Choose from the list of substances, as to what matches the description given below:
[Acetylene gas, aqua fortis, coke, brass, barium chloride, bronze, platinum].
A catalyst used in the manufacture of nitric acid by Ostwald's process.

Choose from the list of substances, as to what matches the description : [Acetylene gas, aqua fortis, coke, brass, barium chloride, bronze, platinum). An aqueous salt solution used for testing sulphate radical.

Choose from the following list of substances, as to what matches the description given below: [Acetylene gas, aqua fortis, coke, brass, barium chloride, bronze, platinum). (i) A black powdery substance used for the reduction of zinc oxide during its extraction. (ii) The substance is an alloy of zinc, copper and tin.

Choose from the following list of substances, as to what matches the description given below : [Acetylene gas, aqua fortis, coke, brass, barium chloride, bronze, platinum] A gaseous hydrocarbon commonly used for welding purposes An aqueous salt solution used for testing sulphate radical. A black, powdery substance used for the reduction of zinc oxide during its extraction. A catalyst used in the manufacture of nitric acid by Ostwald's process. The substance is an alloy of zinc, copper and tin.

Choose from the list of substances - Acetylene gas, aqua fortis , coke , brass , barium chloride , bronze, platinum. An aqueous salt solution used for testing sulphate radical.

Choose from the list of substances - Acetylene gas, ayua fortis, coke, brass, barium chloride, bronze, platinum The substance which is an alloy of zinc, copper and tin.

In Ostwald's process for the manufacture of nitric acid the catalyst used is

Select from the list the gas that matches the description given in each case: [ammonia, ethane, hydrogen chloride, hydrogen sulphide, ethyne] This gas decolourizes bromine water,

Select from the list the gas that matches the description given in each case : [ammonia, ethane, hydrogen chloride, hydrogen sulphide, ethyne] This gas produces dense white fumes with ammonia gas.

Select from the list the gas that matches the description given in each case : (ammonia, ethane, hydrogen chloride, hydrogen sulphide, ethyne] (i) This gas is used for welding purposes. (ii) This gas is also a saturated hydrocarbon.

Select from the list the gas that matches the description given in each case: [ammonia, ethane, hydrogen chloride, hydrogen sulphide, ethyne] This gas produces reddish brown preciptate with nesslers reagent