Observe the given chemical change and answer the following.
i) Identify 'A' and 'B'.
ii) Write the commercial name of calcium hydroxide.
iii) Identify products 'C' and 'D', when $H C l$ is allowed to react with calcium oxide.
iv) Say whether calcium oxide is acidic or basic.

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Solution

(i) $C a O + C O_{2} ⟶ C a C O_{3}$
Therefore A is $C a C O_{3}$ and B is $C O_{2}$
(ii) Commercial name of $C a (O H)_{2}$ is Milk of lime.
(iii) $C a O + 2 H C l ⟶ C a C l_{2} + H_{2} O$
Here C is $C a C l_{2}$ and D is $H_{2} O$ .
(iv) Since $C a O$ reacts with acid to give salt and water, it is basic.

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Observe the given chemical change and answer the following.i) Identify 'A' and 'B'.ii) Write the commercial name of calcium hydroxide.iii) Identify products 'C' and 'D', when HCl is allowed to react with calcium oxide.iv) Say whether calcium oxide is acidic or basic.

(i) CaO+CO2⟶CaCO3Therefore A is CaCO3 and B is CO2(ii) Commercial name of Ca(OH)2 is Milk of lime.(iii) CaO+2HCl⟶CaCl2+H2OHere C is CaCl2 and D is H2O.(iv) Since CaO reacts with acid to give salt and water, it is basic.

Observe the given chemical change and answer the following.
i) Identify 'A' and 'B'.
ii) Write the commercial name of calcium hydroxide.
iii) Identify products 'C' and 'D', when $H C l$ is allowed to react with calcium oxide.
iv) Say whether calcium oxide is acidic or basic.