2012-05-04

Chemistry MCQs Chapter 4


  Chemistry MCQs Chapter 4:

These are some more Mcqs designed especially for Entry test preparation from chapter 4 first year.

1-In the graphite lattice what is the no of nearest neighbours for each carbon atom
a-3
b-4
c-5
d-6

2-which element exist as discrete small molecules in the solid state
a-sodium
b-silicon

c- Aluminum
d-iodine

3- Vapour pressure is not affected by
a-temperature
b-surface area
c-intermolecular forces
d-nature of liquid


4-which of the following solid is an example of substance with macromolecule structure
a- AlCl3
b- MgO
c- Ice
d- SiO2

5-Following properties will decrease with increase of temperature
a- surface tension
b- viscosity
c- density
d- vapour pressure

6-In hexagonal closest packing the number of nearest neighbours for a given lattice
a-6
b-8
c-10
d-12

7-which solid does not contain covalent bond
a- copper
b- graphite
c- diamond
d- ice

8-Hydrocarbons having high molecular mass exists as
a- solid
b- liquids
c- gas
d- vapours

9-The solid particles posses only
a- translational k.e
b- vibrational k.e
c- rotational k.e
d- all

10-Glass is
a-amorphous solid
b-Vitreous solid
c-pseudo solid
d-all

11-Water is wetting liquid due to
a-adhesive forces exceed cohesive forces
b-cohesive forces exceed adhesive forces
c-both become equal
d-none

12-A pressure cooker reduces cooking time because
a-heat is uniformly distributed
b-b.p of water increases
c-a large flame is uses
d- none

13-Nature of I2 crystals is
a-metallic
b-ionic
c-covalent
d-molecular

14-The no of Chloride ions per unit cell in NaCl is
a-2
b-4
c-6
d-8

15-Which one of the following is the pseudo solid
a-glass
b-NaCl
c-both
-none

16-In gases intermolecular forces are
a-very strong
b-very weak
c-negligible
d-all

17-Which one is false for evaporation
a-surface phenomena
b-continuous
c-endothermic
d-exothermic

18-Which does not show h-bonding
a-water
b-ethyl alcohol
c-phenol
d-diethyl ether

19-H-bonding involves in
a-solubility
b-detergent
c-biological molecules
d-all

20-Conversion of vapours back into their liquid state is called
a-crystallization
b-Vapourization
c-condensation
d-distillation

21-B.p increases down the zero group due to
a-London forces
b-ion dipole forces
c-h-bonding
d-all

22-Rising of a wetting liquid in a capillary tube is due
a-surface tension
b-cohesive forces
c-adhesive forces
d-viscosity

23-Kerosene oil is used to kill mosquitoes as its surface tension
a-very strong
b-very weak
c-zero
d-none

24-As solid maybe made up of
a-atoms
b-ions
c-molecules
d-all

25-Which is true solid
a-metallic
b-amorphous
c-crystalline
d-vitreous

26-Bucky ball is an allotropic form of
a-sulfur
b-carbon
c-silica
d-tin

27-Which is liquid
a-borax
b-mercury
c-graphite
d-brass

28-Evaporation of water is possible at
a-0C
B-100C
C-98C
D-AL


29-The shape of diamond crystals is
a-hexagonal
b-cubic
c-tetragonal
d-none

30-Crystalline solids do not have
a-rigidity
b-geometry
c-compressibility
d-all

31-Which one of the following is the strongest
a- H-bonding
b-dipole-dipole
c-London forces
d-Debby forces

32-Which one of the following is not a molecular crystal
a-sugar
b-iodine
c-ice
d-graphite

33-Coordination no of Cs in CsCl is
a-2
b-4
c-6
d-8

34-In cubic and hexagonal packing no. of layers that are identical are
a-First only
b-First two
c-First three
d-All

1 comment:

  1. it wasnice mcqs but where we see ans

    ReplyDelete

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