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C CI(4) and freons :...

`C CI_(4)` and freons :

A

are green compounds because they are green coloured

B

depletes ozones concentration

C

causes increase in ozone concentration

D

have no effect on ozone concentration

Text Solution

Verified by Experts

The correct Answer is:
B
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OP TANDON-HALOALKANES AND HALOARENES -Objective Questions
  1. A Grignard reagent is prepared by the action of magnesium in dry ether...

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  2. Iodoform is formed on warming iodine and sodium hydroxide with :

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  3. C CI(4) and freons :

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  4. Chloral is :

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  5. Chloroform reacts with oxygen in the presence of light to give:

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  6. Which is the correct formula of bleaching powder ?

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  7. When chlroform is treated with aniline and potassium hydroxide we get...

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  8. when (-)-2-methyl butan-1-ol is heated with conc. HCI (+)-1-chloro-2-...

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  9. the bad smelling substance formed by the action of alcoholic caustic p...

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  10. "………" would be obtained by boiling CHCI(3) with caustic soda.

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  11. Heating together of sodium ethoxide and ethyl iodide will give:

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  12. Chloropicrin is :

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  13. CH(3) OH overset(PI(3))(to)(A) overset(KCN)(to)(B) overset("Hydrolysis...

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  14. CH(3)CI overset(KCN)(to)(A) overset(H^(+)//H(2)O)(to)(B) The compoun...

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  15. Which of the following reactions is an example of nucleophilic substit...

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  16. Chloroform can be obtained from

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  17. Which of the following is the correct method of preparation of methyl ...

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  18. which of the following is gem-dihalide ?

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  19. Ethylene dichloride and ethyldene chloride are isomeric compound . Ide...

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  20. A sample of chloroform before using as an anaesthetic is tested by :

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