Identify the correct statement about properties of interstitial compounds.
- AMelting point of these compounds is lower than parent metal.
- BDensities of these compounds are higher than parent metal.
- CChemical properties of interstitial compounds are different than parent metal.
- DMetallic carbide is chemically inert.
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The addition of dilute $NaOH$ to $Cr^{3+}$ salt solution will give:
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$(a)$ The only $Mn$ halide compound that shows an oxidation state of $+7$ is ........
$(b)$ The $E^{\ominus}_{M^{II}/M}$ value is maximum negative for ........ in the $3d$ series.
$(c)$ Between $Cr^{2+}$ and $Fe^{2+}$,the stronger reducing agent is ........
$(a)$ The only $Mn$ halide compound that shows an oxidation state of $+7$ is ........
$(b)$ The $E^{\ominus}_{M^{II}/M}$ value is maximum negative for ........ in the $3d$ series.
$(c)$ Between $Cr^{2+}$ and $Fe^{2+}$,the stronger reducing agent is ........
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Then $X^-$ can be:
$2CuX_2 \xrightarrow{\text{Room temperature}} 2CuX + X_2 \uparrow$
Then $X^-$ can be:
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