191. Photographic plates are coated with a film of

1. 1. AgCl

   
   
   

   2. AgBr

   
   
   

   3. Agl

   
   
   

   4. AgNO₃

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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192. The reducing agent in thermite process is

1. 1. Mg

   
   
   

   2. BaO₂

   
   
   

   3. Al

   
   
   

   4. MnO₂

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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193. Which of the following is known as pseudo alum

1. 1. K₂SO₄.AI₂ (SO₄)₃.24H₂O

   
   
   

   2. KCr(SO₄)₂.12H₂O

   
   
   

   3. KMn(SO₄)₂.12H₂O

   
   
   

   4. NH₄Fe(SO₄)₂.12H₂O

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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194. Which of the following is an acid ?

1. 1. B(OH)₃

   
   
   

   2. AI(OH)₃

   
   
   

   3. TI(OH)₃

   
   
   

   4. In(OH)₃

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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195. Which of the following compounds is formed in the borax bead test ?

1. 1. Metal metaborate

   
   
   

   2. Boron oxide

   
   
   

   3. Metal boride

   
   
   

   4. Metallic boron

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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