Question

ssertion- Reason QuestionsFor the following questions, two statements are given- one labeled Assertion (A) and the other labeled Reason(R). Select the correct answer to these questions from the codes (i), (ii), (iii) and (iv) as given below.i) Both A and R are true and R is correct explanation of the assertionii) Both A and R are true but R is not the correct explanation of the assertion.iii) A is true but R is false.iv) A is false but R is true.4. Assertion (A): Solid carbon dioxide is also known as dry ice.Reason(R): Solid carbon dioxide is stored under low pressure.5. Assertion (A): The rate of diffusion of liquids is higher than that of solids.Reason (R): In the liquid state, particles move freely and have greater space between each other as compared to particles in the solid state.6. Assertion (A): Clothes dry faster on a windy day.
Reason(R): If the amount of water in air is high, the rate of evaporation decreases.7. Assertion (A): Solids are highly compressible.Reason(R): In solids, constituent particles are closely packed and there is virtually no space between the particles.8. Assertion (A): Liquids such as petroleum, alcohol, acetone etc. evaporate faster than water.Reason(R): The liquids that evaporate faster are called volatile liquids.9. Explain the following:i) Trees acquire more leaves during summer.ii) Rate of evaporation of an aqueous solution decreases with increase in humidity.iii) People sprinkle water on the roof after a hot sunny day.10. The melting point of two solids X and Y are 300K and 400K respectively. Which has more intermolecular force? Explain.11. It is a hot summer day. Priyanshi and Ali are wearing cotton and nylon clothes respectively. Who do you think would be more comfortable and why?12. Explain with the examples from your daily life where cooling is caused by evaporation.13. Water as ice, has cooling effect, whereas water as steam may cause severe burns. Explain these observations.14. Explain interconversion of three states of matter with the help of a flow chart.15. You want to wear your favourite shirt to a party, but the problem is that it is still wet after awash. What steps would you take to dry it faster?

Answer 1

Answer: here is your answer

Explanation: Assertion (A)  :   Simla is colder than Delhi.  

Reason (R)     :  Simla is at a higher altitude as compared to Delhi.  

A] Both A and R are true

so similary we used this Simla is colder than Delhi because it is situated at a higher altitude and temperature decreases by 1C for every 165 metres of ascent.

Hence, option A is correct