Chemistry MCQS with Answers Set 3

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Chemistry MCQS with Answers for NTS


The order of reactivity of halogens in aliphatic substitution reactions is
CI2 > Br2 > F2
F2 > Br2 > CI2
CI2 CI2 > Br2
Br2 > CI2 > F2

Galena is an ore of
Lead
Germanium
Gallium
Tin

Ozone is not
A powerful oxidizing agent
Paramagnetic
A bent molecule
An allotrope

Inter molecular forces in solid hydrogen are
Covalent forces
Hydrogen bonds
Van der Waal forces or London dispersion force
All of these

The rate at which a substance reacts depends on its
Atomic weight
Active mass
Equivalent weight
Molecular weight

The addition of HBr is easiest with
CH3 – CH = CH2
(CH3)2 C = CH2
CICH = CHCI
CH2 = CHCI

Potassium crystallizes with a
Cubic lattice
Triclinic
Orthogonal lattice
Ortho rhombic lattice

The principle constituent of pyrex glass is
Pb
B
Zn
CI

The ratio of close packed atoms to tetrahedral holes in cubic close packing is
1:01
1:02
1:03
2:01

Which one of the following compounds does not exist?
SbCI5
PF5
AsF5
NCI5

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