Question

on passing the gas (A) through (B), it turns milky. name the compound formed and write the chemical reaction involved. what will happen if dry compound B reacts with chlorine gas to form C. identify the compound A, B And C and write all the reactions

Answer 1

compound A is CO2. b is lime water and c is calcium

Answer 2

Identification of compound A, B, and C

• When carbon dioxide gas is passed through lime water which is chemically called calcium hydroxide, lime water turns milky due to the formation of a compound called calcium carbonate.
• The reaction involved in the process is:

$CO_2+Ca(OH)_2\rightarrow CaCO_3+H_2O$

• When $Ca(OH)_2$ reacts with chlorine gas the following reaction occurs:

$Ca(OH)_2 + Cl_2\rightarrow CaOCl_2+H_2O$

• Thus from the above equation the compounds A, B, and C are identified as:

1. Compound A: Carbon dioxide ($CO_2$)
2. Compound B: Calcium hydroxide ($Ca(OH)_2$)
3. Compound C: Calcium oxychloride ($CaOCl_2$)

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