C:-More ductile
D:-None of the above
Correct Answer:- Option-D

Question22:-Which among the following statements of ferroelectric material is false
?

A:-Ferroelectrics exhibit an electric dipole moment even in the absence of an
external electric field

B:-In the ferroelectric state the centre of positive charge of the crystal
coincides with the centre of negative charge

C:-The plot of polarization versus electric field for the ferroelectric state shows
a hysteresis loop

D:-Ferroelectricity usually disappears above a certain temperature called the
transition temperature

Correct Answer:- Option-B

Question23:-Which of the following statements is/are true ?

i. Super conductors have almost zero resistivity

ii. The external magnetic field has no effect on super conductors
iii. Barium ferrite can't be used for permanent magnets

A:-Only i and ii are correct

B:-Only ii is correct

C:-Only i and iii are correct

D:-Only i is correct

Correct Answer:- Option-D
Question24:-Pick out the wrong statement

A:-Piezoelectric materials produce electric charges when mechanical stress is
applied

B:-Piezoelectric materials used for converting energy are called transducer
C:-All piezoelectric materials are ferro electric
D:-Piezoelectricity is shown by materials which are asymmetric
Correct Answer:- Option-C
Question25:-IUPAC name of 9-BBN
A:-9-Borabicyclo [3.2.3] octane
B:-9-Borabicyclo [3.3.2] octane
C:-9-Borabicyclo [3.3.2] nonane
D:-9-Borabicyclo [3.3.1] nonane
Correct Answer:- Option-D

Question26:-How many stereoisomer/stereoisomers are possible for cyclopropan-1,
2-dicarboxylic acid ?

A:-1