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" />ais true butbis false
aandbare true
aandbare false
ais false butbis true
Metal nitrates such as potassium nitrate, sodium nitrate are stable. The statement (b) "Metal nitrates are highly soluble in water" is true. Metal nitrates such as potassium nitrate, sodium nitrate have high water solubility. Hence, they are washed out by rainwater and not found in the ores. Hence, option A is correct.