Chemistry
Gas Q turns moist lead acetate paper silvery black. Identify Q. pH of R is 10. What kind of substance is R?
Practical Chemistry
9 Likes
Answer
The gas Q is H2S (Hydrogen sulphide).
Pb(CH3COO)2 [colourless] + H2S ⟶ PbS [black] + 2CH3COOH
R is an alkaline substance.
Answered By
5 Likes
Related Questions
State your observation : When moist starch iodide paper is introduced into chlorine gas.
The flame test with a salt P gave a brick red flame. What is the cation in P?
Select the gas that has a characteristic rotten egg smell. [ammonia, ethane, hydrogen chloride, hydrogen sulphide, ethyne]
State one relevant observation : When hydrogen sulphide gas is passed through lead acetate solution.