Question

(a) Write any two methods by which salts can be prepared. Support your answer with chemical equations. (b) Write how the following seeds are dispersed with example:- (i) Seeds with wings (ii) Small and light seeds (iii) Seeds with spines/hooks​

Answer 1

Answer:

Salt can be prepared -

(i) Acid reacts with base to give salt and water

HCl+KOH→KCl+H2O

acid-base      salt

Metals react with acids to form salt and give hydrogen gas

Mg+2HCl→MgCl2+H2

B)

i) Seeds with wings are dispersed by wind

ii) Small and light seeds are dispersed by wind

iii) Seeds with spines / hooks are dispersed by animals

Explanation:

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