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

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of water each at

20^{o} C

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(X)

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100 g

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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.

Q. Write down the changes that will be seen in this instance and explain the reason behind it.
"A litmus paper was dropped into 2ml dilute HCl. Then 2ml concentrated NaOH was added to it and stirred."

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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.