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Found 1 free book(s)ENVIRONMENTONMENTONMENTALALAL ENVIRENVIRONMENTONMENT ...
ncert.nic.inExemplar Problems, Chemistry178 (i) CO (ii) Hydrocarbon (iii) Peroxyacetyl nitrate (iv) NO 11. Which of the following statements is correct? (i) Ozone hole is a hole formed in stratosphere from which ozone oozes out .