Laws of Chemical Combination NDA Questions

NDA Chemistry

Laws of Chemical Combination MCQ Questions


7.
_______________may be called the oxidation half-cell.
A.
Copper Electrode
B.
Electron Reaction
C.
Chemical Energy
D.
Zinc Electrode
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ANSWER :
D. Zinc Electrode
8.
Measuring the resistance of an ionic solution cannot be connected to the bridge like ____________ or other solid conductors.
A.
Metallic Wire
B.
Connecting Metal
C.
Metallic
D.
Materials
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ANSWER :
A. Metallic Wire
9.
What is the frequency range of the Wheatstone bridge that is fed by an oscillator O, a source of a.c. Power in the audio?
A.
325 to 7800 per second
B.
550 to 5000 per second
C.
10 to 100 per second
D.
890 to 9000 per second
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ANSWER :
B. 550 to 5000 per second
10.
What is the symbol of Molar Conductivity ?
A.
ρ (Greek, rho)
B.
Ohm (℩)
C.
Λm (Greek, lambda)
D.
Îș (Greek, kappa)
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ANSWER :
C. Λm (Greek, lambda)
11.
A galvanic cell is an electrochemical cell that converts the _____________ of a spontaneous redox reaction into electrical energy.
A.
Voltaic Cell
B.
Electrolytic Cell
C.
Energy Cell
D.
Chemical Energy
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ANSWER :
D. Chemical Energy
12.
Electronic conductance depends on the number of valence electrons per
A.
Atom
B.
Insulators
C.
Nature and Structure
D.
Movement of Electrons
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ANSWER :
A. Atom