46295 + Interview Questions in Chemistry Page 40 InterviewSolution

1951.	if the weight of metal chloride is x gram containing y gram of metal, equivalent weight of metal will be _______
Answer» if the weight of metal chloride is x gram containing y gram of metal, equivalent weight of metal will be _______

Discussion

1952.	67. On what factors does bond order depend?
Answer» 67. On what factors does bond order depend?

Discussion

1953.	At temperature T K, PC15 is 50% dissociated at an equilibrium pressure of 4 atm. At what pressure it would dissociate to the extent of 80% at the same temperature? (1) 0.05 atm (2) 0.60 atm (4) 2.50 atm ) 0.75 atm
Answer» At temperature T K, PC15 is 50% dissociated at an equilibrium pressure of 4 atm. At what pressure it would dissociate to the extent of 80% at the same temperature? (1) 0.05 atm (2) 0.60 atm (4) 2.50 atm ) 0.75 atm

Discussion

1954.	What is hyper conjugation? Write the relativity order.
Answer» What is hyper conjugation? Write the relativity order.

Discussion

1955.	Which of the following species has a linear shape?
Answer» Which of the following species has a linear shape?

Discussion

1956.	List the following compounds in order of decreasing reactivity towards ch3o- in an sn2 reaction carried out in ch3oh:ch3f,ch3cl,ch3br,ch3i,ch3oso2cf3,14ch3oh.
Answer» List the following compounds in order of decreasing reactivity towards ch3o- in an sn2 reaction carried out in ch3oh:ch3f,ch3cl,ch3br,ch3i,ch3oso2cf3,14ch3oh.

Discussion

1957.	What will be the pressure exerted by a mixture of 3.2 g of methane and 4.4 g of carbon dioxide contained in a 9 dm3 flask at 27 °C ?
Answer» What will be the pressure exerted by a mixture of 3.2 g of methane and 4.4 g of carbon dioxide contained in a 9 dm³ flask at 27 °C ?

Discussion

1958.	How many electrons are present in 7g of N³- ion.... Explain in detail
Answer» How many electrons are present in 7g of N³- ion.... Explain in detail

1958.

How many electrons are present in 7g of N³- ion.... Explain in detail

Answer»

How many electrons are present in 7g of N³- ion....

Explain in detail

Discussion

1959.	reaction of mg with conc HNO_3 Mg + conc HNO_3 → ?
Answer» reaction of mg with conc HNO_3 Mg + conc HNO_3 → ?

Discussion

1960.	Maximum pKb value is of :
Answer» Maximum $p K_{b}$ value is of :

Discussion

1961.	which is correct thermal stability orderfor H2E( E= o,s,se,Te,po)
Answer» which is correct thermal stability orderfor H2E( E= o,s,se,Te,po)

Discussion

1962.	Which one of the following reaction does not occur ?
Answer» Which one of the following reaction does not occur ?

Discussion

1963.	A solution of sodium metal in liquid ammonia is strongly reducing due to the presence of :
Answer» A solution of sodium metal in liquid ammonia is strongly reducing due to the presence of :

Discussion

1964.	What is surface tension in viscosity explain?
Answer» What is surface tension in viscosity explain?

Discussion

1965.	Read the following questions and answer as per the directions given below: Statement – I: The first ionization energy of Be is greater than that of B. Statement – II: 2p-orbital is lower in energy than 2s.
Answer» Read the following questions and answer as per the directions given below: Statement – I: The first ionization energy of Be is greater than that of B. Statement – II: 2p-orbital is lower in energy than 2s.

1965.

Read the following questions and answer as per the directions given below: Statement – I: The first ionization energy of Be is greater than that of B. Statement – II: 2p-orbital is lower in energy than 2s.

Answer»

Read the following questions and answer as per the directions given below:

Statement – I: The first ionization energy of Be is greater than that of B.

Statement – II: 2p-orbital is lower in energy than 2s.

Discussion

1966.	What is the difference between nodal plane, nodal surface, angular node?Give value of each of these in dz².
Answer» What is the difference between nodal plane, nodal surface, angular node? Give value of each of these in dz².

Discussion

1967.	A complex of a certain metal has the magnetic moment of 4.9 BM whereas another complex of the same metal with the same oxidation state has zero magnetic moment. The metal ion would be:
Answer» A complex of a certain metal has the magnetic moment of 4.9 BM whereas another complex of the same metal with the same oxidation state has zero magnetic moment. The metal ion would be:

Discussion

1968.	In 100g of napthalene,.2.423g of S was dissolved. Melting point of napthalene=80.1°C. ∆Tf=661°C, Lf=35.7cal/g of napthalene. Molecular formula of sulphur added is (a)S2. (b)S4. (c)S6. (d)S8
Answer» In 100g of napthalene,.2.423g of S was dissolved. Melting point of napthalene=80.1°C. ∆Tf=661°C, Lf=35.7cal/g of napthalene. Molecular formula of sulphur added is (a)S2. (b)S4. (c)S6. (d)S8

Discussion

1969.	The molar conductance of 0.1 M CH3COOH at pH=4 is Scm2mol−1. (Given the limiting molar conductance of acetic acid is 390 Scm2mol−1).
Answer» The molar conductance of 0.1 M $C H_{3} C O O H$ at pH=4 is $S c m^{2} m o l^{- 1}$ . (Given the limiting molar conductance of acetic acid is 390 $S c m^{2} m o l^{- 1}$ ).

Discussion

1970.	When phenol is reacted with CHCl3 and NaOH followed by acidification, salicylaldehyde is obtained. Which of the following species is involved in the above mentioned reaction as an intermediate?
Answer» When phenol is reacted with $C H C l_{3}$ and $N a O H$ followed by acidification, salicylaldehyde is obtained. Which of the following species is involved in the above mentioned reaction as an intermediate?

Discussion

1971.	2,3-Dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid?
Answer» 2,3-Dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid?

Discussion

1972.	65. In which of the following the energy change corresponds to first ionization potential only: A. X(g) ---> X+ (g) + e B. X2(g) ---> X+ (g) + e C. X(s) ---> X+ (g) + e D. X2(aq) ---> X+ (aq) + e
Answer» 65. In which of the following the energy change corresponds to first ionization potential only: A. X(g) ---> X+ (g) + e B. X2(g) ---> X+ (g) + e C. X(s) ---> X+ (g) + e D. X2(aq) ---> X+ (aq) + e

Discussion

1973.	The average number of degree of freedom per molecule for a gas is 7. A sample of the gas perform 30 J of work when it expands at constant pressure. Find the heat absorbed by the gas in the process.
Answer» The average number of degree of freedom per molecule for a gas is $7$ . A sample of the gas perform $30 J$ of work when it expands at constant pressure. Find the heat absorbed by the gas in the process.

Discussion

1974.	Which of the following contains two unpaired electrons?
Answer» Which of the following contains two unpaired electrons?

Discussion

1975.	In a container of capacity 1 litre there are 1023 molecules each of mass 10−22 g. If the root mean square speed is 105 cm/s then, calculate the pressure of the gas.
Answer» In a container of capacity 1 litre there are $10^{23}$ molecules each of mass $10^{- 22} g$ . If the root mean square speed is $10^{5} cm/s$ then, calculate the pressure of the gas.

Discussion

1976.	The correct order of acidity for the following compounds is
Answer» The correct order of acidity for the following compounds is

1976.

The correct order of acidity for the following compounds is

Answer»

The correct order of acidity for the following compounds is

Discussion

1977.	what is trigonal and tetragonal crystal group?
Answer» what is trigonal and tetragonal crystal group?

Discussion

1978.	Vapour pressure of solution having 2g of solute X(gram atomic weight =32) in 100g of CS2 ( V. P=854torr) is 848.9 Torr the molecular weight of solute
Answer» Vapour pressure of solution having 2g of solute X(gram atomic weight =32) in 100g of CS2 ( V. P=854torr) is 848.9 Torr the molecular weight of solute

Discussion

1979.	Which of the following electronic configurations represent a violation of Hund's rule for an atom in its ground state?
Answer» Which of the following electronic configurations represent a violation of Hund's rule for an atom in its ground state?

Discussion

1980.	The group which is most activating is 1)NO2 2)NH2 (2) -OCH (4) -OH
Answer» The group which is most activating is 1)NO2 2)NH2 (2) -OCH (4) -OH

Discussion

1981.	In ICl4, the shape is square planar. The number of bond pair-lone lone pair repulsion at 90o are : A) 6. B) 8. C) 12. D) 4
Answer» In ICl4, the shape is square planar. The number of bond pair-lone lone pair repulsion at 90^{o are :} ^{A) 6. B) 8. C) 12. D) 4}

1981.

In ICl4, the shape is square planar. The number of bond pair-lone lone pair repulsion at 90o are : A) 6. B) 8. C) 12. D) 4

Answer»

In ICl4, the shape is square planar. The number of bond pair-lone lone pair repulsion at 90^{o are :}

^{A) 6. B) 8. C) 12. D) 4}

Discussion

1982.	what's the n factor and how to find n factor in redox reactions?
Answer» what's the n factor and how to find n factor in redox reactions?

Discussion

1983.	(4/x+y)-(3/x-y)=5 and (9/x+y)-(5/x-y)=4 find x and y
Answer» (4/x+y)-(3/x-y)=5 and (9/x+y)-(5/x-y)=4 find x and y

Discussion

1984.	Calculate EcellPt/ H2 (2 atm) / HCl (10³-) \|\| HCl (3×10²- M)/ H2(4 atm)/ Pt
Answer» Calculate Ecell Pt/ H2 (2 atm) / HCl (10³-) \|\| HCl (3×10²- M)/ H2(4 atm)/ Pt

Discussion

1985.	What is a side reaction?
Answer» What is a side reaction?

Discussion

1986.	Bond angle in SO2Cl2
Answer» Bond angle in SO2Cl2

Discussion

1987.	Formic acid is 4.5% dissociated in a 0.1 N solution at 20∘ C. The ionization constant of formic acid is:
Answer» Formic acid is $4.5 %$ dissociated in a $0.1 N$ solution at $20^{\circ} C$ . The ionization constant of formic acid is:

Discussion

1988.	what is the relation between d and l and D and L which of these are enantiomers or diastereomers.e xplain wrt to glucose
Answer» what is the relation between d and l and D and L which of these are enantiomers or diastereomers.e xplain wrt to glucose

Discussion

1989.	State some points that clearly demarcates lmph from blood?
Answer» State some points that clearly demarcates lmph from blood?

Discussion

1990.	Mass of one molecule of sulphuric acid is 98 .It will be expressed in u or gram?
Answer» Mass of one molecule of sulphuric acid is 98 .It will be expressed in u or gram?

Discussion

1991.	Soft heavy metal melts at 30∘ C and is used in making heat sensitive thermometers the metal is
Answer» Soft heavy metal melts at 30 $^{\circ}$ C and is used in making heat sensitive thermometers the metal is

1991.

Soft heavy metal melts at 30∘ C and is used in making heat sensitive thermometers the metal is

Answer»

Soft heavy metal melts at 30 $^{\circ}$ C and is used in making heat sensitive thermometers the metal is

Discussion

1992.	6. By increasing temperatureofagasby6^° Citspressure increases by 0.4 %, at constant volumeThen initial temperature of gas is(1) 1000 K(3) 2000 K(2) 1500 K(4) 750 k
Answer» 6. By increasing temperatureofagasby6^° Citspressure increases by 0.4 %, at constant volumeThen initial temperature of gas is(1) 1000 K(3) 2000 K(2) 1500 K(4) 750 k

Discussion

1993.	Write few uses of ground water.
Answer» Write few uses of ground water.

Discussion

1994.	Which of the following species act as bronsted base but not as acid?1)cH3cooH 2)Hco3- 3)H2po2- 4)H2po3-
Answer» Which of the following species act as bronsted base but not as acid?1)cH3cooH 2)Hco3- 3)H2po2- 4)H2po3-

Discussion

1995.	What doyou understand by the terms:(i)hydrogen economy (ii) hydrogenation (iii) ‘syngas’ (iv)water-gas shift reaction (v) fuel-cell ?
Answer» What do you understand by the terms: (i) hydrogen economy (ii) hydrogenation (iii) ‘syngas’ (iv) water-gas shift reaction (v) fuel-cell ?

1995.

What doyou understand by the terms:(i)hydrogen economy (ii) hydrogenation (iii) ‘syngas’ (iv)water-gas shift reaction (v) fuel-cell ?

Answer»

What do
you understand by the terms:

(i)
hydrogen economy (ii) hydrogenation (iii) ‘syngas’ (iv)
water-gas shift reaction (v) fuel-cell ?

Discussion

1996.	66. The vapour pressure of pure liquid solvent is 0.80 atm. When a non volatile substance B is added to solvent its vapour pressure reduces to 0.60 atm mole fraction of component B in solution is
Answer» 66. The vapour pressure of pure liquid solvent is 0.80 atm. When a non volatile substance B is added to solvent its vapour pressure reduces to 0.60 atm mole fraction of component B in solution is

Discussion

1997.	Choose the correct answer.1. What went up the hill?(a) a path, (b) a street, (c) a road, (d) a rail line2. What is the name of the girl in the story?(a) Seema, (b) Beena, (c) Meena, (d) Nina3. How old was Meena?(a) Ten, (b) Twelve, (c) Nine, (d) Eight4. How old was Meena's brother?(a) Five, (b) Four, (c) Six, (d) Seven
Answer» Choose the correct answer. 1. What went up the hill? (a) a path, (b) a street, (c) a road, (d) a rail line 2. What is the name of the girl in the story? (a) Seema, (b) Beena, (c) Meena, (d) Nina 3. How old was Meena? (a) Ten, (b) Twelve, (c) Nine, (d) Eight 4. How old was Meena's brother? (a) Five, (b) Four, (c) Six, (d) Seven

Discussion

1998.	The pH of a 0.02 M NH4Cl solution will be: [Given Kb(NH4OH)=10−5and log2=0.301].
Answer» The $p H$ of a $0.02 M N H_{4} C l$ solution will be: $[Given K_{b} (N H_{4} O H) = 10^{- 5} and log 2 = 0.301] .$

Discussion

1999.	The maximum ease of abstraction of a hydrogen by a chlorine radical is shown in which of the following.
Answer» The maximum ease of abstraction of a hydrogen by a chlorine radical is shown in which of the following.

Discussion

2000.	Find out the names of three metals and three non-metals from the box given as Fig. 4.2
Answer» Find out the names of three metals and three non-metals from the box given as Fig. 4.2

Discussion

Explore topic-wise InterviewSolutions in .

if the weight of metal chloride is x gram containing y gram of metal, equivalent weight of metal will be _______

67. On what factors does bond order depend?

At temperature T K, PC15 is 50% dissociated at an equilibrium pressure of 4 atm. At what pressure it would dissociate to the extent of 80% at the same temperature? (1) 0.05 atm (2) 0.60 atm (4) 2.50 atm ) 0.75 atm

What is hyper conjugation? Write the relativity order.

Which of the following species has a linear shape?

List the following compounds in order of decreasing reactivity towards ch3o- in an sn2 reaction carried out in ch3oh:ch3f,ch3cl,ch3br,ch3i,ch3oso2cf3,14ch3oh.

What will be the pressure exerted by a mixture of 3.2 g of methane and 4.4 g of carbon dioxide contained in a 9 dm3 flask at 27 °C ?

How many electrons are present in 7g of N³- ion.... Explain in detail

reaction of mg with conc HNO_3 Mg + conc HNO_3 → ?

Maximum pKb value is of :

which is correct thermal stability orderfor H2E( E= o,s,se,Te,po)

Which one of the following reaction does not occur ?

A solution of sodium metal in liquid ammonia is strongly reducing due to the presence of :

What is surface tension in viscosity explain?

Read the following questions and answer as per the directions given below: Statement – I: The first ionization energy of Be is greater than that of B. Statement – II: 2p-orbital is lower in energy than 2s.

What is the difference between nodal plane, nodal surface, angular node?Give value of each of these in dz².

A complex of a certain metal has the magnetic moment of 4.9 BM whereas another complex of the same metal with the same oxidation state has zero magnetic moment. The metal ion would be:

In 100g of napthalene,.2.423g of S was dissolved. Melting point of napthalene=80.1°C. ∆Tf=661°C, Lf=35.7cal/g of napthalene. Molecular formula of sulphur added is (a)S2. (b)S4. (c)S6. (d)S8

The molar conductance of 0.1 M CH3COOH at pH=4 is Scm2mol−1. (Given the limiting molar conductance of acetic acid is 390 Scm2mol−1).

When phenol is reacted with CHCl3 and NaOH followed by acidification, salicylaldehyde is obtained. Which of the following species is involved in the above mentioned reaction as an intermediate?

2,3-Dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid?

65. In which of the following the energy change corresponds to first ionization potential only: A. X(g) ---> X+ (g) + e B. X2(g) ---> X+ (g) + e C. X(s) ---> X+ (g) + e D. X2(aq) ---> X+ (aq) + e

The average number of degree of freedom per molecule for a gas is 7. A sample of the gas perform 30 J of work when it expands at constant pressure. Find the heat absorbed by the gas in the process.

Which of the following contains two unpaired electrons?

In a container of capacity 1 litre there are 1023 molecules each of mass 10−22 g. If the root mean square speed is 105 cm/s then, calculate the pressure of the gas.

The correct order of acidity for the following compounds is

what is trigonal and tetragonal crystal group?

Vapour pressure of solution having 2g of solute X(gram atomic weight =32) in 100g of CS2 ( V. P=854torr) is 848.9 Torr the molecular weight of solute

Which of the following electronic configurations represent a violation of Hund's rule for an atom in its ground state?

The group which is most activating is 1)NO2 2)NH2 (2) -OCH (4) -OH

In ICl4, the shape is square planar. The number of bond pair-lone lone pair repulsion at 90o are : A) 6. B) 8. C) 12. D) 4

what's the n factor and how to find n factor in redox reactions?

(4/x+y)-(3/x-y)=5 and (9/x+y)-(5/x-y)=4 find x and y

Calculate EcellPt/ H2 (2 atm) / HCl (10³-) || HCl (3×10²- M)/ H2(4 atm)/ Pt

What is a side reaction?

Bond angle in SO2Cl2

Formic acid is 4.5% dissociated in a 0.1 N solution at 20∘ C. The ionization constant of formic acid is:

what is the relation between d and l and D and L which of these are enantiomers or diastereomers.e xplain wrt to glucose

State some points that clearly demarcates lmph from blood?

Mass of one molecule of sulphuric acid is 98 .It will be expressed in u or gram?

Soft heavy metal melts at 30∘ C and is used in making heat sensitive thermometers the metal is

6. By increasing temperatureofagasby6^° Citspressure increases by 0.4 %, at constant volumeThen initial temperature of gas is(1) 1000 K(3) 2000 K(2) 1500 K(4) 750 k

Write few uses of ground water.

Which of the following species act as bronsted base but not as acid?1)cH3cooH 2)Hco3- 3)H2po2- 4)H2po3-

Which of the following species act as bronsted base but not as acid?1)cH3cooH 2)Hco3- 3)H2po2- 4)H2po3-

What doyou understand by the terms:(i)hydrogen economy (ii) hydrogenation (iii) ‘syngas’ (iv)water-gas shift reaction (v) fuel-cell ?

66. The vapour pressure of pure liquid solvent is 0.80 atm. When a non volatile substance B is added to solvent its vapour pressure reduces to 0.60 atm mole fraction of component B in solution is

The pH of a 0.02 M NH4Cl solution will be: [Given Kb(NH4OH)=10−5and log2=0.301].

The maximum ease of abstraction of a hydrogen by a chlorine radical is shown in which of the following.

Find out the names of three metals and three non-metals from the box given as Fig. 4.2