Question

chemical equation
the
write the chemical
of
election in which
the change
colour has taken place
ارت​

Answer 1

(i) Change in colour: Reaction between lead nitrate solution and potassium iodide solution. Pb(NO3)2(aq)+2KI → PbI2(s)+2KNO3(aq) In this reaction, colour changes from colourless to yellow. (ii)Change in temperature: Action of dilute sulphuric acid on zinc. Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2 In this reaction, heat is evolved (iii) Formation of precipitate: Action of barium chloride on sodium sulphate. BaCl2(aq) +Na2SO4(aq) → BaSO4(s) +2NaCl(aq) BaSO4(s) - pptRead more on Sarthaks.com - https://www.sarthaks.com/84145/write-chemical-equation-reaction-example-which-following-change-taken-place-change-colour