Identify the following substances :
An alkaline gas which gives dense white fumes with hydrogen chloride.

Identify the following substances : An alkaline gas A which gives dense white fumes with hydrogen chloride.

Identify the following substances: An acidic gas which gives dense white fumes with NH_3 .

Name :An alkaline gas .X. which gives dense oxide fumes with HCl.

A gas which gives dense white fumes with rod dipped in HCl.

Identify the substances which are underlined: An ul("acidic gas") which gives dense white fumes with NH_3

Identify the following substances: An alkane which can also be called a green house gas.

Identify : An alkaline gas which produces dense white fumes when reacted with HCl gas .

Identify the following substances : A dilute acid B which does not normally give hydrogen when reacted with metals but does give a gas when it reacts with copper.

Identify the following substances : Gas D is a colourless gas which can be used as a bleaching agent.

A gas 'X' combines with another gas 'Y' in the presence of a catalyst 'C' to form a colourless gas 'Z'. The gas Z gives dense white fumes with hydrogen chloride and the gas 'Y' turns red litmus blue. Name the catalyst C.