CHEMISTRY LAB ACTIVITY BOOK ,CLASS-XI-REVISED SYLLABUS CBSE
SECTION-A-:-BASIC LABORATORY TECHNIQUES
1.1-:-To cut the given glass tube ( Or glass rod) and round off its edges.
1.2-:-To bend the given glass tube, through an angle of 60 degree.
1.3-:-To draw a jet from the given glass tube.
1.4-:-To bore a cork and fit a glass tube through the bore.
SECTION-B-:-CHARACTERIZATION AND PURIFICATION OF CHEMICAL SUBSTANCES
2.1-:-To determine the melting point of the given organic compound.
2.2-:-To determine the boiling point of the given organic compound.
2.3-:-To prepare a pure sample of copper sulphate crystals from the given crude sample.
2.4-:-To prepare crystals of potash alum from the commercial sample.
2.5-:-To prepare a pure sample of benzoic acid from impure sample.
SECTION-C-:-EXPERIMENTS BASED ON pH
3.1-:-To determine pH values of the given solutions ( Washing soda solution, lemon juice, vinegar,lime water, milk, tomato juice, tap water, soil) by using indicator papers/universal indicator.
3.2-:-To compare the pH value of 0.1 N HCl, 0.1 N H2SO4, 0.1 N acetic acid and 0.1 N oxalic acid.
3.3-:-To study the pH change in the titration of a strong base (0.1 N NaoH) using universal indicator.