11th Class FSc Part 1 Chemistry Chapter Wise Online MCQ Test With Answer PDF

Chemistry Fsc Part 1 Online Test

Sr. #	Questions	Answers Choice
1	The atomis radius is of the order of	10<sup>-8</sup>cm 10<sup>8</sup>cm 10<sup>-12</sup>cm 10<sup>-10</sup>cm
2	Orbitals having same energy are called	Hybird orbitals Valence orbitals Degenerate orbitals D-orbitals
3	Quantum number value for 2p sub shell are	n = 2, I = 1 n = 1, l =1 n = 1, l = 0 n = 2, l = 0
4	In the ground state of an atom, the electron is present	In the nucleus In the second shell Nearest to the nucleus Farthest from the nucleus
5	Splitting of spectral lines when atoms are subjected to strong electric field is called	Zeeman effect Stark effect Photoelectric effect Compton effect
6	Rutherford's model of atom failed because	The atom did not have a nucleus and electrons It did not account for the attraction between protons and neutrons It did not account for the stability of the atom There is actually no space between the nucleus and the electrons
7	The wave number of the light emitted by a certain source is 2 x 10⁶m. the wavelength of this light is	500 nm 500 m 200 nm 5 x 10<sup>7</sup>m
8	The velocity of photon is	Independent of its wavelength Depends on its wavelength Equal to square of its amplitude Depends on its source
9	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
10	The number of Na, ions which surround each CI^1-ion the NaCI crystal lattice is	8 12 6 4
11	NaCI is face centered cubic structure. The Na ion at the face of the unit cell is shared by	2-unit cells 4-unit cells Only one unit cell 8-unit cells
12	How many allotropic forms are present in carbon	Two Three Four Five
13	Which one of the following substances is not amorphous	Polymer Rubber Glass AgNO<sub>3</sub>
14	Diamond is a bad conductor of electricity because	It has a tight structure It has a high density There are no free electrons present in the crystal of diamond to conduct electronics None of these
15	The molecules of CO₂in dry ice form the	Ionic crystal Covalent crystals Molecular crystals Any type of crystals
16	One of the following liquids has lowest vapour pressure at 32°C. Indicate that liquid	Ether Chloroform Ethanol Water
17	The distillation of a solution under reduced pressure is called	Fractional distillation Destructive distillation Distillation Vacuum distillation

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