Q62 of 312 Page 265

The chemical which is not required for the preparation of soap in the laboratory is:

Following raw materials are required for making soap in a laboratory: (i) Vegetable oil (like castor oil, cottonseed oil or soyabean oil) (ii) Sodium hydroxide (caustic soda) (iii) Sodium chloride (common salt)

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60 One of the following organic compounds cannot decolourise the red-brown colour of bromine water. This compound is:

Options||A. C14H28


B. C7H12


C. C6H14


D.C9H16

 61 The substance which can produce brisk effervescence with baking soda solution is : 63 Which of the following can damage optic nerve leading to blindness, if taken internally? 64 The usual disease caused by the excessive drinking of alcohol over a long period of time is: