__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about __________ percent.

A

60

B

30

C

95

D

100

Neutraliser tank used for reacting nitric acid with ammonia for the production of ammonium nitrate is made of

A

Aluminium

B

Stainles steel

C

High silicon (14%) iron

D

Copper

Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.

A

Catalytic

B

Endothermic

C

Exothermic

D

Autocatalytic

Commercial nitric acid is coloured because it contains dissolved :

A

Oxygen

B

Nitrous oxide

C

Nitrogen dioxide

D

Coloured impurities

Nitric acid is produced on commercial scale in a fertiliser plant by

A

Oxidation of ammonia

B

CaNO₃ + H₂SO₄ reaction

C

Passing air through high voltage electric arc

D

None of these

Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at

A

Rourkela (under SAIL)

B

Bokaro (under SAIL)

C

Sindri (under FCI)

D

Baroda (under G.S.F.C.)

নিম্নের কোন পরীক্ষাটি সালফিউরিক এসিড ও নাইট্রিক এসিডের মধ্যে পার্থক্য করতে ব্যবহার করা যায়? (Which one of the following tests can be used to distinguish between sulphuric acid and nitric acid?

A

সার্বজনীন নির্দেশক দিয়ে পরীক্ষা। (Test with universal indicator)

B

সোডিয়াম কার্বনেট গুড়া যোগে। (Addition of sodium carbonate powder)

C

ম্যাগনেশিয়াম ফিতা যোগে। (Addition of magnesium ribbon)

D

বেরিয়াম নাইট্রেট দ্রবণ যোগে। (Addition of barium nitrate solution )

নিম্নের কোন পরিক্ষাটি সালফিউরিক এসিড ও নাইট্রিক এসিডের মধ্যে পার্থক্য করতে ব্যবহার করা যায়? (Which one of the following tests can be used to distinguish between sulphuric acid and nitric acid?)

A

সার্বজনীন নির্দেশ দিয়ে পরীক্ষা। (Test with universal indicator)

B

সোডিয়াম কার্বনেত গুড়া যোগে (Addition of sodiumcarbonate powder)

C

ম্যাগনেসিয়াম ফিতা যোগে। (Addition of magnesium ribbon)

D

বেরিয়াম নাইট্রেট দ্রবণ যোগে। (Addition of barium nitrate solution)

Catalytic ammonia synthesis reaction as in Haber's process is

A

Endothermic

B

Exothermic

C

Irreversible

D

None of these

Reaction of nitric acid and sulphuric acid with phosphate rock produces

A

Nitrophosphate

B

Diammonium phosphate

C

Tricresyl phosphate

D

Tributyl phosphate

__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

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