Saminov husniddin tayyorlov kursi qc

FREONLAR

1. C₂H₄FCl ushbu freon qanday nomlanadi?

A) Freon-142 B) Freon-132
C) Freon-141 D) Freon-151

2. C₂H₂F₂Cl₂ ushbu freon qanday nomlanadi?

A) Freon-142 B) Freon-132
C) Freon-141 D) Freon-151

3. C₂H₃F₂Cl ushbu freon qanday nomlanadi?

A) Freon-142 B) Freon-132
C) Freon-141 D) Freon-151

4. C₂H₃FCl₂ ushbu freon qanday nomlanadi?

A) Freon-142 B) Freon-132
C) Freon-141 D) Freon-151

5. Freon-22 ning formulasini ko’rsating.

A) CF₂Cl₂ B) CHF₂Cl C) CHFCl₂ D) CH₂FCl

6. Freon-12 ning formulasini ko’rsating.

A) CF₂Cl₂ B) CHF₂Cl C) CHFCl₂ D) CH₂FCl
7. Freon-21 ning formulasini ko’rsating.
A) CF₂Cl₂ B) CHF₂Cl C) CHFCl₂ D) CH₂FCl
8. Freon-31 ning formulasini ko’rsating.
A) CF₂Cl₂ B) CHF₂Cl C) CHFCl₂ D) CH₂FCl