MCQ
Solid $NaCl$ is a bad conductor of electricity since
- AIn solid $NaCl$ there are no ions
- ✓Solid $NaCl$ is covalent
- CIn solid $NaCl$ there is no motion of ions
- DIn solid $NaCl$ there are no electrons
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$P = [Ne]\, 3s^23p^3$
$Q = [Ar]\,3d^{10}4s^24p^3$
$R = [He]\,2s^22p^5$
$S = [Ne]\,3s^1$
Incorrect statements is
Pair $-\,A:$ $(1) \,2 - $ Chloropropane $(2) \,2-$ Bromopropane
Pair $-\,B:$ $(3) \,1 -$ Bromobutane $(4)\, 2-$ Bromobutane