An element forms two oxides $X O$ , ${X O}_{2}$ . The oxide $X O$ is neutral , insoluble in water and burns with blue flame. It is poisonous. ${X O}_{2}$ is acidic in nature. Soluble in water and extinguishes fire.
(i) Identify the X
(ii) write reaction of ${X O}_{2}$ with water.
(iii) What happens when ${X O}_{2}$ is passed in lime water

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Solution

$x$ can be carbon. It atoms co & $c o_{2}$ .co is nural,insoluble in water and burn with blue flame.co2 is acidic in nature,soluble in water and extinguisher site.
${C O}_{2} + H_{2} O \to H_{2} C O_{3} {C O}_{2} + {C A (O H)}_{2} \to C a C O_{3} + H_{2} O$

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An element forms two oxides XO, XO2. The oxide XO is neutral , insoluble in water and burns with blue flame. It is poisonous. XO2 is acidic in nature. Soluble in water and extinguishes fire.(i) Identify the X(ii) write reaction of XO2 with water.(iii) What happens when XO2 is passed in lime water

x can be carbon. It atoms co &co2.co is nural,insoluble in water and burn with blue flame.co2 is acidic in nature,soluble in water and extinguisher site.CO2+H2O→H2CO3CO2+CA(OH)2→CaCO3+H2O

$x$ can be carbon. It atoms co & $c o_{2}$ .co is nural,insoluble in water and burn with blue flame.co2 is acidic in nature,soluble in water and extinguisher site.
${C O}_{2} + H_{2} O \to H_{2} C O_{3} {C O}_{2} + {C A (O H)}_{2} \to C a C O_{3} + H_{2} O$