Question

AM-CLAS...
21- Boojho took an empty 1 point
plastic bottle, turned it upside
down and dipped its open
mouth into a bucket filled with
water. He then tilted the bottle
slightly and made the following
observations (i) Bubbles of air
came out from the bottle (ii)
Some water entered the bottle
(iii) Nitrogen gas came out in
the form of bubbles and
Oxygen got dissolved in water
(iv) No bubbles formed, only
water entered the bottle. Which
observation is / are correct? *
(i) and (ii)
O
(iv)
O (iii) and (iv)
O (i) only​

Answer 1

Answer:

AM-CLAS...

21- Boojho took an empty 1 point

plastic bottle, turned it upside

down and dipped its open

mouth into a bucket filled with

water. He then tilted the bottle

slightly and made the following

observations (i) Bubbles of air

came out from the bottle (ii)

Some water entered the bottle

(iii) Nitrogen gas came out in

the form of bubbles and

Oxygen got dissolved in water

(iv) No bubbles formed, only

water entered the bottle. Which

observation is / are correct? *

(i) and (ii)

O

(iv)

O (iii) and (iv)

O (i) only