Positive rays give flash on________________?
A. AgNO3 plate
B. AgCl plate
C. ZnO
D. ZnS
Submitted by :- Jamil Ahmed
CHEMISTRY
Prepare for your upcoming test with a comprehensive collection of Chemistry multiple-choice questions (MCQs), ranging from basic to advanced topics. These Chemistry MCQs cover various sections of the subject, providing you with valuable practice and boosting your chances of scoring well in the Chemistry portion of the test. Whether you’re a student or a job seeker preparing for exams, these MCQs will prove beneficial for your test preparation.
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Angle of deflection was studied by________________?
A. Hitorff
B. Stoney
C. William Crookes
D. J.Perrin
Submitted by :- Jamil Ahmed
Pressure in gas discharge tube was kept________________?
A. 1 torr
B. 0.001 torr
C. 2.0 torr
D. 0.1 torr
Submitted by :- Jamil Ahmed
Which one of the following explain the shape of orbitals _________________?
A. Principal of quantum number
B. Azimuthal quantum number
C. Magnetic quantum number
D. Spin quantum number
Submitted by :- Jamil Ahmed
Splitting of spectral lines when atom is subjected to magnetic field is called _______________?
A. Zeeman effect
B. Starks effect
C. Photo electric effect
D. Compton effect
Submitted by :- Jamil Ahmed
Rutherford’s planet like structure was defective and unsatisfactory because_________________?
A. Moving e- accelerate towards the nucleus
B. Continuous spectrum
C. behavior of electron remain unexplained
D. all
Submitted by :- Jamil Ahmed
Which one is not true about cathode rays ?
A. 9.11×1-31 Kg
B. Cast shadow
C. Heat up the platinum foil
D. Cannot ionize
Submitted by :- Jamil Ahmed
When an atom absorbs energy the lines in the spectrum will appear which are_________________?
A. Brighter
B. Darker
C. Colourless
D. Hard to locate
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When electron jump into orbit 1 then series obtained is___________________?
A. Lyman
B. Paschen
C. Pfund
D. Brackett
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Spectrum is produced due to________________?
A. Different wavelength
B. Different colours
C. Different intensities
D. all have little contribution
Submitted by :- Jamil Ahmed