Which of the following are ionic carbides?
- A$CaC_2$
- B$Al_4C_3$
- C$Be_2C$
- DAll of the above
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Compare the alkali metals and alkaline earth metals with respect to $(i)$ ionization enthalpy,$(ii)$ basicity of oxides,and $(iii)$ solubility of hydroxides.
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View SolutionMatch the constituents of cements with their percentage proportion :
Constituents Percentage $1$. $CaO$ $a$. $2-3\%$ $2$. $MgO$ $b$. $50-60\%$ $3$. $SiO_2$ $c$. $5-10\%$ $4$. $Al_2O_3$ $d$. $20-25\%$
| Constituents | Percentage |
| $1$. $CaO$ | $a$. $2-3\%$ |
| $2$. $MgO$ | $b$. $50-60\%$ |
| $3$. $SiO_2$ | $c$. $5-10\%$ |
| $4$. $Al_2O_3$ | $d$. $20-25\%$ |
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View SolutionSelect the incorrect order.
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View SolutionWhat is the chemical formula for green vitriol?
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View SolutionWhich of the following compounds gives oxygen on fast heating?
$I$. $AgNO_3$
$II$. $CaCO_3$
$III$. $Pb(NO_3)_2$
$IV$. $Na_2CO_3$
$I$. $AgNO_3$
$II$. $CaCO_3$
$III$. $Pb(NO_3)_2$
$IV$. $Na_2CO_3$
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