Which of the solid does not contain covalent bond__________________?
Which of the solid does not contain covalent bond__________________?
A. copper
B. ice
C. diamond
D. graphite
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Which is not a sublime material_______________?
Which is not a sublime material_______________?A. Iodine
B. Benzoic acid
C. Ammonium chloride
D. Potash alumWhich one of the following substances conducts electricity by the movement of ions ?
Which one of the following substances conducts electricity by the movement of ions ?A. Graphite
B. Copper
C. Molten sodium chloride
D. MercuryChemical used in salt bridge is________________?
Chemical used in salt bridge is________________?A. KOH
B. KCI
C. KNO3
D. KBrWhich of the following is non spontaneous cell?
Which of the following is non spontaneous cell?A. Electrolytic cell
B. Galvanic cell
C. Daniel cell
D. NotIn diaphragm cell level of brine in anode compartment is kept slightly higher which prevents_______________?
In diaphragm cell level of brine in anode compartment is kept slightly higher which prevents_______________?A. Hydroxide ions to reach anode
B. Chlorine gas to mix
C. Cathode to decay
D. All of the aboveWhen Ammonia is used as a refrigerant in vapour compression cycle?
When Ammonia is used as a refrigerant in vapour compression cycle?A. Cu Tubing used
B. Steel tubes used
C. Both a & b
D. Material does not effect by refrigerant