Sodium is produced by the electrolysis of a molten mixture of about $40\%$ $NaCl$ and $60\%$ $CaCl_2$ because
- A$CaCl_2$ helps in the conduction of electricity
- BThis mixture has a lower melting point than pure $NaCl$
- C$Ca^{2+}$ can displace $Na$ from $NaCl$
- D$Ca^{2+}$ can reduce $NaCl$ to $Na$
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Similar Questions
Which of the following is insoluble in water?
Medium
View SolutionMatch List-$I$ with List-$II$:
List-$I$ (Salt) List-$II$ (Flame colour wavelength) $(a)$ $LiCl$ $(i)$ $455.5 \text{ nm}$ $(b)$ $NaCl$ $(ii)$ $670.8 \text{ nm}$ $(c)$ $RbCl$ $(iii)$ $780.0 \text{ nm}$ $(d)$ $CsCl$ $(iv)$ $589.2 \text{ nm}$
Choose the correct answer from the options given below:
| List-$I$ (Salt) | List-$II$ (Flame colour wavelength) |
| $(a)$ $LiCl$ | $(i)$ $455.5 \text{ nm}$ |
| $(b)$ $NaCl$ | $(ii)$ $670.8 \text{ nm}$ |
| $(c)$ $RbCl$ | $(iii)$ $780.0 \text{ nm}$ |
| $(d)$ $CsCl$ | $(iv)$ $589.2 \text{ nm}$ |
Choose the correct answer from the options given below:
Among the carbonates of alkali metals,which one has the highest thermal stability?
Easy
View SolutionWhat are the common physical and chemical features of alkali metals?
Medium
View SolutionCompound $A$ is prepared by the electrolysis of an aqueous solution of $B$ using a Castner-Kellner cell with mercury as the cathode and carbon as the anode. $A$ and $B$ respectively are:
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