Find the number of compounds that form basic flux from the ones given below:
$S i O_{2}, M g O, C a O, F e O, B_{2} O_{3}, C a C O_{3}$

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Solution

$B_{2} O_{3} + 3 H_{2} O \to 2 H_{3} B O_{3} o r t h o b o r i c a c i d$
$∴ B_{2} O_{3}$ forms an acidic flux.

$C a O + H_{2} O \to C a (O H)_{2} C a l c i u m h y d r o x i d e$
$∴ C a O$ forms a basic flux.

$C a C O_{3} △ \to C a O + C O_{2}$
$C a O + H_{2} O \to C a (O H)_{2} C a l c i u m h y d r o x i d e$
$∴ C a C O_{3}$ forms a basic flux.

$M g O + H_{2} O \to M g (O H)_{2} M a g n e s i u m h y d r o x i d e$
$∴ M g O$ forms a basic flux.

$S i O_{2} (a c i d i c f l u x) + F e O (b a s i c f l u x) \to F e S i O_{3} (s l a g)$
$∴$ $S i O_{2}$ forms an acidic flux and $F e O$ forms a basic flux.

Thus $M g O, C a O, F e O$ and $C a C O_{3}$ form basic fluxes.

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Find the number of compounds that form basic flux from the ones given below: SiO2, MgO, CaO, FeO, B2O3, CaCO3

Find the number of compounds that form basic flux from the ones given below:
$S i O_{2}, M g O, C a O, F e O, B_{2} O_{3}, C a C O_{3}$