Q61 of 312 Page 265

The substance which can produce brisk effervescence with baking soda solution is :

: Vinegar is a solution of about 5 to 8 per cent ethanoic acid in water. It can can produce brisk effervescence with baking soda solution

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59 One of the following substances is not added to make denatured alcohol. This is: 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

 62 The chemical which is not required for the preparation of soap in the laboratory is: 63 Which of the following can damage optic nerve leading to blindness, if taken internally?