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 above
Submitted by :- Jamil Ahmed
CHEMISTRY
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The deliquescence is a property in which a solid____________________?
A. Absorbs moisture and remains solid
B. Absorbs moisture and turns to liquid form
C. Loses water of crystallization
D. Increases the number of water of crystallization
Submitted by :- Jamil Ahmed
Which one of the following gives white precipitate with aqueous solution of BaCl2?
a. NaHCO3
B. NaNO3
C. Na2CO3
D. Na2CrO4
Submitted by :- Jamil Ahmed
Gypsum is applied to the soil as a source of________________?
A. Ca and P
B. S and P
C. Ca and S
D. we could not apply
Submitted by :- Jamil Ahmed
In diaphragm cell hydrogen is discharged by the reduction of__________________?
Which one of the following carbonate is water insoluble ?
A. Na2CO3
B. K2CO3
C. (NH4)2CO3
D. CaCO3
Submitted by :- Jamil Ahmed
Which one of the following substances conducts electricity by the movement of ions ?
A. Graphite
B. Copper
C. Molten sodium chloride
D. Mercury
Submitted by :- Jamil Ahmed
The ore CaSO4.H2O has the general name_______________?
Which of the following sulphates is not soluble in water ?
A. Sodium sulphate
B. Potassium sulphate
C. Zinc sulphate
D. Barium sulphate
Submitted by :- Jamil Ahmed
Which element is necessary for normal leaf development ?
A. Si
B. Ba
C. Mg
D. Ca
Submitted by :- Jamil Ahmed