MCQ
In a nucleotide the phosphate linkage is generally attached to -
- A$C-1$ of the sugar
- B$C-2$ of the sugar
- ✓$C-5$ of the sugar
- Dnitrogen atom of the base
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$Zn + HN{O_3}(Dilute)\, \to \,Zn{(N{O_3})_2} + P\, \uparrow $
Reason: Due to formation of a complex
Assertion $A$ : $\left[ CoCl \left( NH _3\right)_5\right]^{2+}$ absorbs at lower wavelength of light with respect to $\left[ Co \left( NH _3\right)_5\left( H _2 O \right)\right]^{3+}$
Reason $R$ : It is because the wavelength of the light absorbed depends on the oxidation state of the metal ion.
In the light of the above statements, choose the correct answer from the options given below :