Organic Chemistry — Chemistry STD 10 — Question

An acid having a basicity 2 is ________ [acetic acid/nitric acid/carbonic acid].

The salt prepared by the method of direct combination is __________.

Ammonium chloride is a __________ salt.

Copper(II) oxide which is ________ [brown/black] in colour is strongly heated and then ammonia gas is passed over it for sometime. The colour of the residue is ________ [reddish/silvery]. This reaction shows ________ [reducing/oxidising] nature of ammonia.

Furning nitric acid is obtained by dissolving an excess of _______ in conc. Nitric acid

Energy released when electron is added to a neutral gaseous atom is called ______.

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

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

The catalyst used for hydrogen of vegetable oil is ___________ .

Fill in the blanks :
Electrolysis is the passage of……………. (electricity/electrons) through a liquid or a solution accompanied by a ………….. (physical/chemical) change.