In a Ruby laser, the colour of laser light is due to ______ atom.
- Achromium
- Boxygen
- Caluminium
- Dxenon
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The set of quantum numbers for the $19^{th}$ electron in chromium $(Cr)$ is:
In a $\triangle ABC$,the expression $\frac{(a+b+c)(b+c-a)(c+a-b)(a+b-c)}{4b^2c^2}$ is equal to:
$EMF$ of the following concentration cell will be $............$ $V$
$Cl_2(1 \ atm) | Cl^{-}(1 \ M) || Cl^{-}(0.1 \ M) | Cl_2(2 \ atm)$
$Cl_2(1 \ atm) | Cl^{-}(1 \ M) || Cl^{-}(0.1 \ M) | Cl_2(2 \ atm)$
Which one of the following is resistant to enzyme action?
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