Fill in the blanks:
$(1)$ Cement is also known as......
$(2)$ Cement was first introduced by......
$(1)$ Cement is also known as......
$(2)$ Cement was first introduced by......
(N/A) $(1)$ Portland cement
$(2)$ Joseph Aspdin
$(2)$ Joseph Aspdin
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The suspension of slaked lime in water is known as
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Column $(A)$ Column $(B)$ $(a)$ $BeO$ $(p)$ Amphoteric $(b)$ $MgCO_3 \cdot CaCO_3$ $(q)$ Dolomite $(c)$ $BeCl_2$ $(r)$ Covalent $(d)$ $Al(OH)_3$ $(s)$ Basic
| Column $(A)$ | Column $(B)$ |
| $(a)$ $BeO$ | $(p)$ Amphoteric |
| $(b)$ $MgCO_3 \cdot CaCO_3$ | $(q)$ Dolomite |
| $(c)$ $BeCl_2$ | $(r)$ Covalent |
| $(d)$ $Al(OH)_3$ | $(s)$ Basic |
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