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

51. The phenomenon in which a compound exists in two or more crystalline forms is called ________________?

A. Isomorphism
B. Polymorphism
C. Anisotropy
D. Allotropy

52. Bucky balls is an allotropic from of__________________?

A. Sulphur
B. Carbon
C. Silica
D. Tin

53. Isomorphic substances have _______________?

A. Same physical and chemical properties
B. Same physical and different chemical properties
C. Different physical and same chemical properties
D. Different physical and chemical properties

54. The pressure during the molar heat of fusion is kept________________?

A. 0 atmosphere
B. one atmosphere
C. 2 atmosphere
D. 10 atmosphere

55. All the enthalpy changes are________________?

A. Negative
B. Positive
C. May or may not be A or B
D. none

56. Which has strongest bonding in the solid state ?

A. Hydrogen Chloride (HCI)
B. Chlorine (Cl2)
C. Xenon(Xe)
D. Sodium Chloride (NaCI)

57. When the atoms of third layer are arranged in such a way that they directly lie above the atoms of first layer then this arrangement is called_________________?

A. ABAB (hexagonal)
B. ABCABC (Cubic)
C. Orthor hombic
D. Rhombohedral

58. Which one is false for evaporation ?

A. Surface phenomenon
B. Continuous
C. Exothermic
D. Cause cooling

59. Which one of the following does not show hydrogen bonding?

A. Water
B. Ethyl alcohol
C. Phenol
D. Diethyl ether

60. Which one is a conductor but is not malleable ?

A. Iron
B. Graphite
C. Silver
D. Platinum

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