Question:
In ruby and emerald, the metal ion(s) present is/are:
In ruby and emerald, the metal ion(s) present is/are:
Show Hint
The colour of many gemstones is due to transition metal ions. Ruby and emerald both get their characteristic colours mainly due to \(\mathrm{Cr}^{3+}\).
Updated On: Jun 24, 2026
- \(\mathrm{Cr}^{6+},\mathrm{Mn}^{3+}\)
- \(\mathrm{Cr}^{3+}\)
- \(\mathrm{Mn}^{3+},\mathrm{Co}^{3+}\)
- \(\mathrm{Co}^{3+}\)
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Identify the metal ion in ruby.
Ruby is a red gemstone form of corundum.
Its red colour is due to the presence of \[ \mathrm{Cr}^{3+} \] ions replacing some \(\mathrm{Al}^{3+}\) ions in the crystal lattice.
Step 2: Identify the metal ion in emerald.
Emerald is a green gemstone variety of beryl.
Its green colour is mainly due to the presence of \[ \mathrm{Cr}^{3+} \] ions.
Step 3: Compare with the options.
Both ruby and emerald contain \[ \mathrm{Cr}^{3+} \] as the important colouring metal ion.
Therefore, option (2) is correct.
Step 4: Final conclusion.
Hence, the metal ion present is \[ \boxed{\mathrm{Cr}^{3+}} \]
Ruby is a red gemstone form of corundum.
Its red colour is due to the presence of \[ \mathrm{Cr}^{3+} \] ions replacing some \(\mathrm{Al}^{3+}\) ions in the crystal lattice.
Step 2: Identify the metal ion in emerald.
Emerald is a green gemstone variety of beryl.
Its green colour is mainly due to the presence of \[ \mathrm{Cr}^{3+} \] ions.
Step 3: Compare with the options.
Both ruby and emerald contain \[ \mathrm{Cr}^{3+} \] as the important colouring metal ion.
Therefore, option (2) is correct.
Step 4: Final conclusion.
Hence, the metal ion present is \[ \boxed{\mathrm{Cr}^{3+}} \]
Was this answer helpful?
0
0
Top AP EAPCET Chemistry Questions
- The four quantum numbers of the valence electron of potassium are :
- The volume of $0.02\, M$ acidified permanganate solution required for complete reaction of $60\, mL$ of $0.01\, MI^{-}$ ion solution to form $I_2$ in $mL$ is
- In which of the following the election gain enthalpy of elements is correctly arranged?
- The radii of $ \text{F,}{{\text{F}}^{-}}\text{O} $ and $ {{\text{O}}^{2-}} $ are in the order
- Which of the following has the highest first ionization potential?
View More Questions
Top AP EAPCET Transition Metals Questions
Top AP EAPCET Questions
- A body is projected from the ground at an angle of $\tan^{-1} \left( \frac{8}{7}\right)$ with the horizontal. The ratio of the maximum height attained by it to its range is
- The four quantum numbers of the valence electron of potassium are :
- A lens forms real and virtual images of an object, when the object is at $u_{1}$ and $u_{2}$ distances respectively. If the size of the virtual image is double that of the real image, then the focal length of the lens is (take, the magnification of the real image as $m$ )
- Two spheres $P$ and $Q$, each of mass $200\, g$ are attached to a string of length one metre as shown in the figure. The string and the spheres are then whirled in a horizontal circle about $O$ at a constant angular speed. The ratio of the tension in the string between $P$ and $Q$ to that of between $P$ and $O$ is $(P$ is at mid-point of the line joining $O$ and $Q$ )
- The volume of $0.02\, M$ acidified permanganate solution required for complete reaction of $60\, mL$ of $0.01\, MI^{-}$ ion solution to form $I_2$ in $mL$ is
View More Questions