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The correct option is (b) False

For explanation: In electrolysis, Solutions of potassium or SODIUM hydroxide are commonly employed in the ELECTROLYTIC CELLS. The solution must be circulated through the cells to AVOID metal concentration at the CATHODE and dilution at the anode.

Right CHOICE is (a) Electrolysis

For EXPLANATION: Electrolysis, is method of hydrogen PRODUCTION is perhaps the best method AVAILABLE for small PLANTS where the operations are not large enough to warrant the large-scale water-gas catalytic method of production.

Right choice is (b) Electricity

For explanation: Hydrogen by’ Electrolysis of Water. Cheap electrical POWER is the principal factor determining the PRODUCTION of hydrogen by the electrolysis of water. The purity of this hydrogen is an ASSET.

Right option is (C) Iron oxide

Explanation: In BOSCH process, the CARBON monoxide in the gas is made to react with steam in the presence of an iron oxide catalyst, and additional hydrogen along with carbon dioxide is OBTAINED.

The correct OPTION is (b) Hydrogen from water

Explanation: Hydrogen from Water Gas and STEAM. The water-gas catalytic, or Bosch, process is one of the most important for PRODUCING industrial hydrogen today. Water gas is readily made in standard water-gas generators from very cheap RAW materials, viz., coal or coke, steam, and air.

The CORRECT choice is (C) 75-95

Easy explanation: By-product Hydrogen from Catalytic Reforming. The FOURTH process for preparing hydrogen from hydrocarbons-catalytic reforming-yields as a by-product an off-gas containing 77-95 per CENT hydrogen.

Right option is (B) Steam reforming

The best explanation: This processes is one of the best methods available to petroleum HYDROGENATION or synthesis plants for the PRODUCTION of HYDROGEN from natural gas, from waste refinery gas, or from the GASEOUS products resulting from hydrogenation.

Right answer is (B) False

For EXPLANATION I would SAY: The over-all REACTION is strongly exothermic, although some of the reaction heat liberated in the first -step is absorbed by the endothermic REFORMING reactions.

The correct OPTION is (a) True

The best I can EXPLAIN: The oxygen-reforming process was FIRST developed for use with NATURAL gas as a fuel but also has been applied to light oils and heavy bunker type fuel oils.

The correct answer is (a) Endothermic

To ELABORATE: The Catalytic REACTION is highly endothermic, and so the CATALYST is contained in tubes consisting of a high-chromium, nickel ALLOY STEEL capable of withstanding these high temperatures.

The CORRECT option is (c) Both C and H2

The explanation: CRACKING mean thermal decomposition, here thermal decomposition of natural gas PRODUCES CARBON and hydrogen.

Right answer is (d) All of the mentioned

Best explanation: Hydrogen is available from hydrocarbons by four PROCESSES: (1) thermal decomposition, (2) steam reforming, 3) PARTIAL oxidation, and (4) as a by-product from catalytic reforming.

Right answer is (c) Adding H to FATTY acid

For explanation: Fat hydrogenation, the addition of hydrogen to fatty acids-particularly EDIBLE OILS such as cottonseed and soybean-although accounting for less than ONE per cent by weight of the oil, is an important outlet for hydrogen.

Right ANSWER is (b) False

Best explanation: Technical application of hydrogenation was in the REDUCTION of the double bonds between two carbon ATOMS for the purpose of CONVERTING liquid fats into solid fats, or as it is often called fat HARDENING.

The correct answer is (b) MILD

To explain I WOULD say: Mild hydrogenation is being used extensively in PETROLEUM processing, especially in PRODUCT finishing of naphtha, kerosene, diesel fuel, heating OIL, and distillate lubricating oils.

Right choice is (a) Yes

Easy explanation: Of the above methods the one most frequently CONFUSED with catalytic HYDROGENATION is hydrogen transfer, which INVOLVES the saturation of ethylenic double bonds by the direct exchange of hydrogen generally from one SUBSTANCE to another with essentially no PARTICIPATION of free molecular hydrogen. The process is recognized as being separate and distinct from hydrogenation or dehydrogenation and apparently proceeds by an ionic mechanism taking place over an acid catalyst.

Right choice is (d) All of the mentioned

Easiest explanation: Reactions which involve molecular hydrogen and catalysts are REDUCTIVE amination (hydroammonolysis), HYDROFORMYLATION (OXO and Oxoyl reactions), and the SYNTHESIS of ammonia.

Correct answer is (d) All of the mentioned

Best explanation: IMPORTANT methods of reduction other than CATALYTIC hydrogenation are: (1) by metals in acid or basic solution, (2) by ALKALI metals in alcoholic solution, (3) by electrolysis, (4) by alkali metals and hydrazine, (5) by complex metal HYDRIDES, and (6) by hydrogen transfer.

The correct answer is (c) REDUCTION

Easiest explanation: Hydrogenation, in the exact usage of the designation, is synonymous with reduction, which is the term USUALLY applied to a REACTION in which oxygen or some other element (most commonly nitrogen, SULPHUR, carbon, or halogen) is WITHDRAWN from or hydrogen is added to a molecule.