IIT-JEE-Chemistry-Screening–2001

12. The correct order of basicities of the following compounds is : 


(a) 2>1>3>4 
(b) 1>3>2>4 
(c) 3>1>2>4 
(d) 1>2>3>4 

13. The number of isomers for the compound with molecular formula C2 BrClFI is: 
(a) 3 
(b) 4 
(c) 5 
(d) 6 

14. In the presence of peroxide, hydrogen chloride and hydrogen iodide do not give anti-Markovnikov addition to alkenes because : 
(a) Both are highly ionic 
(b) One is oxidising and the other is reducing 
(c) One of the steps is endothermic in both the cases 
(d) All the steps are exothermic in both the cases 

15. The compound that will react most readily with NaOH to form methanol is : 
(a) (CH3)4 N+ I-

(b) CH3 OCH3 
(c) (CH3)3 S+ I-

(d) (CH3)3 Cl 

16. A mixture of benzaldehyde and formaldehyde on heating with aqueous NaOH solution gives : 
(a) Benzyl alcohol and sodium formate 
(b) Sodium benzoate and methyl alcohol 
(c) Sodium benzoate and sodium formate 
(d) Benzyl alcohol and methyl alcohol 

17. The correct order of equivalent conductance at infinite dilution of LiCl,NaCl and KCl is: 
(a) LiCl>NaCl> KCl 
(b) KCl>NaCl> LiCl 
(c) NaCl>KCl>LiCl 
(d) LiCl>KCl>NaCl 

18. At constant temperature, the equilibrium constant (KP) for the decomposition reaction N2 O4  2NO2 is expressed by KP=4x2 P/(1-x2), where P= pressure,

x = extent of decomposition. Which one of the following statements is true: 
(a) KP increases with increase of P 
(b) KP increases with increase of x 
(c) KP increases with decrease of x 
(d) KP remains constant with change in P and x 

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