Which is main constituent of egg-shell?

C a C O_{3}

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C a S i O_{3}

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C a S O_{4} . \frac{1}{2} H_{2} O

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C a S O_{4} . 2 H_{2} O

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Solution

The correct option is A $C a C O_{3}$
Eggshell is made almost entirely (95%) of calcium carbonate $(C a C O_{3})$ crystals. It is a semipermeable membrane, which means that air and moisture can pass through.

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Similar questions

Q. Is there any difference btw the uses of

C a S O_{4} .2 H_{2} O

C a S O_{4} . \frac{1}{2} H_{2} O

Q. "

C a C O_{3}

is the main constituent of egg shell."
Answer whether the above statement is true or false.
If true enter 1, else enter 0

$\begin{matrix} List I & List II 1. Plaster of Paris & a. C a S O_{4} .2 H_{2} O 2. Epsomite & b. C a S O_{4} .1 / 2 H_{2} O 3. Kieserite & c. M g S O_{4} .7 H_{2} O 4. Gypsum & d. M g S O_{4} . H_{2} O e. C a S O_{4} \end{matrix}$

Q. You may have noticed that chicken-egg is very strong along its long axis so much so that it does not break even when pressed very hard. Which of the following is the main constituent of egg-shell ?

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Which is main constituent of egg-shell?

The correct option is A CaCO3Eggshell is made almost entirely (95%) of calcium carbonate (CaCO3) crystals. It is a semipermeable membrane, which means that air and moisture can pass through.

The correct option is A $C a C O_{3}$
Eggshell is made almost entirely (95%) of calcium carbonate $(C a C O_{3})$ crystals. It is a semipermeable membrane, which means that air and moisture can pass through.