MCQ
Two nucleotides are joined together by a linkage known as :
- ✓Phosphodiester linkage
- BGlycosidic linkage
- CDisulphide linkage
- DPeptide linkage

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| List $I$ (Substances) | List $II$ (Processes |
| $(A)$ Sulphuric acid | $(i)$ Haber's process |
| $(B)$ Steel | $(ii)$ Bessemer's process |
| $(C)$ Sodium hydroxide | $(iii)$ Leblanc process |
| $(D)$ Ammonia | $(iv)$ Contact process |
$\mathrm{Eu}, \mathrm{Cm}, \mathrm{Er}, \mathrm{Tb}, \mathrm{Yb}$ and $\mathrm{Lu}$