1. Which has maximum calorific value ?

1. 1. Fat

   
   
   

   2. Protein

   
   
   

   3. Carbohydrate

   
   
   

   4. Amino acid

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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2. Water gas is a mixture of

1. 1. CO + N₂

   
   
   

   2. CO + H₂

   
   
   

   3. CH₄ + CO

   
   
   

   4. None

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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3. In any natural process

1. 1. The entropy of universe remains constant

   
   
   

   2. The entropy of universe tends towards maximum

   
   
   

   3. The entropy of universe towards minimum

   
   
   

   4. Any of the above can happen

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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4. If a refrigerator's door is kept open, then

1. 1. room will be cooled

   
   
   

   2. room will be heated

   
   
   

   3. may get cooled or heated depending upon the weather

   
   
   

   4. no effect on room

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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5. Which hydrocarbon is mainly present in gobar gas ?

1. 1. Butane

   
   
   

   2. Propane

   
   
   

   3. Methane

   
   
   

   4. Ethane

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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