NUMS 2021 PAPER

1. Alcohol and phenol can be differentiated by which reaction

 
 
 
 

2. 50% NaOH is used in:

 
 
 
 

3. Carboxylic acids are soluble in water due to:

 
 
 
 

4. Esterification occurs in the presence of:

 
 
 
 

5. Benzene can be prepared from sodium benzoate by reaction with:

 
 
 
 

6. Empirical formula is related to molecular formula by:

 
 
 
 

7. Which one is more reactive among halogens

 
 
 
 

8. One calorie is equal to:

 
 
 
 

9. The net enthalpy change in a chemical reaction is same whether it is brought about in two or more different ways in one or several steps. It is known as:

 
 
 
 

10. Which is not true about rate of reaction

 
 
 
 

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