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''Metals are usually not found as nitrates in their ores''. Out of the following two (a and b) reasons which is/are true for the above observation? (a) Metal nitrates are highly unstable (b) Metal nitrates are highly soluble in water
A
a and b are true
B
a and b are false
C
a is false but b is true
D
a is true but b is false
Detailed Solution
Metal nitrates are highly soluble in water, so they get washed away and do not occur as minerals in the Earth's crust.
So (a) is false and (b) is true.
So (a) is false and (b) is true.