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Chemistry 1488 MCQs [All-Courses]

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oost your exam preparation with our Chemistry MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

All Topics  1488

Which of the following cell is not rechargeable ?
A Lead storage battery
B Silver oxide cell
C Fuel cell
D Ni-Cd cell
Correct Answer: Silver oxide cell
The velocity of the photon____________________?
A Is independent of wavelength
B Depends upon source
C Depends upon its frequency
D Equals to the square of amplitude
Correct Answer: Is independent of wavelength
Stronger the oxidizing agent greater is the________________?
A Oxidation potential
B Reduction potential
C Redox potential
D emf of cell
Correct Answer: Reduction potential
The relationship between energy of a photon of light and its frequency is given by________________?
A de-Broglie duel nature of matter
B Bohrs model
C Plancks Quantum theory
D Rutherfords atomic model
Correct Answer: Plancks Quantum theory
Positive rays are produced__________________?
A By burning of gas
B By cooling of the gas
C By the bombardment of cathode rays on gas molecules
D From anode like cathode rays produced from cathode
Correct Answer: By the bombardment of cathode rays on gas molecules
The half cells are interconnected through________________?
A wire
B salt bridge
C electric circuit
D no connection exists
Correct Answer: salt bridge
Colour of fluorescene produced by cathode rays depends upon________________?
A Temperature
B Pressure
C Volume
D Composition of glass
Correct Answer: Composition of glass
Percentage of sulfuric acid in lead accumulator is__________________?
A 40%
B 25%
C 30%
D 50%
Correct Answer: 30%
The atomic number of an element having maximum number of unpaired electrons in p-subshell is_______________?
A 7
B 10
C 12
D 16
Correct Answer: 7
Voltaic cell is a_________________?
A irreversible cell
B reversible cell
C alkaline cell
D all of the above
Correct Answer: all of the above
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