The Indian Salt Petre is
Ammonium nitrate (NH4 NO3)
Sodium nitrate (Na NO3)
Potassium nitrate (KNO3)
Calcium nitrate Ca(NO3)2
C. Potassium nitrate (KNO3)
The unit for equivalent conductivity is
ohm-1 cm-1
ohm-1 cm-2 ep-1
ohm-1 cm2 eq-1
S cm-2 eq-1
C. ohm-1 cm2 eq-1