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General Principles and Processes of Isolation of Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryGeneral Principles and Processes of Isolation of Elements1 Mark
MCQ
Natron is a mineral whose formula represented by:
  • A
    $\mathrm{Na}_2 \mathrm{CO}_3 \cdot \mathrm{H}_2 \mathrm{O}$
  • ✓
    $\mathrm{Na}_2 \mathrm{CO}_3 \cdot 10 \mathrm{H}_2 \mathrm{O}$
  • C
    $\mathrm{Na}_2 \mathrm{SO}_4 \cdot \mathrm{H}_2 \mathrm{O}$
  • D
    $\mathrm{Na}_2 \mathrm{SO}_4 \cdot 7 \mathrm{H}_2 \mathrm{O}$
✓

Answer

Correct option: B.
$\mathrm{Na}_2 \mathrm{CO}_3 \cdot 10 \mathrm{H}_2 \mathrm{O}$
Natron is a mixture of sodium carbonate decahydrate and $17\%$ sodium bicarbonate. Small quantities of sodium chloride and sodium sulfate are also present.
$\mathrm{Na}_2 \mathrm{CO}_3 \cdot 10 \mathrm{H}_2 \mathrm{O}$ is the formula for Natron.

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