CBSE Board Class 12 Practicals 2024 2025 Subject Chemistry | CBSE NCERT Class 12 Chemistry Practical
CBSE Chemistry Practicals 2024 – 25 Class 12 CBSE School’s Projects and Solution by Expert Teacher. CBSE Board Class 12 Practical Topics and Solution, Diagrams, Observation.
CBSE Chemistry Practicals for Class 12 Chemistry
SECTION- A
A) Surface Chemistry
1) Preparation of one lyophilic and one lyophobic sol – starch, egg albumin and gum
2) Preparation of one lyophobic sol– Ferric hydroxide
i) Separation of pigments from extracts of leaves and flowers by paper chromatography and
determination of Rf values (distance values may be provided)
B) Chromatography
Separation of pigments from extracts of leaves and flowers by paper chromatography and determination of Rf values (distance values may be provided).
C) Tests for the functional groups present in organic compounds:
(1) Alcoholic and Carboxylic groups.
(2) Aldehydic and Ketonic
D) Characteristic tests of carbohydrates and proteins in the given foodstuffs.
E) Preparation of Inorganic Compounds- Potash Alum
SECTION-B (Mandatory)
F) Quantitative analysis
(1) (a) Preparation of the standard solution of Oxalic acid of a given volume
(b) Determination of molarity of KMnO4 solution by titrating it against a standard solution of Oxalic acid.
(2) The above exercise [F 1 (a) and (b)] to be conducted using Ferrous ammonium sulphate (Mohr’s salt)
G) Qualitative analysis:
(1) Determination of one cation and one anion