Freons are known with respect to ozone layer deplection.
ii) How can you prepare a Freon from `C Cl_4`?

Freons are known with respect to ozone layer deplection. i) What are Freons?

How will you prepare aspirin from phenol ?

Acid chlorides can be use to prepare aldehydes and ketones. Can you prepare acetone from acetyl chloride? Explain.

How much copper can be obtained from 100 g of CuSO_4

Which of the following statement/s is /are wrong: (i) Nitric oxide and chlorofluoro carbons are two main ozone depleting agents. (ii) In the stratosphere CFCs undergo photochemical decomposition to produce chlorine free radical which destroy ozone layer. (iii) Ozone hole has mainly been observed in the stratosphere over Antarctica. (iv) Innon polar regions of the stratosphere, chlorine monoxide free radicals combine with NO_(2) and chlorine free radicals combine with methane, as a result the chain reaction causing ozone depletion stops v. Northern hemisphere is free from ozone depletion

How will you prepare Ca(OH)_2 and CaCO_3 from quick lime.

Potassium dichromate is an orange coloured crystal and is an important compound used as an oxidant in many reactions How do you prepare K_2Cr_2O_7 from chromite ore?