Compounds of Xenon

Q. An element has face-centred cubic (fcc) structure with a cell edge of a. The distance between the centres of two nearest tetrahedral voids in the lattice is:

1. $\frac{\sqrt{3}a}{2}$
2. $a$
3. $\frac{a}{2}$
4. $2a$

Q. The number of octahedral void(s) per atom present in a face - centered cubic unit cell is:
[1 mark]

1. $1$
2. $3$
3. $2$
4. $4$

Q.

What Is Isotones , Isodaiphers , Isoelectronic And Isosters

Q. What is the correct structure of $Xe{F}_4?$

1. 
2. 
3. 
4. 

Q.

Why Xenon Is Called Stranger Gas?

Q. Which of the following is/are correct for a diamond structure?

1. There are 6 atoms per unit cell.
2. Carbon particles occupy half of octahedral voids and occupy hcp sites
3. Carbon particles occupy half of tetrahedral voids and occupy fcc sites
4. There are 8 atoms per unit cell.

Q. In a crystalline solid, atoms of X form fcc packing and the atoms of Y occupy all the octahedral voids. If all the atoms along one body diagonal are removed , then the simplest formula of the crystalline solid will be:

1. $XY$
2. $X_4{Y}_3$
3. $X_5{Y}_4$
4. $X_4{Y}_5$

Q. Which of the following hydrolysis product is not common in hydrolysis of $Xe{F}_2\text{and}Xe{F}_4$ respectively?

1. $HF$
2. $O_2$
3. $Xe$
4. $Xe{O}_3$

Q. In spinel structure, oxides ions form fcc lattice, whereas $\frac{1}{8}$th of tetrahedral holes are occupied by cations $A^{2+}$ and $\frac{1}{2}$ of octahedral holes are occupied by cations $B^{3+}$ ions. The general formula of the compound having spinel structure is

1. $A{B}_2{O}_4$
2. $A_2{B}_2{O}_4$
3. $A_2{B}_{6}O$
4. $A_4{B}_{3}O$

Q. Position of octahedral voids in fcc structure is/are:

1. Edge centres of unit cell
   
2. Body centres of unit cell
3. Corners of unit cell
   
4. Face-centres of unit cell

Q. $Sb{F}_5$ reacts with $Xe{F}_4$ to form an adduct. The shapes of cation and anion in the adduct are respectively:

1. square planar, trigonal bipyramidal
2. T-shaped, octahedral
3. square pyramidal, octahedral
4. square planar, octahedral

Q. Three lines are drawn from a single corner of a FCC unit cell to meet the other corner such that they are found to pass through exactly only 1 octahedral void, no voids of any type and exactly 2 tetrahedral voids with 1 octahedral void. Identify the line in the same order.

1. Edge, Face diagonal, Body diagonal
2. Face diagonal, Edge, Body diagonal
3. Body diagonal, Face diagonal, Edge
4. Edge, Body diagonal, Face diagonal

Q. Which of the following hydrolysis product(s) are common in hydrolysis of $Xe{F}_2\text{and}Xe{F}_4$ respectively?

1. $HF$
2. $O_2$
3. $Xe$
4. $Xe{O}_3$

Q. A compound forms cubic close packed structure. What is the total number of tetrahedral voids in $1.2mol$ of it?

1. $10.83\times {10}^{22}$
2. $21.68\times {10}^{23}$
3. $7.22\times {10}^{23}$
4. $14.45\times {10}^{23}$

Q. A solid crystal is composed of $X,Y$ and $Z$ atoms. $Z$ atoms (radius $200\text{pm}$) form cubic close packed structure, whereas $X$ atoms (radius $50\text{pm}$) and $Y$ atoms (radius $100\text{pm}$) occupy the respective voids. Assume all the voids to be occupied. If all the atoms along one body diagonal are removed, then the formula of the compound becomes:

1. $X_8{Y}_4{Z}_5$
2. $X_{4}Y{Z}_2$
3. $X_{2}YZ$
4. $X_6{Y}_3{Z}_4$

Q. The noble gas which forms the maximum number of compounds is.

1. Argon
2. Xenon
3. Krypton
4. Neon

Q. Choose the correct statement(s) regarding voids in hcp arrangemnt.

1. It has 12 tetrahedral voids per unit cell
2. Number of tetrahedral voids is same as octahedral voids.
3. It has 8 octahedral voids per unit cell
4. Number of particles per unit cell is 6

Q. Position of octahedral voids in fcc structure is:

1. Body centres of unit cell
2. Edge centres of unit cell
3. Both (a) and (b)
4. Face-centres of unit cell

Q. If the unit cell of a mineral has cubic close packed (ccp) array of oxygen atoms with $m$ fraction of octahedral holes occupied by aluminium ions and $n$ fraction of tetrahedral holes occupied by magnesium ions. $m$ and $n$ respectively are:

1. $\frac{1}{2},\frac{1}{8}$

2. $1,\frac{1}{4}$

3. $\frac{1}{2},\frac{1}{2}$

4. $\frac{1}{4},\frac{1}{8}$

Q. What is the correct structure of $Xe{F}_4?$

1. 
2. 
3. 
4. 

Q. Match the xenon compounds with their structures:

1. Pyramidal
2. Square planar
3. Square pyramidal
4. Distorted octahedral

Q. Extra very pure $N_2$ can be obtained by heating:

1. $Ba(N_3{)}_2$
2. $(N{H}_4{)}_{2}C{r}_2{O}_7$
3. $N{H}_3$ with $CuO$
4. $N{H}_{4}N{O}_3$

Q. A compond is formed by cation $C$ and anion $A$. The anions form hexagonal close packed (hcp) lattice and the cations occupy $75\%$ of octahedral voids. The formula of the compound is:

1. $C_4{A}_3$
2. $C_2{A}_3$
3. $C_3{A}_2$
4. $C_3{A}_4$

Q. Match List $I$ with List $II$ and select the correct answer using the codes given below the list

$ListI$	$ListII$
$Xe{F}_4$	Distorted octahedral
$Xe{F}_6$	Tetrahedral
$Xe{O}_3$	Square planar
$Xe{O}_4$	Pyramidal

1. A$-$3, B$-$1, C$-$4, D$-$2
2. A$-$1, B$-$2, C$-$3, D$-$4
3. A$-$1, B$-$3, C$-$2, D$-$4
4. A$-$2, B$-$4, C$-$1, D$-$3

Q. Which of the following is/are correct for a diamond structure?

1. There are 6 atoms per unit cell.
2. Carbon particles occupy half of octahedral voids and occupy hcp sites
3. Carbon particles occupy half of tetrahedral voids and occupy fcc sites
4. There are 4 atoms per unit cell

Q. Geometrical shape of $Xe{O}_3$

1. Planar triangular
2. Trigonal pyramidal
3. Square planar
4. Tetrahedral

Q. Which of the following compounds reacts with sodium to liberate hydrogen gas?

1. Ethane
2. Propylene
3. Acetylene
4. Benzene

Q. $Ca{C}_2$ and $H_{2}O$ react to produce:

1. $C_2{H}_6$
2. $C{H}_4$
3. $C_2{H}_4$
4. $C_2{H}_2$

Q. Which of the following reactions does not give a green coloured compound of $Mn$?

1. $KMn{O}_4+KOH\to$
2. $KMn{O}_4+H_{2}S{O}_4\stackrel{\Delta }{\to }$
3. $Mn{O}_2+KOH+O_2\to$
4. $KMn{O}_{4}KI\to$

Q. Position of tetrahedral voids in fcc structure is:

1. Edge centres of unit cell
2. Two tetrahedral void on each body diagonal
3. Face centres of unit cell
4. Both (a) and (c)