How can you remove the hard calcium carbonate | vedclass

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(N/A) $(i)$ When the egg is placed in a dilute mineral acid solution (preferably dilute $HCl$ solution),the hard external $CaCO_3$ layer of the egg di

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(N/A) $(i)$ When the egg is placed in a dilute mineral acid solution (preferably dilute $HCl$ solution),the hard external $CaCO_3$ layer of the egg dissolves and is removed without damaging its semipermeable membrane.
$(ii)$ Yes,this egg can be inserted into a bottle with a narrow neck without distorting its shape. The process involves the phenomenon of osmosis:
$1.$ The egg is placed in a mineral acid solution to remove the shell.
$2.$ The egg is then placed in a hypertonic solution. Due to osmosis,water moves out of the egg,causing it to shrivel and decrease in size.
$3.$ Because the egg has shrivelled,it can now be inserted easily into a bottle with a narrow neck.
$4.$ Once inside,a hypotonic solution is added to the bottle. Due to endosmosis,water enters the egg,and it regains its original shape.

How can you remove the hard calcium carbonate layer of the egg without damaging its semipermeable membrane? Can this egg be inserted into a bottle with a narrow neck without distorting its shape? Explain the process involved.

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