Question Detail

CHM 101 General Chemistry Objective Question
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Question

Which of the following is an example of a combination reaction?
Options
A H2CO3(aq) → H2O(l) + CO2(g)
B 2Mg + O2 → 2MgO
Correct Answer
C Fe + CuSO4(aq) → FeSO4(aq) + Cu(s)
D AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)
Correct Answer

Option B is the correct answer.

Detailed Explanation

2Mg + O2 → 2MgO is a combination reaction where two elements combine to form a single product. The other options are decomposition, displacement, and double displacement reactions respectively.

Hint

Look for the reaction where multiple reactants form one product.

Question Info

Course: CHM 101
Topic: General Chemistry
Type: Objective
Difficulty: Not specified
Question 444 of 1872
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