Chemistry
Identify the acid in each case:
(a) The acid formed when sulphur reacts with concentrated nitric acid.
(b) An acid, which on adding to lead nitrate solution produces a white precipitate which is soluble on heating.
(c) The acid formed when potassium nitrate reacts with a least volatile acid.
Related Questions
Distinguish between the following as directed:
(a) Sodium sulphite solution and sodium sulphate solution. [using dilute H2SO4]
(b) Lead salt solution and zinc salt solution. [using NH4OH solution in excess]
Match column A with column B:
Name (A) Functional group (B) 1. Aldehyde (a) —OH 2. Carboxylic acids (b) —CHO 3. Alcohol (c) —COOH Study the diagram, which shows the Brown Ring Test and answer the questions given below:
![Study the diagram, which shows the Brown Ring Test and answer the questions. Which ion is determined by Brown Ring Test? Why is freshly prepared iron[II] sulphate used in the test? Name the substance Z. ICSE 2022 Chemistry Solved Question Paper.](https://cdn1.knowledgeboat.com/img/abp10/7/q5iv-icse-2022-chemistry-question-paper-solved-278x293.png)
(a) Which ion is determined by Brown Ring Test?
(b) Why is freshly prepared iron[II] sulphate used in the test?
(c) Name the substance Z.
Give one word for the following statements:
(a) The compounds of various metals found in nature with earthly impurities.
(b) A homogeneous mixture of two or more metals or a metal and a non-metal in specific ratios.