Std-10 Most Imp Ch 3 Gseb L-5

Which of the following should be most volatile? I) CH_3 CH_2 CH_2 NH_2 II) (CH_3)_3 N III) IV) CH_3 CH_2 CH_3

A : When C_(2) H_(5) - O- CH_(3) is reacted with oen mole of Hl then C_(2)H_(5)OH& CH_(3) l is formed . R : It is S_(N)1 reaction

List two most common STDs.

Most common bacterial STD is:

What is [H^(+)] in mol//L of a solution that is 0.20 M in CH_(3)COONa and 0.1 M in CH_(3)COOH ? K_(a) for CH_(3)COOH is 1.8xx10^(-5) ?