Question
What is the chemical formula for common rust? 1.
Fe3O4 2. FeO 3. Fe2O3 . xH2O 4. FeCL3Solution
Explanation: Rusting is an oxidation reaction that occurs when iron reacts with oxygen in the presence of moisture.
More Chemistry GS Questions
25, 200, 40, ?, 64, 512
14, 28, 54, 98, 154, 224
18, 25, 33, 42, 52, 63, ?
1 2 9 ? 65 126
...98 148 185 ? 228 238
20 9 10 ? 29 71.5
...Each question below is based on a number series. Identify the pattern and answer accordingly.
A sequence {Tₙ} is defined as:
T₁ = a, T...
22 15 10 20 33 93.5
...The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the questions...
5 14 56 220 1125 6786
...
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