Werner’s Theory NEET Questions

Inorganic Chemistry - Coordination Compounds
Werner’s Theory

Werner’s Theory MCQ Questions


13.
Which geometry was NOT proposed by Werner for transition metal complexes?
A.
Square planar
B.
Octahedral
C.
Tetrahedral
D.
Trigonal planar
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ANSWER :
D. Trigonal planar
14.
The total number of valences (primary + secondary) Werner proposed for Co in [Co(NH₃)₆]Cl₃ is:
A.
12
B.
6
C.
9
D.
3
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ANSWER :
C. 9
15.
Werner discovered which property in certain coordination compounds for the first time?
A.
Isomerism
B.
Optical activity
C.
Magnetism
D.
Color
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ANSWER :
B. Optical activity
16.
Werner's theory uses the concept of valence which is now identified as:
A.
Primary = ionic (ionizable), secondary = covalent (non-ionizable, coordinate)
B.
Both as covalent
C.
Both as ionic
D.
Primary = covalent, secondary = ionic
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ANSWER :
A. Primary = ionic (ionizable), secondary = covalent (non-ionizable, coordinate)
17.
According to Werner, the secondary valence is satisfied by:
A.
Only negative ions
B.
Either neutral molecules or negative ions
C.
Only neutral molecules
D.
Only positive ions
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ANSWER :
B. Either neutral molecules or negative ions
18.
The term 'isomers' was used by Werner to describe:
A.
Compounds having same atomic mass
B.
Same compounds in different states
C.
Compounds with different elements
D.
Compounds with same empirical formula but different properties
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ANSWER :
D. Compounds with same empirical formula but different properties
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