Chemistry Fsc Part 1 Online Test With Answers

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Chemistry Fsc Part 1 Online Test

Sr. # Questions Answers Choice
1 When 6d orbital is complete, the entering electron goes into. 7f 7s 7p 7d
2 An orbital which is spherical and symmetrical is S-Orbital P - Orbital d- Orbital f - Orbital
3 Orbitals having same energy are called. Hybrid orbitals Valance orbitals Degenerate orbitals d- orbitals
4 Maximum number of electrons in f-subshell is. 2 6 10 14
5 The electron in a subshell is filled according to formula. 2n<sup>2</sup> 2(2l+1) (2l+1) None of these
6 Quantum number values for 2p orbitals are. n = 2, 1 =1 n =1, 1 = 2 n =1, 1= 0 n = 2, 1 = 0
7 When atoms are subjected to strong electric field, splitting of spectral lines is called. Zeeman effect stark effect Photoelectric effect Compton effect
8 The wave number of the light emitted by a certain source is 2 x 106m-1The wave length of this light is. 500 nm 500 m 200 nm 600 m
9 Lyman series lies in spectral region Infrared Ultra violet Visible None of these
10 The velocity of photon is. Depends on its source Equal to square of its amplitude Depends on its wavelength Independent of its wavelength
11 In the ground state of an atom, the electrons is present. In the nucleus In the second shell Nearest to the nucleus Farthest form the nucleus
12 Bohr's model of atom is contradicted b y. Planck quantum theory Quantization of energy of electrons Heisenberg's uncertainty principle Quantization of angular momentum
13 Rutherford's model of atom failed because. The atom did not have a nucleus and electron It did not account for the attraction between protons and neutrons. It did not account for stability of the atom There is actually no space between the nucleus and the electrons.
14 When fast neutron carries nuclear reaction with nitrogen it ejects aprticles. Alpha Gamma Beta Nil
15 The e/m value for the positive rays in maximum for the gas. Helium Oxygen Nitrogen Hydrogen
16 Positive rays were discovered by. J.J.Thomson Goldstein Ruther ford William Crookes
17 The nature of positive rays depends on The nature of electrode. The nature of discharge tube The nature of residual gas All of the above
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