Which one of the following elements is most abundant in the earth's crust?
- AAluminium
- BSilicon
- CCarbon
- DOxygen
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Match the following minerals in List-$I$ with their chemical formulas in List-$II$.
List-$I$ List-$II$ $(A)$ Feldspar $(I)$ $[Ag_3SbS_3]$ $(B)$ Asbestos $(II)$ $Al_2O_3 \cdot H_2O$ $(C)$ Pyrargyrite $(III)$ $MgSO_4 \cdot H_2O$ $(D)$ Diaspore $(IV)$ $KAlSi_3O_8$ $(V)$ $CaMg_3(SiO_3)_4$
| List-$I$ | List-$II$ |
|---|---|
| $(A)$ Feldspar | $(I)$ $[Ag_3SbS_3]$ |
| $(B)$ Asbestos | $(II)$ $Al_2O_3 \cdot H_2O$ |
| $(C)$ Pyrargyrite | $(III)$ $MgSO_4 \cdot H_2O$ |
| $(D)$ Diaspore | $(IV)$ $KAlSi_3O_8$ |
| $(V)$ $CaMg_3(SiO_3)_4$ |
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