Home
Class 12
CHEMISTRY
Assertion (A) : CsCl crystal, the coordi...

Assertion (A) : `CsCl` crystal, the coordination number of `Cs^(o+)` ion is `8`.
Reason (R ) : `Cl^(ɵ)` ion in `CsCl` adopt bcc type of packing,

A

If both assertion and reason are correct and reason is correct explanation for assertion

B

If both assertion and reason are correct but reason is not correct explanation for assertion

C

If assertion is correct but reason is incorrect

D

If both assertion and reason are incorrect

Text Solution

Verified by Experts

The correct Answer is:
C
Correct Reason `Cs^(+)` ions in CsCl occupy bcc type close packing
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion: In sodium chloride crystal, the co-ordination number of Na^(+) ion is six Reason: Sodium ion is smaller in size than chlorine ion

The number of Cl^(-) ions present around each Na^(+) ion in NaCl crystal lattice is-

What is the coordination number of A^(+) and B^(-) ions if the geometry of the ionic crystal (AB) is cubic?

NaCl has face-centred unit cell. In its crystal, the number of Cl^(-) ions present in contact with a Na^(+) ion is-

Assertion: In the body centred cubic structure of CsCl the arrangement of Cl^(-) ions is primitive Reason: In CsCl, the Cs^(+) ion remains at the body centred position and Cl^(-) ions at the corners.

Assertion (A): E_(Ag^(+)|Ag) increases with increase in concentration of Ag^(+) ions. Reason (R): E_(Ag^(+)|Ag) has a positive value.

Assertion :- In NaCl crystal each Na^+ ion is touching 6 Cl^(-) ions but these Cl^(-) ions do not touch each other. Reason :-The radius ratio r_(Na^+)//r_(Cl^(-)) is greater than 0.414, required for exact fitting.

For crystal sodium chloride, state (i) the type of lattice in which it crystallises. (ii) co-ordination number of each sodium ion and chloride ion in the crystal lattice. (iii) number of sodium and chloride ions present in a unit cell of sodium chloride. (iv) the structural arrangement of sodium chloride crystals.

Assertion (A) : The size of a cation is larger in TV than in OV . Reason (R ) : Cations occupy more space than anions is crystals packing.