Chalk powder reacts with dilute hydrochloric acid to form a gas X which turns limewater milky due to the formation of a precipitate Y. On passing excess of gas X, the white precipitate dissolves to form a soluble compound Z.

Identify X, Y, and Z.

X : H_{2}, Y : C a C O_{3}, Z : C a (H C O_{3})_{2}

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X : C O_{2}, Y : C a C O_{3}, Z : C a (H C O_{3})_{2}

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X : C O_{2}, Y : C a O, Z : C a C O_{3}

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Solution

The correct option is B $X : C O_{2}, Y : C a C O_{3}, Z : C a (H C O_{3})_{2}$
Correct option is 'C': $X : C O_{2}, Y : C a C O_{3}, Z : C a (H C O_{3})_{2}$

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Similar questions

Q. Chalk powder reacts with dilute hydrochloric acid to formr a gas X which turns limewater milky due to the formation of a precipitate Y. On passing excess of gas X, the white precipitate dissolves forming a soluble compound Z. Identify X, Y and Z?

(a)

X : C O_{2}, Y : C a O, Z : C a C O_{3}

(b)

X : H_{2}, Y : C a C O_{3}, Z : C a (H C O_{3})_{2}

(c)

X : C O_{2}, Y : C a C O_{3}, Z : C a (H C O_{3})_{2}

When a piece of limestone reacts with dilute HCl, a gas X is produced. When gas X is passed through lime water, a white precipitate Y is formed. On passing excess of gas X, the white precipitate dissolves forming a soluble compound Z.

(a) What are X, Y and Z?

(b) Write equations for the reactions which take place:

(i) when limestone reacts with dilute HCl.

(ii) when gas X reacts with lime water to form white precipitate Y.

(iii) when excess of gas X dissolves white precipitate Y to form a soluble compound Z.

When calcium carbonate reacts with dilute hydrochloric acid, a gas X is formed. When gas X is passed through lime water, it turns milky due to the formation of precipitate Y. So, Y is ____.

Q. A white amorphous powder