Home
Class 12
CHEMISTRY
Assertion: Aquatic species are more comf...

Assertion: Aquatic species are more comfortable in warm waters than cold waters .
Reason: `K_H` values for both `N_2` and `O_2` decrease with increase of temperature

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion and the reason provided. ### Step 1: Analyze the Assertion The assertion states: "Aquatic species are more comfortable in warm waters than cold waters." - **Evaluation**: Generally, aquatic species, particularly fish and other organisms that rely on dissolved oxygen, tend to thrive better in colder waters. Cold water can hold more dissolved oxygen compared to warm water. Therefore, this assertion is **incorrect**. ### Step 2: Analyze the Reason The reason states: "K_H values for both N_2 and O_2 decrease with increase of temperature." - **Evaluation**: The Henry's law constant (K_H) indicates the solubility of gases in liquids. As temperature increases, the solubility of gases like O_2 and N_2 in water decreases, which means that less gas can be dissolved in warmer water. This statement is **correct**. ### Step 3: Conclusion Since the assertion is incorrect and the reason is correct, we can conclude that the relationship between the two is not valid. ### Final Answer Both the assertion and the reason are not aligned correctly. Therefore, the correct option is that both the assertion and the reason are false.
To solve the question, we need to analyze both the assertion and the reason provided. ### Step 1: Analyze the Assertion The assertion states: "Aquatic species are more comfortable in warm waters than cold waters." - **Evaluation**: Generally, aquatic species, particularly fish and other organisms that rely on dissolved oxygen, tend to thrive better in colder waters. Cold water can hold more dissolved oxygen compared to warm water. Therefore, this assertion is **incorrect**. ### Step 2: Analyze the Reason ...
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    NCERT FINGERTIPS ENGLISH|Exercise Types Of Solution|3 Videos

  • SOLUTIONS

    NCERT FINGERTIPS ENGLISH|Exercise Expressing Concentration Of Solutions|16 Videos

  • SOLUTIONS

    NCERT FINGERTIPS ENGLISH|Exercise EXEMPLAR PROBLEMS|24 Videos

  • PRACTICE PAPER -3

    NCERT FINGERTIPS ENGLISH|Exercise Practice Paper 3|50 Videos

  • SURFACE CHEMISTRY

    NCERT FINGERTIPS ENGLISH|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

why are the aquatic species more comofortable in cold water in comparision to warm water?

Assertion: The viscosity of water is less than blood. Reason : The viscosity of liquids decreases with increases in temperature.

Assertion (A): Ionic conductivities increase with increase of temperature and pressure. Reason (R): Viscosity of water decreases with increasew of temperature and increases with the increases of pressure.

Give reasons for the following : (A) Aquatic species are more comfortable in cold water than warm water. ( b) At higher altitude people suffer anoxia resulting in inability to think.

Assertion (A): pH of water increases with an increase in temperature. Reason (R) : K_(w) or water increases with increase in temperature.

Assertion: The value of ionic product of water (K_w) increases on increasing the temperature. Reason: The ionisation of water increases with an increase in temperature.

H_(2)S is far more volatile than water because :

statement-1: If water is heated of 50^(@)C then pH will increase. STATEMENT-2: K_(w) increases with increase in temperature.

A : It is better to wash cloths in hot water than cold water. R : On increasing temperature surface tension of water decreases.

Assertion (A) : NaCl is less soluble in heavy water than in ordinary water. Reason (R) : Dielectric constant of ordinary water is more than that of heavy water.