Question

Assertion (A) : Molality is the most widely used unit for expressing concentration of a solution
Reason (R) : Molality of a solution change with temperature
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) Both A and R are false.

Answer 1

Answer:

Writing Practice

• Imagine reading your favourite book — how does the experience feel like? Is

the book a shiny new one or has it turned yellowish with time? Are the edges

of the page curled? Do the words speak to you or do they appear to be

happily dancing away ? Can you almost hear the author’s voice? What is the

texture of the book? Can you smell the fragrance of paper?

Describe your experience in three paragraphs. Don’t forget to give a suitable

title to your write-up.

Step-by-step explanation: