On adding 2mL acetic acid to 2mL of water in a test tube, it was observed that
a clear and transparent solution is formed.
a white precipitate is formed almost immediately.
two separate layers were formed.
two separate layers were formed.
A.
a clear and transparent solution is formed.
On adding acetic acid to sodium hydrogen carbonate in a test tube, a student observes.
no reaction
a colourless gas with pungent
bubbles of a colourless and odourless gas
bubbles of a colourless and odourless gas
C.
bubbles of a colourless and odourless gas
Mustard oil and calcium hydroxide
Castor oil and calcium hydroxide
Turpentine oil and sodium hydroxide
Turpentine oil and sodium hydroxide
D.
Turpentine oil and sodium hydroxide
A student took four test tubes P, Q, R and S and filled about 8 mL of distilled water in each. After that he dissolved an equal amount of Na2SO4 in P, K2SO4 in Q, CaSO4 in R and MgSO4 in S. On adding an equal amount of soap solution and shaking each test tube well, a good amount of lather will be obtained in the test tubes,
P and Q
P and R
P, Q and S
P, Q and S
A.
P and Q