Nitric acid is manufactured by: MCQ with Answer and Explanation

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Nitric acid is manufactured by:

A. Ostwald process

B. Haber process

C. Bayer process

D. Contact process

Answer: Option A

Solution (By JKExamLibrary)

Ostwald process: ammonia is oxidized with air over Pt-Rh catalyst to NO, then NO₂, then absorbed in water to give HNO₃. Haber for NH₃, Contact for H₂SO₄, Bayer for alumina from bauxite.

This question belongs to: Science chemistry

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Practice More chemistry Questions

Question #1

Who is credited with the discovery of the nucleus through the alpha-particle scattering experiment?

A. J.J. Thomson

B. James Chadwick

C. Niels Bohr

D. Ernest Rutherford

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Correct Answer: Option D

Explanation:
Ernest Rutherford, along with his students Geiger and Marsden, conducted the famous gold foil experiment in 1911. By observing that a few alpha particles bounced back, he concluded that the atom has a small, dense, positively charged center called the nucleus.

This question belongs to: Science chemistry

Question #2

A solution turns methyl orange yellow. Its pH is:

A. Greater than 4.4

B. Exactly 7

C. Between 3 and 4.4

D. Less than 3

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Correct Answer: Option A

Explanation:
Methyl orange is red in acidic (pH4.4). So yellow indicates pH above 4.4; could be neutral or basic.

This question belongs to: Science chemistry

Question #3

Which of the following is an example of a gel?

A. Smoke

B. Cheese

C. Milk

D. Fog

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Correct Answer: Option B

Explanation:
A gel is a type of colloid where the dispersed phase is a liquid and the dispersed medium is a solid. Cheese, butter, and jellies are classic examples of gels. Milk is an emulsion (liquid in liquid), while fog and smoke are aerosols.

This question belongs to: Science chemistry

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