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Consider the following statements.1. Ozone is an allotropic form of oxygen2. Phosphorus is present in DNA and RNA3. Halogens occur in free state in nature.4. The compounds of chlorine are used as cooling agents.The correct statements are:

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Consider the following statements.<br>1. Ozone is an allotropic form of oxygen<br>2. Phosphorus is present in DNA and RNA<br>3. Halogens occur in free state in nature.<br>4. The compounds of chlorine are used as cooling agents.<br>The correct statements are:






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