The Ostwald process is used for the manufacture of:
A. Ammonia
B. Sodium carbonate
C. Sulphuric acid
D. Nitric acid
Answer: Option D
Solution (By JKSSB Mock Tests)
The Ostwald process is the industrial method for manufacturing nitric acid (HNO₃). It involves the catalytic oxidation of ammonia (NH₃) to nitric oxide (NO), which is then further oxidized to nitrogen dioxide (NO₂) and absorbed in water to form concentrated nitric acid.
Explanation:
James Chadwick discovered the neutron in 1932 by bombarding beryllium with alpha particles, which emitted a highly penetrating radiation consisting of neutral particles with mass similar to protons. Thomson discovered the electron, Rutherford the proton, and Dalton proposed the foundational atomic theory of matter.
Explanation:
The atomic number (Z) equals the number of protons, which is 17. The mass number (A) is the sum of protons and neutrons. Therefore, the number of neutrons = A - Z = 35 - 17 = 18. This atom is Chlorine-35, a stable isotope of chlorine.
Explanation:
Liquefied Petroleum Gas (LPG) consists primarily of propane (C₃H₈) and butane (C₄H₁₀) liquefied under pressure. A strong-smelling mercaptan is added as odorant to detect leaks. CNG is mainly methane. LPG is used for cooking and as automotive fuel (autogas). It has higher calorific value than natural gas. It is heavier than air, so it settles in low areas, posing a safety hazard if leaked.
No comments yet. Be the first to start the discussion!