Which one of the following is an ore of silver
Cassiterite is an ore of
The most abundant metal in the earth crust is
Al is most abundant metal in the earth crust.
Which one of the following is a mineral of irons
“Metals are usually not found as nitrates in their ores”Out of the following two (A and B) reasons which is / are truefor the above observation
Nitrates are less found in earth crust because they arehighly water soluble and very stable because do notdecompose easily on heating so the answer is (b).