The Question is from neet-chemistry general-principles-and-processes-of-isolation-of-e introduction, and it was created by the author CHANDRAKANTH

Question

Which one is malachite from the following?

CHANDRAKANTH · Accepted Answer

## CORE INFORMATION
✓ **Answer**: [D]
## CONCEPT FRAMEWORK
	**Primary Concept**: Mineral Identification
	**Related Topics**: Chemical Formulas, Copper minerals
	**Prerequisites**: Knowledge of common mineral formulas
## SOLUTION PATHWAY
**Given Information**:
	* Multiple chemical formulas are provided.
	* The question asks for the formula of malachite.
**Method & Steps**:
	1.	Recall the chemical formula of malachite.
		Reasoning: Malachite is a well-known copper carbonate hydroxide mineral.
		Formula/Rule: The chemical formula of malachite is $CuCO_3.Cu(OH)_2$.
	2.	Identify the correct option from the list.
		Working: Option D matches the chemical formula of malachite.
	3.	Select the correct option.
		Result: Option D is the correct answer.
		Verification: The answer aligns with known mineralogical data.
 ## OPTION ANALYSIS
[A] :x: $CuFeS_2$ is the formula for chalcopyrite, a copper iron sulfide.
[B] :x: $Cu(OH)_2$ is the formula for copper(II) hydroxide.
[C] :x: $Fe_3O_4$ is the formula for magnetite, an iron oxide.
[D] ✓: $CuCO_3.Cu(OH)_2$ is the correct formula for malachite, a copper carbonate hydroxide.
 ## LEARNING AIDS
	**Common Mistakes**:
		1.[Error 1]: Confusing malachite with other copper minerals.
		  [How to avoid]: Memorize the chemical formula of common minerals.
		2.[Error 2]: Selecting a compound with copper but not the correct formula.
		  [How to avoid]: Pay close attention to the full chemical formula.
	**Quick Tips**:
		1.[Helpful shortcut]: Knowing that malachite is a copper carbonate hydroxide can help narrow the options.
		2.[Memory aid]: Associate 'malachite' with a 'carbonate' and 'hydroxide' of copper.

CHANDRAKANTH · Answer

$CuFe{S_2}$

CHANDRAKANTH · Answer

$Cu{(OH)_2}$

CHANDRAKANTH · Answer

$F{e_3}{O_4}$

CHANDRAKANTH · Answer

The correct Option is "$CuC{O_3}.\,Cu{(OH)_2}$"

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