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Basic Electrochemistry MCQs Online Quiz Test
Q.1: Which of the following reaction is not shown by ketones ?
- reaction with HCN
- reaction with NaHSO3
- reaction with 2 4 dinitrophenyl hydrazine
- reaction with Fehling solution
Q.2: Which of the following substances does not give iodoform test ?
- ethyl alcohol
- methyl alcohol
Q.3: Crystallization does not involve——–?
Q.4: In CCI4 I2 shows——–?
- Red colour
- Purple colour
- Blue colour
- Yellow colour
Q.5: Direct conversion of solids into vapours is called ———-?
- Solvent extraction
Q.6: Without suction pump filtration is ———?
- Fast process
- Rapid process
- Slow process
- All are possible
Q.7: The use of CaCl2 and PCl5 in the process of crystallization is as a———-?
- oxidizing agent
- reducing agent
- drying agent
- colouring agent
Q.8: In solvent extraction ether is used to separate products of organic synthesis from——–?
- hydrochloric acid
Q.9: In crystallization if the solvent is inflammable then direct heating is——–?
- depends on temperature
- crystallization does not involve heating
Q.10: Rate of filtration can be increased by applying gentle suction——-?
- Gooch crucible
- Filter paper
- Sintered crucible
- All of the above