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JEE Main
Exam
JEE Main
Subject
Chemistry
Chapter
Practical Chemistry

JEE Main · Chemistry · Practical Chemistry

Microcosmic salt bead test of salt (X) yields semi-translucent...

Microcosmic salt bead test of salt (X)\left(X\right) yields semi-translucent mass. Therefore it contains

Options

  1. ACo{\left({NO}_{3}\right)}_{2}
  2. BCa{\left({NO}_{3}\right)}_{2}
  3. CCuSO4{CuSO}_{4}
  4. DMnSO4{MnSO}_{4}

Correct answer

B. Ca{\left({NO}_{3}\right)}_{2}

Step-by-step solution

Silica is not dissolved by the phosphate bead. When a silicate salt is strongly heated in the bead, silica is liberated and this remain suspended in the bead in the form of semi-translucent mass.

CaSiO3+NaPO3→NaCaPO4+SiO2{CaSiO}_{3} + {NaPO}_{3} \to {NaCaPO}_{4} + {SiO}_{2}
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