an element ?
A. Oxygen
B. Gun Powder
C. Salt
D. Water
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Answer:
1.A.Alloy
2.A.Oxygen
Explanation:
Alloy is not in the elements
it's an combination of metals or metals with one or more elements.
Oxygen is an Element
Oxygen is an chemical element with the symbol O.