2 ml of dettol is added to a beaker containing 500 ml of water and stirred. State four observations that you make. [2 MARKS]

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Solution

Observations: 0.5 marks each

Level of water remains the same.

A true solution is obtained.

The solution of water becomes white.

Smell can be detected even on repeated solution.

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2 ml of dettol is added to a beaker containing 500 ml of water and stirred. State four observations that you make. [2 MARKS]

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Q. Two identical beakers labeled as

(X)

and

(Y)

contain

100 {c m}^{3}

of water each at

20^{o} C

. To the water in the beaker

(X)

100 g

of water at

0^{o} C

was added and stirred to mix thoroughly. To the beaker

(Y)

100 g

of ice at

0^{o} C

was added and stirred till it melted into water. The water in the beaker

(Y)

will be:

Assertion:- When 2 ml of dettol is dissolved in water then we get the smell of dettol from the water. We put this solution containing dettol in another beaker containing clear water and they are mixed in the ratio of 9:1 (9 parts of clear water to 1 part of dettol solution) at every step of dilution then it takes infinite similar steps to get a water free from smell of dettol

Reason:- Particles of matter are too tiny in size.

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2 ml of dettol is added to a beaker containing 500 ml of water and stirred. State four observations that you make. [2 MARKS]

Observations: 0.5 marks each Level of water remains the same. A true solution is obtained. The solution of water becomes white. Smell can be detected even on repeated solution.

Observations: 0.5 marks each

Level of water remains the same.

A true solution is obtained.

The solution of water becomes white.

Smell can be detected even on repeated solution.