Question

Which are content based experiment 11 chemistry practical?

Answer 1

hey buddy,
CBSE Class 11 Chemistry Practical Syllabus 2017 – 2018

Micro-chemical methods are available for several of the practical experiments.  Wherever possible, such techniques should be used.

A: Basic Laboratory Techniques

1 - Cutting glass tube and glass rod

2 - Bending a glass tube

3 - Drawing out a glass jet

4 - Boring a cork

B: Characterization and Purification of chemical Substances

1 - Determination of melting point of an organic compound.

2 - Determination of boiling point of an organic compound.

3 - Crystallization of impure sample of any one of the following: Alum, Copper Sulphate, Benzoic Acid.

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C: Experiments based on pH

(a) Any one of the following experiments:

• Determination of pH of some solutions obtained from fruit juices, solution of known and varied concentrations of acids, bases and salts using pH paper or universal indicator.

• Comparing the pH of solutions of strong and weak acids of same concentration.

• Study the pH change in the titration of a strong base using universal indicator.

(b) Study the pH change by common-ion In case of weak acids and weak bases.

D: Chemical Equilibrium

One of the following experiments:

(a) Study the shift in equilibrium between ferric ions and thiocyanate ions by increasing/decreasing the concentration of either of the ions.

(b) Study the shift in equilibrium between [Co(H2O)6]2+ and chloride ions by changing the concentration of either of the ions.

E: Quantitative Estimation

(i) Using a chemical balance.

(ii) Preparation of standard solution of Oxalic acid.

(iii) Determination of strength of a given solution of Sodium Hydroxide by titrating it against standard solution of Oxalic acid.

(iv) Preparation of standard solution of Sodium Carbonate.

(v) Determination of strength of a given solution of Hydrochloric acid by titrating it against standard Sodium Carbonate solution.

F: Qualitative Analysis

(a) Determination of one anion and one cation in a given salt

Cations  –  Pb+,  Cu2+,  As3+, Fe3+, Mn2+, Ni2+, Zn2+, Co2+, Ca2+, Sr2+, Ba2+, Mg2+, NH4+

Anions – CO32‒, S2‒, SO32‒, SO42‒, NO2‒, Cl‒, Br ‒, I‒, PO43‒, C2O42‒, CH3COO‒