11.6 Carboxylic Acid — Chemistry STD 10 — Question

In the formation of magnesium oxide, the magnesium atom loses two electrons from its valence shell and hence is a ________. (oxidising agent/reducing agent).

When hot concentrated sulphuric acid is added to sulphur, it gets oxidised to _______ .

The metal whose oxide, which is amphoteric, is reduced to metal by carbon reduction __________.

The most active metals are present in __________1 and 2 of the periodic table.

Correct the following:
A reddish brown precipitate is obtained when ammonium hydroxide is added to ferrous sulphate.

pOH of the solution is the measure of indication of ________ concentration in the solution.

Hydrogen and metallic ions are ________, (cations/anions) because they ________ (gain/lose) electrons.

Vinegar contains __________ acid.

_______ is used in machine parts due to its _______ tensile strength.

An alloy used for making cases for cartridges is _______ .