$Kieselghur$ is an amorphous form of silica which is used in filtration plants. Which of the following is true about it?
- AIt is a crystalline form of $SiO_2$.
- BIt is an amorphous form of $SiO_2$.
- CIt is a form of $CO_2$.
- DIt is a synthetic polymer.
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Similar Questions
Which one of the following compounds of Group-$14$ elements is not known?
$SiCl_4$ on hydrolysis forms '$X$' and $HCl$. Compound '$X$' loses water at $1000^{\circ} C$ and gives '$Y$'. Compounds '$X$' and '$Y$' respectively are:
Find $A$,$B$ and $C$ in the following reactions:
$NH_3 + A + CO_2 \rightarrow (NH_4)_2CO_3$
$(NH_4)_2CO_3 + H_2O + B \rightarrow 2NH_4HCO_3$
$NH_4HCO_3 + NaCl \rightarrow NH_4Cl + C$
$NH_3 + A + CO_2 \rightarrow (NH_4)_2CO_3$
$(NH_4)_2CO_3 + H_2O + B \rightarrow 2NH_4HCO_3$
$NH_4HCO_3 + NaCl \rightarrow NH_4Cl + C$
Identify the incorrect statement about silica $(SiO_2)$.
Which of the following elements has the lowest melting point?
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