46295 + Interview Questions in Chemistry

1.	CD_2=CH-CH_2Br is subjected to S_N1 and S_N2 reactions separately,which of the following statement is correct? (1) Both S_N1 and S_N2 give two products (2) Both S_{N }1 and SN2 give only one product (3) S_{N }1 gives two products but S_N2 gives only one product (4) S_N1 gives one product but S_N2 gives two produ
Answer» CD_2=CH-CH_2Br is subjected to S_N1 and S_N2 reactions separately,which of the following statement is correct? (1) Both S_N1 and S_N2 give two products (2) Both S_{N }1 and SN2 give only one product (3) S_{N }1 gives two products but S_N2 gives only one product (4) S_N1 gives one product but S_N2 gives two produ

Discussion

2.	23.The CNC bond angle in CH3NCS is
Answer» 23.The CNC bond angle in CH3NCS is

Discussion

3.	2 Faraday of electricity is passed through a solution of CuSO4 . The mass of copper deposited at the cathode is:
Answer» $2 F a r a d a y$ of electricity is passed through a solution of $C u S O_{4}$ . The mass of copper deposited at the cathode is:

Discussion

4.	What is the boiling point of 0.1 molal aquesous solution of KCl(Kb=0.52 K molal^-1)?
Answer» What is the boiling point of 0.1 molal aquesous solution of KCl(Kb=0.52 K molal^-1)?

Discussion

5.	Write the number 123543 in scientific notation.
Answer» Write the number 123543 in scientific notation.

Discussion

6.	If at 298 K the bond energies of C - H, C - C, C=C and H - H bonds are respectively 414, 347, 615 and 435 kJ mol−1, the value of enthalpy change for the reactionCH2=CH2(g)+H2(g)→CH3−CH3 is:
Answer» If at 298 K the bond energies of C - H, C - C, C=C and H - H bonds are respectively 414, 347, 615 and 435 kJ $m o l^{- 1}$ , the value of enthalpy change for the reaction $C H_{2} = C H_{2} (g) + H_{2} (g) \to C H_{3} - C H_{3}$ is:

Discussion

7.	Consider the following structures and calculate value of (P2−Q2)where P = Total number of correct structure representationQ = Total number of incorrect structure representation
Answer» Consider the following structures and calculate value of ( $P^{2} - Q^{2}$ ) where P = Total number of correct structure representation Q = Total number of incorrect structure representation

Discussion

8.	What is normal force? What is its formula?
Answer» What is normal force? What is its formula?

Discussion

9.	Arrange following complex ions in increasing order of crystal field splitting energy [Cr(Cl)6]3–, [Cr(CN)6]3–, [Cr(NH3)6]3+
Answer» Arrange following complex ions in increasing order of crystal field splitting energy [Cr(Cl)6]3–, [Cr(CN)6]3–, [Cr(NH3)6]3+

Discussion

10.	In the complex ion ML6^+n, M^n+ has five d-electrons and L is weak field ligand. According to crystal field theory, the magnetic properties of the complex ion corresponds to how many unpaired electrons- (1) 0 (2) 5 (3) 2 (4) 3
Answer» In the complex ion ML6^+n, M^n+ has five d-electrons and L is weak field ligand. According to crystal field theory, the magnetic properties of the complex ion corresponds to how many unpaired electrons- (1) 0 (2) 5 (3) 2 (4) 3

Discussion

11.	Calculate the change in entropy for the following reaction 2CO(g)+O2(g)→2CO2(g).Given S0CO2=213.6JK−1mol−1,S0CO=297.6JK−1mol−1 respectively.
Answer» Calculate the change in entropy for the following reaction $2 C O (g) + O_{2} (g) \to 2 C O_{2} (g)$ . Given $S_{C O_{2}}^{0} = 213.6 J K^{- 1} m o l^{- 1}$ , $S_{C O}^{0} = 297.6 J K^{- 1} m o l^{- 1}$ respectively.

Discussion

12.	Ferrocene is an example of:
Answer» Ferrocene is an example of:

Discussion

13.	According to Bohr's theory, which of the following correctly represents the variation of energy and radius of an electron in nth orbit of H-atom?
Answer» According to Bohr's theory, which of the following correctly represents the variation of energy and radius of an electron in $n^{t h}$ orbit of H-atom?

Discussion

14.	write the dash structural formulae of (CH3)3 C CH2CH3
Answer» write the dash structural formulae of (CH3)3 C CH2CH3

Discussion

15.	Which of the following gives effervescences of CO2 with NaHCO3 solution ?
Answer» Which of the following gives effervescences of $C O_{2}$ with $N a H C O_{3}$ solution ?

Discussion

16.	The first ionizationconstant of H2S is 9.1 × 10–8.Calculate the concentration of HS– ion in its 0.1 Msolution. How will this concentration be affected if the solution is0.1 M in HCl also? If the second dissociation constant of H2Sis 1.2 × 10–13, calculate the concentration ofS2– under both conditions.
Answer» The first ionization constant of H₂S is 9.1 × 10^–8. Calculate the concentration of HS^– ion in its 0.1 M solution. How will this concentration be affected if the solution is 0.1 M in HCl also? If the second dissociation constant of H₂S is 1.2 × 10^–13, calculate the concentration of S^2–under both conditions.

Discussion

17.	86.Why gain or loss of electrons cannot take place between similar atoms?
Answer» 86.Why gain or loss of electrons cannot take place between similar atoms?

Discussion

18.	The oxidation state of Fe in FeSO4.(NH4)2SO4.6H2O is
Answer» The oxidation state of $F e$ in $F e S O_{4}$ . $(N H_{4})_{2} S O_{4}$ . $6 H_{2} O$ is

Discussion

19.	At473 K, equilibrium constant Kcfordecomposition of phosphorus pentachloride, PCl5is 8.3 ×10-3.If decomposition is depicted as,rH°=124.0 kJmol–1a) Write an expression for Kcforthe reaction.b) What is the value of Kcforthe reverse reaction at the same temperature?c) Whatwould be the effect on Kcif (i) more PCl5is added (ii) pressure is increased? (iii) The temperature isincreased?
Answer» At 473 K, equilibrium constant K_cfor decomposition of phosphorus pentachloride, PCl₅ is 8.3 ×10^-3. If decomposition is depicted as, _rH° = 124.0 kJmol^–1 a) Write an expression for K_cfor the reaction. b) What is the value of K_cfor the reverse reaction at the same temperature? c) What would be the effect on K_c if (i) more PCl₅ is added (ii) pressure is increased? (iii) The temperature is increased?

19.

At473 K, equilibrium constant Kcfordecomposition of phosphorus pentachloride, PCl5is 8.3 ×10-3.If decomposition is depicted as,rH°=124.0 kJmol–1a) Write an expression for Kcforthe reaction.b) What is the value of Kcforthe reverse reaction at the same temperature?c) Whatwould be the effect on Kcif (i) more PCl5is added (ii) pressure is increased? (iii) The temperature isincreased?

Answer»

At
473 K, equilibrium constant K_cfor
decomposition of phosphorus pentachloride, PCl₅
is 8.3 ×10^-3.
If decomposition is depicted as,

_rH°
=
124.0 kJmol^–1

a)
Write an expression for K_cfor
the reaction.

b)
What is the value of K_cfor
the reverse reaction at the same temperature?

c) What
would be the effect on K_c
if (i) more PCl₅
is added (ii) pressure is increased? (iii) The temperature is
increased?

Discussion

20.	0.2 mole of sodium acetate is added to a 1 L, 0.2 Maqueous solution of acetic acid. The ratio of initialto final \lbrack H+\rbrack is (K of acetic acid = 1.8 x 10-4)
Answer» 0.2 mole of sodium acetate is added to a 1 L, 0.2 Maqueous solution of acetic acid. The ratio of initialto final \lbrack H+\rbrack is (K of acetic acid = 1.8 x 10-4)

Discussion

21.	It takes 10 minutes for completion of 50% of an unknown order reaction while it takes 50 minutes for 75% completion for the same reaction hence the order of reaction will be
Answer» It takes 10 minutes for completion of 50% of an unknown order reaction while it takes 50 minutes for 75% completion for the same reaction hence the order of reaction will be

Discussion

22.	Heavy water (D2O) is
Answer» Heavy water ( $D_{2} O$ ) is

22.

Heavy water (D2O) is

Answer»

Heavy water ( $D_{2} O$ ) is

Discussion

23.	A gaseous organic compound has a density of 2.5 kg/m3 at 2 atm and 273∘C. The molecular formula of the compound can be:
Answer» A gaseous organic compound has a density of $2.5 k g / m^{3}$ at 2 atm and $273^{\circ} C$ . The molecular formula of the compound can be:

Discussion

24.	When a solution of specific conductance 1.342 Sm−1 was placed in a conductivity cell with parallel electrodes, the resistance was found to be 170.5 ohm. The area of the electrodes is 1.86×10−4 m2 . Calculate the distance between the electrodes.
Answer» When a solution of specific conductance $1.342 {Sm}^{- 1}$ was placed in a conductivity cell with parallel electrodes, the resistance was found to be $170.5 ohm$ . The area of the electrodes is $1.86 \times 10^{- 4} m^{2}$ . Calculate the distance between the electrodes.

Discussion

25.	Identify Y in the following reactions:
Answer» Identify Y in the following reactions:

Discussion

26.	what is the mechanism of isomerization reaction of alkynes?
Answer» what is the mechanism of isomerization reaction of alkynes?

Discussion

27.	normality
Answer» normality

Discussion

28.	What type of lattice do the alkali metal hydrides possess?
Answer» What type of lattice do the alkali metal hydrides possess?

Discussion

29.	four identical positive charges each of value Q are arranged at the four corners of a square of side L . a unit positive charge having mass M is placed at placed P ,at a hieght H above the of centre of square . what should be the value of Q in order to keep the unit charges is in equilibrium
Answer» four identical positive charges each of value Q are arranged at the four corners of a square of side L . a unit positive charge having mass M is placed at placed P ,at a hieght H above the of centre of square . what should be the value of Q in order to keep the unit charges is in equilibrium

Discussion

30.	40.For given hypothetical elementary parallel reaction, A ----> 2B (k1) ----->2C (k2) where k1/k2 = 0.5 Initially only 2 moles of A are present.The total no. of moles of A,B and C at the end of 75% reaction are (a) 2 (b) 3 (c) 4 (d) 3.5
Answer» 40.For given hypothetical elementary parallel reaction, A ----> 2B (k1) ----->2C (k2) where k1/k2 = 0.5 Initially only 2 moles of A are present.The total no. of moles of A,B and C at the end of 75% reaction are (a) 2 (b) 3 (c) 4 (d) 3.5

Discussion

31.	the e in an hydrogen atom males an trasition from k shell to m shell the ratio of angular velocity in initial and final stage i
Answer» the e in an hydrogen atom males an trasition from k shell to m shell the ratio of angular velocity in initial and final stage i

Discussion

32.

In a thermodynamic process on an ideal monatomic gas, the infinitesimal heat absorbed by the gas is given by TΔX, where T is temperature of the system and ΔX is the infinitesimal change in a thermodynamic quantity X of the system. For a mole of monatomic ideal gas X=32Rln(TTA)+Rln(VVA). Here, R is gas constant, V is volume of gas, TA and VA are constants.The List-I below gives some quantities involved in a process and List-II gives some possible values of these quantities. List-I List-II(i)Work done by the system in process 1→2→3(P)13RT0ln2(ii)Change in intermal energy in process 1→2→3(Q)13RT0(iii)Heat absorbed by the system in process 1→2→3(R)RT0(iv)Heat absotbed by the system in process 1→2(S)43RT0 (T)13RT0(3+ln2) (U)56RT0If the process carricd out on one mole of monoatomic ideal gas is as shown in figure in the PV-diagram with P0V0=13RT0, the correct match is,

Answer»

In a thermodynamic process on an ideal monatomic gas, the infinitesimal heat absorbed by the gas is given by $T Δ X$ , where $T$ is temperature of the system and $Δ X$ is the infinitesimal change in a thermodynamic quantity $X$ of the system. For a mole of monatomic ideal gas $X = \frac{3}{2} R ln (\frac{T}{T_{A}}) + Rln (\frac{V}{V_{A}}) .$ Here, $R$ is gas constant, $V$ is volume of gas, $T_{A}$ and $V_{A}$ are constants.

The List-I below gives some quantities involved in a process and List-II gives some possible values of these quantities.

	List-I		List-II
(i)	Work done by the system in process $1 \to 2 \to 3$	(P)	$\frac{1}{3} {R T}_{0} ln 2$
(ii)	Change in intermal energy in process $1 \to 2 \to 3$	(Q)	$\frac{1}{3} {R T}_{0}$
(iii)	Heat absorbed by the system in process $1 \to 2 \to 3$	(R)	${R T}_{0}$
(iv)	Heat absotbed by the system in process $1 \to 2$	(S)	$\frac{4}{3} {R T}_{0}$
		(T)	$\frac{1}{3} {R T}_{0} (3 + ln 2)$
		(U)	$\frac{5}{6} {R T}_{0}$

If the process carricd out on one mole of monoatomic ideal gas is as shown in figure in the PV-diagram with $P_{0} V_{0} = \frac{1}{3} {R T}_{0}$ , the correct match is,

Discussion

33.	Which of the following is true for a non-ideal solution showing negative deviation from Raoult’s law?
Answer» Which of the following is true for a non-ideal solution showing negative deviation from Raoult’s law?

Discussion

34.	critical temp.for CO2 and CH4 are 31.1celcius and -81.9celcius .Which of these has stronger intermolecular forces and why
Answer» critical temp.for CO2 and CH4 are 31.1celcius and -81.9celcius .Which of these has stronger intermolecular forces and why

Discussion

35.	The osmotic pressure of 5% (mass/volume) solutionof cane sugar at 50^° C is(1) 2.51 atm(2) 3 atm(3) 3.88 atm(4) 3.45 atm
Answer» The osmotic pressure of 5% (mass/volume) solutionof cane sugar at 50^° C is(1) 2.51 atm(2) 3 atm(3) 3.88 atm(4) 3.45 atm

Discussion

36.	Structure of a is mixed oxide is cubic close packed (cpp). The cubic unit cell of mixed oxide is composed of oxide ions. One fourth of the tetrahedral voids are occupied by divalent metal A and the octahedral voids are occupied by a monovalent metal B. The formula of the oxide is
Answer» Structure of a is mixed oxide is cubic close packed (cpp). The cubic unit cell of mixed oxide is composed of oxide ions. One fourth of the tetrahedral voids are occupied by divalent metal $A$ and the octahedral voids are occupied by a monovalent metal $B$ . The formula of the oxide is

Discussion

37.	The incorrect statement related to allotropes of carbon is/are
Answer» The incorrect statement related to allotropes of carbon is/are

Discussion

38.	24. If the unit cell of a mineral has a cubic closed packed (ccp) array of oxygen atoms with M fraction of octahedral holes and N fraction of tetrahedral holes are occupied by magnesium.then the value of M and N are.
Answer» 24. If the unit cell of a mineral has a cubic closed packed (ccp) array of oxygen atoms with M fraction of octahedral holes and N fraction of tetrahedral holes are occupied by magnesium.then the value of M and N are.

Discussion

39.	With which of the following configuration an atom has the lowest ionisation enthalpy 1s2 2s2 2p61s2 2s2 2p51s2 2s2 2p31s2 2s2 2p5 3s1
Answer» With which of the following configuration an atom has the lowest ionisation enthalpy 1s2 2s2 2p6 1s2 2s2 2p5 1s2 2s2 2p3 1s2 2s2 2p5 3s1

Discussion

40.	Compounds I and II may be grouped as
Answer» Compounds I and II may be grouped as

Discussion

41.	In disaccharides, if the reducing groups of monosaccharides, i.e., aldehydic or ketonic groups are bonded, these are non-reducing sugars. Which of the following disaccharide is a non-reducing sugar?
Answer» In disaccharides, if the reducing groups of monosaccharides, i.e., aldehydic or ketonic groups are bonded, these are non-reducing sugars. Which of the following disaccharide is a non-reducing sugar?

Discussion

42.	71. 1.5 moles of ClO2 reacts with 72g of O3 according to reaction 2ClO2+2O3⟶Cl2O6+2O2 .0.6 moles of Cl2O6 is formed .What is the % yield of reaction?
Answer» 71. 1.5 moles of $C l O_{2}$ reacts with 72g of $O_{3}$ according to reaction $2 C l O_{2} + 2 O_{3} ⟶ {C l}_{2} O_{6} + 2 O_{2}$ .0.6 moles of Cl2O6 is formed .What is the % yield of reaction?

42.

71. 1.5 moles of ClO2 reacts with 72g of O3 according to reaction 2ClO2+2O3⟶Cl2O6+2O2 .0.6 moles of Cl2O6 is formed .What is the % yield of reaction?

Answer»

71. 1.5 moles of $C l O_{2}$ reacts with 72g of $O_{3}$ according to reaction

$2 C l O_{2} + 2 O_{3} ⟶ {C l}_{2} O_{6} + 2 O_{2}$ .0.6 moles of Cl2O6 is formed .What is the % yield of reaction?

Discussion

43.	44. A solid AB2 has flourite structure . If all the ions along one of the body diagonals are removed .then the new formula of the compound is
Answer» 44. A solid AB2 has flourite structure . If all the ions along one of the body diagonals are removed .then the new formula of the compound is

Discussion

44.	Which of the following represents + E effect ?
Answer» Which of the following represents + E effect ?

Discussion

45.	(CH3)2SiCl2 on hydrolysis will produce:
Answer» $(C H_{3})_{2} S i C l_{2}$ on hydrolysis will produce:

Discussion

46.	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:
Answer» 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:

Discussion

47.	A signal bandlimited to 5 kHz is sampled at a rate higher than Nyquist rate such that the guard band is 3 kHz. The graph shows the probability of resulting samples. The data rate will be _ (in kbps).24.74
Answer» A signal bandlimited to 5 kHz is sampled at a rate higher than Nyquist rate such that the guard band is 3 kHz. The graph shows the probability of resulting samples. The data rate will be _ (in kbps). 24.74

Discussion

48.	Calculatethe degree of ionization of 0.05M acetic acid if its pKavalue is 4.74.Howis the degree of dissociation affected when its solution alsocontains (a) 0.01 M (b) 0.1 M in HCl?
Answer» Calculate the degree of ionization of 0.05M acetic acid if its pK_a value is 4.74. How is the degree of dissociation affected when its solution also contains (a) 0.01 M (b) 0.1 M in HCl?

48.

Calculatethe degree of ionization of 0.05M acetic acid if its pKavalue is 4.74.Howis the degree of dissociation affected when its solution alsocontains (a) 0.01 M (b) 0.1 M in HCl?

Answer»

Calculate
the degree of ionization of 0.05M acetic acid if its pK_a
value is 4.74.

How
is the degree of dissociation affected when its solution also
contains (a) 0.01 M (b) 0.1 M in HCl?

Discussion

49.	Haber’s Process is used for the preparation of:
Answer» Haber’s Process is used for the preparation of:

Discussion

50.	In the following molecule,Hybridisation of Carbon a, b and c respectively are:
Answer» In the following molecule, Hybridisation of Carbon a, b and c respectively are:

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

23.The CNC bond angle in CH3NCS is

2 Faraday of electricity is passed through a solution of CuSO4 . The mass of copper deposited at the cathode is:

What is the boiling point of 0.1 molal aquesous solution of KCl(Kb=0.52 K molal^-1)?

Write the number 123543 in scientific notation.

If at 298 K the bond energies of C - H, C - C, C=C and H - H bonds are respectively 414, 347, 615 and 435 kJ mol−1, the value of enthalpy change for the reactionCH2=CH2(g)+H2(g)→CH3−CH3 is:

Consider the following structures and calculate value of (P2−Q2)where P = Total number of correct structure representationQ = Total number of incorrect structure representation

What is normal force? What is its formula?

Arrange following complex ions in increasing order of crystal field splitting energy [Cr(Cl)6]3–, [Cr(CN)6]3–, [Cr(NH3)6]3+

In the complex ion ML6^+n, M^n+ has five d-electrons and L is weak field ligand. According to crystal field theory, the magnetic properties of the complex ion corresponds to how many unpaired electrons- (1) 0 (2) 5 (3) 2 (4) 3

Calculate the change in entropy for the following reaction 2CO(g)+O2(g)→2CO2(g).Given S0CO2=213.6JK−1mol−1,S0CO=297.6JK−1mol−1 respectively.

Ferrocene is an example of:

According to Bohr's theory, which of the following correctly represents the variation of energy and radius of an electron in nth orbit of H-atom?

write the dash structural formulae of (CH3)3 C CH2CH3

Which of the following gives effervescences of CO2 with NaHCO3 solution ?

86.Why gain or loss of electrons cannot take place between similar atoms?

The oxidation state of Fe in FeSO4.(NH4)2SO4.6H2O is

0.2 mole of sodium acetate is added to a 1 L, 0.2 Maqueous solution of acetic acid. The ratio of initialto final \lbrack H+\rbrack is (K of acetic acid = 1.8 x 10-4)

It takes 10 minutes for completion of 50% of an unknown order reaction while it takes 50 minutes for 75% completion for the same reaction hence the order of reaction will be

Heavy water (D2O) is

A gaseous organic compound has a density of 2.5 kg/m3 at 2 atm and 273∘C. The molecular formula of the compound can be:

When a solution of specific conductance 1.342 Sm−1 was placed in a conductivity cell with parallel electrodes, the resistance was found to be 170.5 ohm. The area of the electrodes is 1.86×10−4 m2 . Calculate the distance between the electrodes.

Identify Y in the following reactions:

what is the mechanism of isomerization reaction of alkynes?

normality

What type of lattice do the alkali metal hydrides possess?

four identical positive charges each of value Q are arranged at the four corners of a square of side L . a unit positive charge having mass M is placed at placed P ,at a hieght H above the of centre of square . what should be the value of Q in order to keep the unit charges is in equilibrium

40.For given hypothetical elementary parallel reaction, A ----> 2B (k1) ----->2C (k2) where k1/k2 = 0.5 Initially only 2 moles of A are present.The total no. of moles of A,B and C at the end of 75% reaction are (a) 2 (b) 3 (c) 4 (d) 3.5

the e in an hydrogen atom males an trasition from k shell to m shell the ratio of angular velocity in initial and final stage i

Which of the following is true for a non-ideal solution showing negative deviation from Raoult’s law?

critical temp.for CO2 and CH4 are 31.1celcius and -81.9celcius .Which of these has stronger intermolecular forces and why

The osmotic pressure of 5% (mass/volume) solutionof cane sugar at 50^° C is(1) 2.51 atm(2) 3 atm(3) 3.88 atm(4) 3.45 atm

Structure of a is mixed oxide is cubic close packed (cpp). The cubic unit cell of mixed oxide is composed of oxide ions. One fourth of the tetrahedral voids are occupied by divalent metal A and the octahedral voids are occupied by a monovalent metal B. The formula of the oxide is

The incorrect statement related to allotropes of carbon is/are

24. If the unit cell of a mineral has a cubic closed packed (ccp) array of oxygen atoms with M fraction of octahedral holes and N fraction of tetrahedral holes are occupied by magnesium.then the value of M and N are.

With which of the following configuration an atom has the lowest ionisation enthalpy 1s2 2s2 2p61s2 2s2 2p51s2 2s2 2p31s2 2s2 2p5 3s1

Compounds I and II may be grouped as

In disaccharides, if the reducing groups of monosaccharides, i.e., aldehydic or ketonic groups are bonded, these are non-reducing sugars. Which of the following disaccharide is a non-reducing sugar?

71. 1.5 moles of ClO2 reacts with 72g of O3 according to reaction 2ClO2+2O3⟶Cl2O6+2O2 .0.6 moles of Cl2O6 is formed .What is the % yield of reaction?

44. A solid AB2 has flourite structure . If all the ions along one of the body diagonals are removed .then the new formula of the compound is

Which of the following represents + E effect ?

(CH3)2SiCl2 on hydrolysis will produce:

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:

A signal bandlimited to 5 kHz is sampled at a rate higher than Nyquist rate such that the guard band is 3 kHz. The graph shows the probability of resulting samples. The data rate will be _ (in kbps).24.74

Calculatethe degree of ionization of 0.05M acetic acid if its pKavalue is 4.74.Howis the degree of dissociation affected when its solution alsocontains (a) 0.01 M (b) 0.1 M in HCl?

Haber’s Process is used for the preparation of:

In the following molecule,Hybridisation of Carbon a, b and c respectively are: