MDCAT Chemistry Chapter 4 online mcq test with answers for chapter 4 (Chemical Bonding)

MDCAT Chemistry Chapter 4 Liquids Online Test

Sr. #	Questions	Answers Choice
1	Ice floats on water because	the hydrogen bonding in ice is stronger than that of in water empty spaces are left in ice ice has two-dimensional structure the bond length of the oxygen and hydrogen bond is different in water and ice
2	H-bonding is maximum in:	ethanol benzene diethyl ether water
3	Hydrogen bonding is not present in which of following compound?	Ammonia Ethanol Ether Water
4	The polarizabilities of elements mostly increase down the group due to the reason that	the atomic numbers increase number of protons increase number of shells increase along with increase of shielding effect the behaviour of the elements remain the same
5	Dipole-induced dipole forces are also called	dipole-dipole forces ion-dipole forces Debye forces London-dispersion forces
6	The boiling point of higher alkanes are greater than those of lower alkanes due to reason that	higher alkanes have greater number of atoms the polarizabilities of higher alkanes are greater higher alkanes have greater hydrogen bonding higher alkanes have zig-zag structures
7	Saturated hydrocarbons having carbon atoms more than 20 in a molecule are solids due to	higher densities higher molar masses the chain, are more zig-zag all are correct
8	The boiling points of the halogens	increases down the group decreases down the group remains constant can not be predicted
9	Polarizability is responsible for intermolecular forces and it	increases down the group decreases down the group almost remains the same increased along a period
10	Dipole-dipole interaction are present in the	atoms of the He gas molecules of CCl4 molecules of solid iodine molecules of :NH3
11	Strong dipole-dipole forces among the liquid molecules are responsible for	very high heat of vaporization very low heat of vaporization cannot be predicted negligible forces are these
12	The forces which are present between the ions and the water molecules are known as	dipole-induced dipole forces dipole-dipole forces ion-dipole forces London dispersion forces
13	Liquid hydrocarbon is	methane propane ethane hexane
14	The nature of crystals formed due to London forces of interaction are	molecular metallic ionic covalent
15	The nature of the attractive force in acetone and chloroform are	dipole-induced dipole forces dipole-dipole forces ion-dipole forces instantaneous forces
16	The weakest intermolecular forces present in a liquid may be	Dipole-induced dipole forces dipole-dipole forces instantaneous forces electrostatic forces between ions in a ionic solid

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