MDCAT Test Biology Past Papers, UHS Lahore Past,Paper

MDCAT Biology Full Book Papers

1.CFCl3 is also known as

a            Freon-11           
b            Freon-12

c            Freon-113         
d            All these

2.When carbon tetrachloride reacts with HF then product

a            Freon-12           
b            Phosgene

c            Chloroform      
d            None

3.No. of sigma bond in phosgene gas are

a  1            b  2

c  3            d  5

4.When chloroform react with HNO3 then product formed is

a            Chloretone       
b            Chloropicnin

c            Isocyanide        
d            Acetylene

5.Which one is non aromatic

a            Chloropecnin 
b            Salicylaldehyde

c            Chloretone       
d            Both a, c

6.Which one is not involved in formation of phosgene

a            Chloroform      
b            Iodoform

c            Carbon tetrachloride 
 d.Both a, c

7.Which one is also known as chloral

a            Acetaldehyde 
b            Trichloro acetaldehyde

c            Chloropocnin  
d            None

8.Which one is not used as solvent

a            Chloroform      
b            Carbon tetrachloride

c            Iodoform          
d            Both a, c

9.Which one is known as allylic species

a            CH2=CH-Cl        
b            CH2=CH-CH2-Cl

c            C6H5-OH           
d            CH3-CH2-OH

10.Which bond is more polar in alkyl halide

a  C-C        b   C-H

c  C-X        d   H-H

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