Chemistry Mcqs Online Test Preparation With Answers

Chemistry Mcqs

Table of Contents

Chemistry Mcqs Online Test Preparation With Answers

Positive rays produce flashes on _.
A. Platinum plate
B. Gold Plate
C. Zinc sulphide plate
D. Silver plate

Which scientist named anode rays as proton?
A. Thomos
B. Stonely
C. J.Perrin
D. Rutherford

Which scientist named cathode rays as electrons _.
A. J.J. Thomson
B. Stonely
C. J Perrin
D. None of the above

e/m for positive ray is _ e/m for negative ray.
A. larger than
B. Smaller than
C. equal to
D. None of the above

Tha mass of electron is __ times less than mass of proton.
A. 1836
B. 1837
C. 1838
D. 1839

Which type of cathode is used to focus cathode rays on a platinum foil?
A. Concave cathode
B. Convex Cathode
C. Straight Cathode
D. None of the above

Free neutron decays into _.
A. Proton, electron, deuterium
B. Proton, electron, protrium
C. Proton, electron, neutrino
D. Proton, electron, deuteron

The speed of slow neutron is _ energy.
A. Below 1 ev
B. Above 1 ev
C. Below 1 Mev
D. Above 1 Mev

The speed of fast neutrons is __ energy.
A. 1.1 Mev
B. 1.2 Mev
C. 1.3 Mev
D. 1.4 Mev

Which neutrons are more effective for fission process.
A. Slow neutrons
B. Fast neutrons
C. Both a and b
D. None of the above