The highly efficient method of obtaining beryllium is
- ADissociation of beryllium carbide
- BElectrolysis of fused beryllium chloride
- CReduction of beryllium oxide with carbon
- DReduction of beryllium halide with magnesium
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$(1)$ Cement is also known as......
$(2)$ Cement was first introduced by......
$(1)$ Cement is also known as......
$(2)$ Cement was first introduced by......
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View SolutionMatch the compounds given in Column-$I$ with their uses mentioned in Column-$II$:
Column-$I$ Column-$II$ $A$. $CaCO_3$ $1$. Dentistry,ornamental work $B$. $Ca(OH)_2$ $2$. Manufacture of sodium carbonate from caustic soda $C$. $CaO$ $3$. Manufacture of high quality paper $D$. $CaSO_4$ $4$. Used in white washing
| Column-$I$ | Column-$II$ |
|---|---|
| $A$. $CaCO_3$ | $1$. Dentistry,ornamental work |
| $B$. $Ca(OH)_2$ | $2$. Manufacture of sodium carbonate from caustic soda |
| $C$. $CaO$ | $3$. Manufacture of high quality paper |
| $D$. $CaSO_4$ | $4$. Used in white washing |
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View SolutionWhich of the following groups of elements have chemical properties that are most similar?
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