pH value of a solution containing equal concentration of hydroxyl and hydrogen ions will be________?
0A.14
B.0
C.7
D.10
Explanation: The correct answer is 7.
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 373 of 557.
Chemical Engineering MCQs
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A.Pt (95%) & Rh (10%)
B.Fe (80%) & Ni (20%)
C.Cu (55%) & Sn (45%)
D.Cu (55%) & Ni (45%)
Explanation: The correct answer is Cu (55%) & Ni (45%).
Submitted by: Academy of Pakistan
A.Turbidity
B.Chlorinous taste
C.Dissolved oxygen
D.Colloidal impurities
Explanation: The correct answer is Dissolved oxygen.
Submitted by: Academy of Pakistan
A.The least
B.No
C.Lower
D.The largest
Explanation: The correct answer is The largest.
Submitted by: Academy of Pakistan
A.NH3
B.NaOH
C.CaCl2
D.NH4Cl
Explanation: The correct answer is CaCl2.
Submitted by: Academy of Pakistan
A.PFR followed by a CSTR followed by a PFR
B.CSTR followed by a PFR followed by a CSTR
C.PFR followed by a CSTR
D.CSTR followed by a PFR
Explanation: The correct answer is PFR followed by a CSTR followed by a PFR.
Submitted by: Academy of Pakistan
A.2.5 metres
B.0.5 metre
C.6 metres
D.10 metres
Explanation: The correct answer is 10 metres.
Submitted by: Academy of Pakistan
A.Propane
B.Methyl ethyl ketone (MEK)
C.Aqueous solution (10% water) of diethylene glycol
D.Diethylene glycol
Explanation: The correct answer is Aqueous solution (10% water) of diethylene glycol.
Submitted by: Academy of Pakistan
Occurrence of ‘case hardening’ during drying of a high moisture solid cake ________ the drying rate?
0A.Does not affect
B.Decreases
C.Exponentially increases
D.Increases
Explanation: The correct answer is Decreases.
Submitted by: Academy of Pakistan
A.Catalytic
B.None of these
C.Photochemical
D.Autocatalytic
Explanation: The correct answer is Autocatalytic.
Submitted by: Academy of Pakistan
A.Wear resistance
B.Hardenability
C.Toughness
D.Both B. & C.
Explanation: The correct answer is Both B. & C..
Submitted by: Academy of Pakistan
A.None of these
B.Increased capacity of the absorber
C.Decrease in equilibrium solubility
D.Increase in equilibrium solubility
Explanation: The correct answer is Decrease in equilibrium solubility.
Submitted by: Academy of Pakistan
A.Loss of electrons from neutral atoms produces negative ions
B.Gain of electrons by neutral atoms form cations
C.Proton to neutron ratio in a stable nucleus is 2 : 1
D.The radius of nucleus & atomic size are of the order of 10-12 cm & 10-8 cm respectively
Explanation: The correct answer is The radius of nucleus & atomic size are of the order of 10-12 cm & 10-8 cm respectively.
Submitted by: Academy of Pakistan
A.Highly
B.Mildly
C.Not
D.Least
Explanation: The correct answer is Highly.
Submitted by: Academy of Pakistan
A.Bauxite
B.Activated carbon
C.Bentonite
D.Diatomaceous earth
Explanation: The correct answer is Activated carbon.
Submitted by: Academy of Pakistan