MCQ
Crystalline metal can be transformed into metallic glass by
- AAlloying
- BPressing into thin plates
- CSlow cooling of molten metal
- ✓Very rapid cooling of a spray of the molten metal
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(i)$ Pyro silicate
$(ii)$ Cyclic silicate
$(iii)$ Double chain silicate
$(iv)$ Single chain silicate
$(v)$ $3D$ silicate
$(vi)$ Sheet silicate
$\mathrm{Cr}_2 \mathrm{O}_7^{2-}+\mathrm{XH}^{+}+\mathrm{Ye}^{-} \rightarrow 2 \mathrm{~A}+\mathrm{ZH}_2 \mathrm{O}$
$\mathrm{X}, \mathrm{Y}, \mathrm{Z}$ and $\mathrm{A}$ are respectively are: