Assertion : Stability of a crystal is reflected in the magnitude of its melting point.
Reason : The stability of a crystal depends upon the strength of the interparticle attractive force.
Reason : The stability of a crystal depends upon the strength of the interparticle attractive force.
- AIf both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
- BIf both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
- CIf the Assertion is correct but Reason is incorrect.
- DIf both the Assertion and Reason are incorrect.
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Which of the following is a ferroelectric compound?
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Molecules/ions and their magnetic properties are given below.
Molecule/ion Magnetic property $(i). C_6H_6$ $(1).$ Antiferromagnetic $(ii). CrO_2$ $(2).$ Ferrimagnetic $(iii). MnO$ $(3).$ Ferromagnetic $(iv). Fe_3O_4$ $(4).$ Paramagnetic $(v). Fe^{3+}$ $(5).$ Diamagnetic
The correctly matched pairs are:
| Molecule/ion | Magnetic property |
| $(i). C_6H_6$ | $(1).$ Antiferromagnetic |
| $(ii). CrO_2$ | $(2).$ Ferrimagnetic |
| $(iii). MnO$ | $(3).$ Ferromagnetic |
| $(iv). Fe_3O_4$ | $(4).$ Paramagnetic |
| $(v). Fe^{3+}$ | $(5).$ Diamagnetic |
The correctly matched pairs are:
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