Question

Number 1 & 3 ( no.2 Is not )
Please answer :(

Answer 1

3.

a)The time interval is 12-14s

b)During A-B = Slope of line AB=50/4=25/2.

During BC= acceleration is 0 because slope is 0.

During CD=Slope of line CD=-50/2=

-25m/s2

c)Distance=Area under v-t graph.

=(50*4)/2 +50*8 +(50*2)/2=550 m.

d)Avg vel=Total displacement/time

=550/14=39.28 m/s.

1) For carbohydrates, bromine water test

it gives white ppt.

For lipids, add ethanol to it .Then use sedimentation and decantion. If it occurs, it is a lipd