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| घटक | प्रतिशत |
| $1$. $CaO$ | $a$. $2-3\%$ |
| $2$. $MgO$ | $b$. $50-60\%$ |
| $3$. $SiO_2$ | $c$. $5-10\%$ |
| $4$. $Al_2O_3$ | $d$. $20-25\%$ |
| स्तंभ-$I$ | स्तंभ-$II$ |
| $a$. $Ra$ | $p$. वायुयान उद्योग |
| $b$. $K$ | $q$. डाउन सेल |
| $c$. $Li$ | $r$. फोटो इलेक्ट्रिक सेल |
| $d$. $Na$ | $s$. रेडियोएक्टिव |
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