Chemistry
Identify :
(a) The flame test with a salt P gave a brick red flame. What is the cation in P.
(b) pH of liquid R is 10. What kind of substance is R ?
Practical Chemistry
1 Like
Answer
(a) Cation in P is Ca2+ (calcium ion).
(b) R is an alkaline substance.
Answered By
2 Likes
Related Questions
(a) Select the correct answer from A, B, C and D.
A. Nitroso iron (II) sulphate
B. Iron (III) chloride
C. Chromium sulphate
D. Lead (II) chloride.
(i) The compound which is responsible for the green colour formed when SO2 is bubbled through acidified potassium dichromate solution.
(ii) Compound responsible for brown ring.
Choose from the list of substances — Acetylene gas, aqua fortis, coke, brass, barium chloride, bronze, platinum.
An aqueous salt solution used for testing sulphate radical.
A student was asked to perform two experiments in the laboratory based on the instructions given:
Observe the picture given below and state one observation for each of the Experiments 1 and 2 that you would notice on mixing the given solutions.
(a) Experiment 1
(b) Experiment 2
Name the anion present in each of the following compounds.
(a) Compound A when warmed with concentrated sulphuric acid gives a gas which fumes in moist air and which gives dense white fumes with ammonia.
(b) When barium chloride solution is added to a solution of compound B, a white precipitate insoluble in dilute hydrochloric acid is formed.
(c) The action of heat on the insoluble compound C produces a gas which turns lime water turbid.
(d) Compound D when warmed with dilute sulphuric acid gives a gas which turns acidified dichromate solution green.