Answer the following questions :
(i) Why do soaps not work in hard water?
(ii) What are the main constituents of dettol?
(iii) How do antiseptics differ from disinfectants?

Explain the cleaning action of soap . Why do soaps not work in hard water ?

How do antiseptics differ from disinfectants ? Give one example of each.

Answer the following : (i) Why is the use of aspartame limited to cold foods and drinks ? (ii) How do antiseptics differ from disinfectants ? (iii) Why do soaps not work in hard water ?

Answer the following questions briefly and to the point: What do detritus food chains begin with?

How do antiseptics differ from disinfectants ? Give one example of each type .

Soaps do not work in hard water containing calcium and magnesium ions because

Soaps do not work in hard water containing calcium and magnesium ions because

Answer the following questions: (i) Why are vitamin A and vitamin C essential for us? (ii) What is the difference between a nucleoside and a nucleotide?

What are antibiotics? How do they differ from antipyretics?

For a general reaction A to B , plot of concentration of A vs time is given in figure. Answer the following questions on the basis of this graph. (i) what is the order of the reaction? (ii) What is the slope of the curve ? (iii) What are the units of rate constant?