ATAR Notes: Forum

VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: aksman on June 09, 2008, 01:27:23 pm

Title: Lone pair in amine group??
Post by: aksman on June 09, 2008, 01:27:23 pm

are we required to draw the third lone pair off the nitrogen atom in the amine(-NH₂) group of amino acids etc??
some exams dont have it in the answers but the Neap SmartStudy practice exams have it in all answers.

does anyone know what the vcaa expects of us in the exam regarding this matter??

Title: Re: Lone pair in amine group??
Post by: vce01 on June 09, 2008, 05:58:39 pm

yeh my teacher said you should for sacs and stuff. but it couldd be different for VCAA, so you might need some reassurance from someone.

Title: Re: Lone pair in amine group??
Post by: Mao on June 09, 2008, 06:16:26 pm

they cant take mark off you for not putting them on [unless the question say "SHOW LONE PAIRS"]
so take the safer option - dont write it :)

Title: Re: Lone pair in amine group??
Post by: Pandemonium on June 10, 2008, 07:20:43 pm

^what the hell that doesn't even make sense.

Title: Re: Lone pair in amine group??
Post by: Mao on June 10, 2008, 07:46:31 pm

(version 2):
It is correct and conventional to not show lone pairs, and VCAA cannot deduct marks off you unless otherwise stated
hence the safer option is to not draw the lone pair.

happy? :)