Foam is an example of :
A. A gas dispersed in a liquid
B. A solid dispersed in a liquid
C. A liquid dispersed in a gas
D. A liquid dispersed in a liquid
Mathematics Subject specialist Lecturer BPS-17
Mathematics Lecturer BPS-17 SPSC Paper
The presence of unsaturation can be tested with:
A. Schiff’s reagent
B. Fehling’s solution
C. Tollen’s reagent
D. Baeyer’s reagent
Which of the following transitions are NOT allowed in the normal electronic emission spectrum of an atom?
A. 2s→ 1s
B. 2p→1s
C. 3d →2p
D. 5p →3s
Ammonia Solvay process is used for the manufacture of:
A. Caustic soda
B. Washing soda
C. Potash alum
D. None of the these
Which of the following carboxylic acids is most acidic?
A. Dichloroacetic acid
B. Chloroacetic acid
C. Trichloroacetic acid
D. All have same acidic strength
The Unit of the rate constant depends upon the:
A. Activation energy of the reaction
B. Molecularity of the reaction
C. Temperature of the reaction
D. Order of the reaction
Zeolite is:
A. Hydrated sodium aluminum silicate
B. Hydrated ferric soilicate
C. Sodium tetraborate
D. Sodium hexametaphosphate: