Chemistry MCQS

711. When 4 gm of NaOH is dissolved in 10 litres of solutions, the pH is?
(A) 6
(B) 10
C. 12
(D) 18


712. A white salt is readily soluble in water and gives a colorless solution with a pH of about 9. The salt would be?
(A) CH4COONA
(B) CaCO3
(C) NH4NO3
D. Answer is not confirmed. Please, if you know the answer, leave it in the comment box.


713. Which process is called inversion?
(A) Hydrolysis of sucrose
(B) Hydrolysis of fats and oils
(C) Hydrolysis of cellulose
D. Hydrolysis of proteins


714. Reaction between fat and NaOH is called?
(A) Hydrogenolysis
B. Saponification
(C) Esterification
(D) Fermentation


715. Which among the following has a basic amino acid?
(A) Lysine
(B) Glutamic acid
C. Glycine
(D) None of the above


716. Amino acids are identified in paper chromatography by?
A. Ninhydrin Test
(B) Tollen’s Test
(C) Iodoform Test
(D) None of the above


717. Which among the following has the highest boiling point?
A. Propanal
(B) Methanal
(C) Propanone
(D) Ethanol


718. Which of the following is directly related to qualitative analysis?
A. Identification
B. Separation
C. Measurement
D. Calculation


719. Which of the following processes is used to separate insoluble particles from liquids?
A. Separation
B. Filtration
C. Crystallization
D. Condensation


720. The pore size of the filter paper depends upon:
A. Nature of the medium
B. Temperature of the medium
C. Size of the particles
D. Mass of the particles


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