MCQ
Depletion of ozone layer is caused by
- ✓Freon
- BAlkane
- CGringard reagent
- DAll of these
✓
Answer
Correct option: A.
Freon
a
The main cause of ozone depletion and the ozone hole is manufactured chemicals, especially manufactured halocarbon refrigerants, solvents, propellants and foam-blowing agents (chlorofluorocarbons Freon ,$(CFCs)$, $HCFCs$, halons), referred to as ozone-depleting substances $(ODS).$
The main cause of ozone depletion and the ozone hole is manufactured chemicals, especially manufactured halocarbon refrigerants, solvents, propellants and foam-blowing agents (chlorofluorocarbons Freon ,$(CFCs)$, $HCFCs$, halons), referred to as ozone-depleting substances $(ODS).$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which of the following has minimum freezing point
The electrolytic decomposition of dilute sulphonic acid with platinum electrode in cathodic reaction is
$F{e^{2 + }}$ shows
→At ${25\,^o}C$, the highest osmotic pressure is exhibited by $0.1\,M$ solution of
→Chloroform reacts with concentrated $HN{O_3}$ to give
→Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity ?
An unripe mango placed in a concentrated salt solution to prepare pickle, shrivels because _______________
Write the dehydration rate of ${S_{{N^1}}}$ reaction of following Alcohols
→$(A)$ on heating isomerizes to $(B)$ What is the structure of $(B)$ ?
→The name of complex ion, $[Fe(CN)_6]^{3-}$ is
→