Metallurgy — Chemistry STD 10 — Question

The major impurity associated with iron obtained from blast furnace.

Arrange the metals:
calcium, iron, magnesium and sodium in order of their reactivity with water placing the most reactive first.

Give balanced reactions for the following conversion:
Ammonia to nitrogen using trichloride.

Answer the following question:
Write the constituents of the electrolyte for the extraction of aluminium.

Give a chemical test to distinguish between the following pair of compounds:
Sodium chloride solution and sodium nitrate solution.

An element L consists of molecules.
Why L is heated with iron metal, it forms a compound FeL. What chemical term would you use to describe the change undergone by L?

Explain the following :
Zinc can produce hydrogen on reacting with acids but copper cannot.

The type of substances which undergo complete decomposition in aqueous solution form and fused state when electric current passes through them.

What do you notice when acetic acid reacts with litmus ?