166. A sample of chloroform before using as an anaesthetic, is tested by

1. 1. Fehling's solution

   
   
   

   2. Ammonical cuprous chloride

   
   
   

   3. Ammonical silver nitrate solution

   
   
   

   4. Silver nitrate solution after boiling with alcoholic KOH

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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167. Rochelle's salt is

1. 1. Sodium potassium tartrate

   
   
   

   2. Sodium tartrate

   
   
   

   3. Potassium tartrate

   
   
   

   4. Calcium tartrate

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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168. Vinegar contains

1. 1. 100% acetic acid

   
   
   

   2. 10-20% acetic acid

   
   
   

   3. 1% acetic acid

   
   
   

   4. 7-8% acetic acid

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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169. Which compound is soluble in water ?

1. 1. CS₂

   
   
   

   2. C₂H₅OH

   
   
   

   3. CCI₄

   
   
   

   4. CHCI₃

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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170. Which one of the following can be purified by sublimation ?

1. 1. F₂

   
   
   

   2. CI₂

   
   
   

   3. Br₂

   
   
   

   4. I₂

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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