251. Which is the correct formula of bleaching powder ?

1. 1. Ca(OCI)CI

   
   
   

   2. CaO(OCI)

   
   
   

   3. Ca(OCI)₂

   
   
   

   4. Ca(OCI)₂CI

   
   
   

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   NA

   Correct Option: A

   NA

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252. Chloropicrin is

1. 1. Picric derivative

   
   
   

   2. Nitrochloroform

   
   
   

   3. Nitromethane

   
   
   

   4. Nitroethyl chloride

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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253. Lassaigne's test is used for the detection of

1. 1. Carbon only

   
   
   

   2. Hydrogen only

   
   
   

   3. Oxygen only

   
   
   

   4. Nitrogen, sulphur and halogens

   
   
   

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   NA

   Correct Option: D

   NA

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254. Nitrogen containing organic compound when fused with sodium metal forms

1. 1. NaNO₂

   
   
   

   2. NaCN

   
   
   

   3. NaNH₂

   
   
   

   4. NaNC

   
   
   

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   NA

   Correct Option: B

   NA

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255. Rectified spirit contains

1. 1. 75% alcohol

   
   
   

   2. 95.5% alcohol

   
   
   

   3. 56% alcohol

   
   
   

   4. 100% alcohol

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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