MCQ
Gallium is in __________ state at room temperature.
- APlasma.
- BLiquid.
- CSolid.
- DGaseous.
Explanation:
Gallium is in liquid state at room temperature. The melting point of gallium is 303K.
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$(I)\,\, AgNO_3$
$(II)\,\, CaCO_3$
$(III) \,\,Pb(NO_3)_2$
$(IV) \,\,Na_2CO_3$
$1.$ The compounds $\mathrm{P}$ and $\mathrm{Q}$ respectively are
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$2.$ The compound $R$ is
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$3.$ The compound $\mathrm{S}$ is
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Give the answer question $1,2$ and $3.$