Question

give answer for this three pls emergency​

Answer 1

Answer:

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Explanation:

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(i) Fe

3+

with NaOH gives reddish brown precipitate of Fe(OH)

3

.

(ii) Pb

+2

with NH

4

OH gives gelatinous white precipitate of Pb(OH)

2

.

(iii) Ca

+2

with NaOH gives white precipitate of Ca(OH)

2

which dissolves in excess.