Question

i) A metal compound 'X' reacts with dil. H,SO, to produce effervescence. The gas evolved
extinguishes a burning candle. If one of the compounds formed is calcium sulphate, then
what is 'X' and the gas evolved? Also write a balanced chemical equation for the reaction
which occurred,​

Answer 1

Answer:

x is CO2 because in the prescence of CO2 candle can,t burn as it needs O2 ......

Answer 2

Answer:

X = Caco3

Explanation:

Equation :

CaCO3 + H2SO4 ---------- CaSO4 + CO2 +H2

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