sp Hybridisation

Q. Assertion: The carbon in ethyne is more eletronegative compared to ethene
Reason: More is the s-character more electronegative is the atom

1. Both assertion and reason are correct but reason is not the correct explanation of the assertion
2. Both assertion and reason are correct and reason is also the correct explanation of the assertion
3. Assertion is correct but the reason is wrong
4. Assertion is wrong but the reason is correct

Q.

What are hybridisation states of each carbon atom in the following compounds?

$C{H}_2=C=O$

$C{H}_{3}CH=C{H}_2$

$(C{H}_3{)}_{2}CO$

$C{H}_2=CHCN$,

$C_6{H}_6$

Q. The correct geometry and hybridisation for $Xe{F}_4$ is:

1. Octahedral, $s{p}^3{d}^2$
2. Trigonal bipyramidal, $s{p}^{3}d$
3. Planar triangle, $s{p}^3{d}^3$
4. Square planar, $s{p}^3{d}^2$

Q. Which of the following is often termed as diagonal hybridisation?

1. $sp$
2. $s{p}^2$
3. $s{p}^3$
4. None of these

Q. The species in which N atom is in a state of sp hybridization is:

1. $N{O}_2^{-}$
2. $N{O}_3^{-}$
3. $N{O}_2$
4. $N{O}_2^{+}$

Q. Specify the hybridization of the central atom in the following species respectively $(N_3^{-},NOCl,N_{2}O)$:

1. $sp,s{p}^2,sp$
2. $s{p}^2,sp,sp$
3. $s{p}^2,s{p}^2,sp$
4. $sp,sp,s{p}^3$

Q. The correct statement for the molecule $Cs{I}_3$ is:

1. It contains $C{s}^{3+}$ and $I^{-}$ ions
2. It contains $C{s}^{+}$ and $I_3^{-}$ ions
3. It contains $C{s}^{+}$, $I^{-}$ and lattice $I_2$ molecule
4. It is a covalent molecule

Q. In $Xe{F}_2,Xe{F}_4\text{and}Xe{F}_6$, the number of lone pairs on $Xe$ is respectively:

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

Q.

How do you convert a Kekule structure from Lewis Diagram form to condensed and Line-angle structure?

Q. The hybridization of any of the Carbon atoms in C2H2 is .

1. $sp$
2. ${sp}^2$
3. ${sp}^3$

Q. The number of electrons pairs present in the valence shell of central atom in SF₆ is

1. 4
2. 6
3. 8
4. 7

Q.

Compound formed by $s{p}^3$ dhybridization will have structure

1. Planar

2. Pyramidal

3. Angular

4. Trigonal bipyramidal

Q.

Which of the unsaturated and saturated Carbon compounds are more reactive?

Q. Which of the following is often termed as diagonal hybridisation?

1. $sp$
2. $s{p}^2$
3. $s{p}^3$
4. None of these

Q. Identify the correct geometry and magnetic behaviour of the complex from the configuration shown.

1. Square planar, diamagnetic
2. square planar paramagnetic
3. Tetrahedral, diamagnetic
4. Tetrahedral paramagnetic

Q. On hybridization of one s and one p orbitals we get Two mutually perpendicular hybrid orbitals Two equivalent hybrid orbitals at 180degree Four hybrid orbitals directed tetrahedral Three hybrid orbitals in the plane

Q. How to find that Which hybrid orbital has 20%d character?

Q. Assertion :STATEMENT 1: Silicon exists only in diamond-like structure while carbon exists both in diamond and graphite forms. Reason: STATEMENT 2: Carbon can show pronounced $p\pi -p\pi$ bonding while silicon shows negligible extent of $p\pi -p\pi$ bonding.

1. Statement 1 is True, statement 2 is True; statement 2 is a correct explanation for
   statement 1.
2. Statement 1 is True, statement 2 is True; statement 2 is not a correct explanation for
   statement 1.
3. Statement 1 is True, statement 2 is False.
4. Statement 1 is False, statement 2 is True.

Q. Match the column:

Column I	Column II
(a) $N{H}_2^{-}$	(p) $\mu =0$
(b) $N{H}_4^{+}$	(q) Planar
(c) $I_3^{-}$	(r) $d_{x^2-y^2}$ is involved in hybridization
(d) $PC{l}_6^{-}$	(s) $d_{z^2}$ is involved in hybridization
(e) $PC{l}_2^{+}$	(t) Bent structure

1. $\left(a\right)q,t;\left(b\right)p;\left(c\right)p,q,s;\left(d\right)p,r,s;\left(e\right)q,t$
2. $\left(a\right)r;\left(b\right)p;\left(c\right)p,q,s;\left(d\right)p,r,s;\left(e\right)q,t$
3. $\left(a\right)q,t;\left(b\right)p;\left(c\right)t;\left(d\right)p,r,s;\left(e\right)r,t$
4. $\left(a\right)r,s;\left(b\right)p;\left(c\right)p,t,s;\left(d\right)p,r,s;\left(e\right)q,t$

Q. The hybridization of any of the Carbon atoms in C2H2 is .

1. $sp$
2. ${sp}^2$
3. ${sp}^3$

Q.

What are hybridisation states of each carbon atom in the following compounds?

CH₂=C=O, CH₃CH=CH₂, (CH₃)₂CO, CH₂=CHCN, C₆H₆

Q.

Consider the following statements

$S_1$ : Generally square planar complexes show geometrical isomerism but do not exhibit optical isomerism because they do not possess plane of symmetry

$S_2:{\Delta }_t=\frac{4}{9}{\Delta }_o$

$S_3$ : In octahedral complexes each electron entering the $t_{2g}$ orbtials stabilizes the complex ion by $0.4{\Delta }_o$ and each electron entering the $e_g$ orbital destabilizes the complex by an amount of $0.6{\Delta }_o$

1. $S_1$ and $S_3$ are correct

2. $S_2$ and $S_3$ are correct

3. $S_1$ is incorrect.

4. $S_2$ and $S_3$ are incorrect.

Q. In the molecule $C{H}_{3}C\equiv C-CH=C{H}_2$, the maximum number of carbon atoms arranged linearly is:

1. 5
2. 4
3. 2
4. 3

Q. Defines hybridization.Determine the hybridization in following molecules:
${PCl}_5{NH}_4^{+1}$

Q. In $B{X}_3$, B is

1. 

2. 
3. 

4. 

Q.

Four sets of carbanions (a-d) with the factors responsible for their stability to a certain extent are given. Identity the carbanion with wrong explanation of stability.

1. $C{L}_3\stackrel{\ominus }{C}::p\pi -d\pi$ bond

2. 

3. $:C{H}_3-C\equiv \stackrel{\ominus }{\stackrel{..}{C}}$:sp Hybrid Orbitals

4. $H_2\stackrel{\ominus }{C}-N{O}_2$: Nucleophilic nature of $N{O}_2$group

Q. The hybridization of any of the Carbon atoms in C2H2 is .

1. $sp$
2. ${sp}^2$
3. ${sp}^3$

Q. Find the pair of species having the same shape but different hybridization

1. $S{O}_3,C{O}_3^{2-}$
2. $N{O}_2^{-},Cl{O}_2^{-}$
3. $BeC{l}_2,HCN$
4. $Xe{F}_2,SnC{l}_2$

Q. What is $sp$ hybridization?

Q. The number of chain isomers possible for hydrocarbon $C_5{H}_{12}$ is :

1. 3
2. 5
3. 4
4. 6