Chemistry
State the inference drawn from the following observations :
(i) On carrying out the flame test with a salt P a brick red flame was obtained. What is the cation in P ?
(ii) A gas Q turns moist lead acetate paper silvery black. Identify the gas Q.
(iii) pH of liquid R is 10. What kind of substance is R?
Related Questions
Study the figure given below and answer the questions that follow :
(i) Identify the gas Y.
(ii) What property of gas Y does this experiment demonstrate ?
(iii) Name another gas which has the same property and can be demonstrated through the experiment.
(i) Name the other ion formed when ammonia dissolves in water.
(ii) Give one test that can be used to detect the presence of the ion produced.
Give a chemical test to distinguish between the following pairs of compounds:
(i) Sodium chloride solution and sodium nitrate solution.
(ii) Hydrogen chloride gas and hydrogen sulphide gas.
(iii) Ethene gas and ethyne gas.
(iv) Calcium nitrate solution and zinc nitrate solution.
(v) Potassium carbonate and potassium sulphite.
Draw the structure of the stable positive ion formed when an acid dissolves in water.