Basic Chemistry MCQs

GURU MCQs provides MCQs of Chemistry from Basic to Advance, so that you can prepare accordingly. MCQs of Chemistry section covers important topics of chemistry. Most repeated Chemistry MCQs frequently encountered in Inspector, ASI, Sub-inspector, Constable, FPSC, PPSC, ETEA, FIA, Police, Army, Navy, Airforce, IB, MOFA, ASF, LHC, Educators, and various other competitive exams, as well as government and private job assessments. Chemistry most repeated MCQs include Basic chemistry MCQs, Chemical Bond MCQs, Gases MCQs, Liquids and Solids MCQs, Hydrocarbons MCQs, Polymerization MCQs, Rates of Reactions MCQs, Transition Elements MCQs, Organic Chemistry MCQs, Electrons in Atoms MCQs, Moles and Equations MCQs, et

71. A malleable solid is one which can be_________________?

A. Converted into wires
B. Converted into thin sheets
C. Melted easily
D. All of the above

72. Crystalline solids can be identified easily from their ___________________?

A. Sharp melting point
B. Definite geometry
C. Transition temperature
D. Colour

73. The viscosity of solids is________________?

A. Infinite
B. Negligible
C. Medium
D. No concept of viscosity in solid

74. Which solids are called true solids _______________?

A. Metallic
B. Amorphous
C. Crystalline
D. Vitreous

75. The number amino acid units for each turn of helix on average are____________________?

A. 21
B. 23
C. 25
D. 27

76. If a physical and chemical change takes place at a constant pressure then the heat change during the process is called__________________?

A. Heat of transition
B. Heat of fusion
C. Enthalpy change
D. All of above

77. The amount of heat absorbed when one mole of a liquid is changed into gas at its boiling point is_____________________?

A. Molar heat of sublimation
B. Molar heat of fusion
C. Molar heat of vapourization
D. Latent heat of that liquid

78. All of the following were theorized by Bohr in his description of the atom except__________________?

A. Angular momentum of electrons in multiples of h/2?
B. Electrons revolve in discrete circular orbits
C. Energy of each electron is directly proportional to n2
D. Electrons radiate energy continuously in a given orbit.

79. The magnetic quantum number (QN) has its values determined directly by the value of_______________?

A. Principal (QN)
B. Azimuthal (QN)
C. Spin (QN)
D. Both A & B

80. The maximum number of electron in a sub shell with ? = 3fs______________?

A. 6
B. 10
C. 14
D. 18

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