Question

Distinguish between
1. 1.Manganese 2. Copper
2. 1. Iron ore
2. Mica​

Answer 1

Answer:

Explanation:

Manganese When manganese dioxide is heated with conc. HCl, a pungent smelling greenish yellow chlorine gas is evolved. When copper oxide is heated with conc. HCl, no such gas is evolved.

Here's how to tell the difference between copper and brass. To distinguish copper from brass, which is an alloy of other metals, examine the color under good white light. Real copper should have a reddish-brown hue, like a penny. Brass items tend to have a yellowish tint.

: a naturally occurring mineral containing a valuable constituent (such as metal) for which it is mined and worked. 2 : a source from which valuable matter is extracted.

The identification of a sheet of mica is never much of a problem even for an untrained eye. All forms of mica have perfect basal cleavage, unique hexagonal shaped crystals, and an unmistakable "snap" of cleavage flakes when they are bent together and then released.