In 3rd order , half life is .................to square of initial concentration . A ) directly proportional , B ) inversely proportional , C ) equal , D ) None of these ,

 

1 )  In 3rd order , half life is  . . . . . . . . . . . . . to  square of initial concentration .

A )  directly proportional ,                B )  inversely proportional ,

C )  equal ,                                        D )  None of these ,

Correct Answer : -   B ) inversely proportional ,

 

2 )  The value of absolute zero temperature is . . . . . . . . . . . . . . ,

A )  0 K ,                                           B ) 100 K ,

C )  273 K ,                                       D ) None of these ,

Correct Answer : -   A )  0 K  ,

 

3 ) Debye intermolecular forces are btw . . . . . . . . . . . . . ,

A )  polar ,                                        B )  Non – polar  ,

C )  Non polar and polar ,                          D ) Noneofthese. ,

Correct Answer : -  C) Non polar and polar ,   

 

4 )  The least value of e/m value for positive rays is for . . . . . . . . . . . . ,

 A )  Hydrogen atom ,                                B )  Neon atom ,

C )  Helium atom ,                                      D )  None of these ,

Correct Answer : -   A )  Hydrogen atom ,

 

5 )  Activation energy for the endothermic reaction is . . . . . . . . . . . . . . than for exothermic reaction.

A )  much greater ,                                      B ) much lower ,

C ) equal ,                                         D )None of these ,

Correct Answer : -   A )  much greater ,

 

6 )  The total no. of isomers of a disubstituted benzene compound is . . . . . . . . . . . . . ,

A )   2 ,                                             B )  3 ,

C )   4 ,                                              D )  None of these ,

Correct Answer : -   B )  3 ,

 

7 )  Kolbe's synthesis of sodium salt of butanoic acid gives . . . . . . . . . . . . . . . . . ,

A )   n - Hexane ,                              B )  n - octane ,

C )   both ,                                         D )  None of these  ,

Correct Answer : -   A )   n - Hexane ,

8 )  Dichlorine heptoxide react with water to produce  . . . . . . . . . . . . . . ,

A )  Hydrochloric acid ,                    B )  Sulphuric acid ,

C )  Perchloric acid ,                                    D )  None of these  ,

Correct Answer:-  C )  Perchloric acid ,

 

9 )  Brikland - edge process is used for the production of  . . . . . . . . . . . . . . . by the liquation of air .

A )  Nitro oxide ,                               B )  dinitrogen ,

C )  NaCl ,                                         D )  None of  these ,

Correct Answer : -  B )  dinitrogen ,

 

10 )   Rate of reactions of most organic compounds are . . . . . . . . . . . . . . .

A )  fast ,                                           B )  Slow ,

C )  depends on temperature ,                    D ) None of these ,

Correct Answer : -  B )  Slow ,

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