GK QUESTION#3335
Consider the following statements about the familiar Group 6 metals chromium, molybdenum and tungsten.
1. Chromium is a Group 6 element with variable oxidation states and is used in stainless steel.
2. Iron belongs to the same group as chromium.
3. These Group 6 metals form a range of coloured compounds.
Which statements are correct?
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Answer
B. Only 1 and 3
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Explanation
Chromium is a Group 6 transition metal used in stainless steel and has several oxidation states. Iron is in Group 8, so statement 2 is false. The familiar Group 6 metals form a range of coloured compounds, although colour depends on the compound and electron configuration; not every compound is coloured. Statements 1 and 3 are correct.