Acids, Bases and Salts — Chemistry STD 10 — Question

The metal plate trough which current enters into an electrolyte is called ___________. It has ____________ of electrons.

When ammonia gas is passed through copper sulphate solution, it forms ________ [bluish white/pale blue] precipitate. This precipitate dissolves in excess of ammonia to form ________ [deep blue/deep green] colouration.

________ chromatography is a technique used to separate components of a mixture based on their different interactions with a stationary phase and a mobile phase.

For test of unsaturation _____ is used.

Metal A reacts with cold water forming hydrogen and new compound B. The anion combined with A in a substance B is named __________.

Brown ring formed during the testing of nitrate redical is chemically ________. [Fe₂(SO₄)₃.NO/FeSO₄.NO/FeSO₄.NO₂]

In the formation of sodium chloride, the sodium atom loses an electron from its valence shell and hence is ________. (oxidised/reduced).

The root in the IUPAC name of an organic compound depends upon the number of carbon atoms in _____________ .(any chain, principal chain)

Hydrogen and chlorine reacts in presence of ___________ to form hydrogen chloride.

_______ is a ferrous alloy.