Question

16. Account for the following

(i) State the relation between hydrogen ion concentration of an aqueous solution and its pH.

(ii) An aqueous solution has a pH value of 7.0. Is this solution acidic, basic or neu

(iii) Which has a higher pH value, 1 M HCl or 1 M NaOH solution

(iv) Tooth enamel is one of the hardest substances in our body. How does it undergo damage due
to eating chocolates and sweets? What should we do to prevent it?

(v) How do H+ ions exist in water?

Answer 1

ii) neutral
3)1M of hcl
4) by eating food the tooth get acidic and it starts spoiling we can prevent it by brushing twice a day usage of fluroid or we can use basic solution for curing
that's all I know

Answer 2

1. more the hydrogen ion concentration less is the ph

2, ph is 7 so solution is neutral

3- HCl

4- it occurs becoz bacteria present in our mouth react with sugar .... then releases acid and this starts tooth decay ...

regular brushing must be done

5- water is a polar solvent ...... thus H2O itself disosiates into H+and OH -IONS ☺