46295 + Interview Questions in Chemistry

1.	What happens when P4O6 reacts with boiling water.what are the possible products in different states of P4O6
Answer» What happens when P4O6 reacts with boiling water.what are the possible products in different states of P4O6

Discussion

2.	The absolute configuration of the given compound is:
Answer» The absolute configuration of the given compound is:

Discussion

3.	Which of the following is required in Stephen reaction?
Answer» Which of the following is required in Stephen reaction?

Discussion

4.	For the reaction at equilbrium: N2O4(g)⇌2NO2(g), the concentration of N2O4 and NO2 at equilibrium are 4.8×10−2 and 1.2×10−2mol/L respectively. The value of Kc for the reaction is:
Answer» For the reaction at equilbrium: $N_{2} O_{4} (g) ⇌ 2 N O_{2} (g)$ , the concentration of $N_{2} O_{4}$ and $N O_{2}$ at equilibrium are $4.8 \times 10^{- 2}$ and $1.2 \times 10^{- 2} mol/L$ respectively. The value of $K_{c}$ for the reaction is:

Discussion

5.	The ratio of specific charge of an es to that of a proton is
Answer» The ratio of specific charge of an es to that of a proton is

Discussion

6.	Which of the following is not a linear molecule?
Answer» Which of the following is not a linear molecule?

Discussion

7.	Number of orbitals in ' h ' sub - shell is ______________ .A. 11B. 15C. 17D. 19
Answer» Number of orbitals in ' h ' sub - shell is ______________ . A. 11 B. 15 C. 17 D. 19

Discussion

8.	Which of the following is the correct order of increasing field strength of ligands to form coordination compounds ?
Answer» Which of the following is the correct order of increasing field strength of ligands to form coordination compounds ?

Discussion

9.	In the formation of diazonium salt by reacting aliphatic amine with NaNO2 and HX, the electrophile is
Answer» In the formation of diazonium salt by reacting aliphatic amine with $N a N O_{2}$ and HX, the electrophile is

Discussion

10.	Is cyclobutadiene aromatic , anti aromatic or non aromatic?
Answer» Is cyclobutadiene aromatic , anti aromatic or non aromatic?

Discussion

11.	40.Why bond order of CO+ is 3.5, explain with reason?
Answer» 40.Why bond order of CO+ is 3.5, explain with reason?

Discussion

12.	The reduction potential of hydrogen electrode at pH=7 will be (1) 0 V (2) -0.414 V (3) + 0.414 V (4) 0.72 V
Answer» The reduction potential of hydrogen electrode at pH=7 will be (1) 0 V (2) -0.414 V (3) + 0.414 V (4) 0.72 V

Discussion

13.	40.Phenol is less acidic than?1)ehanol2)methanol3)o-nitrophenol4)p-nitrophenol
Answer» 40.Phenol is less acidic than?1)ehanol2)methanol3)o-nitrophenol4)p-nitrophenol

Discussion

14.	Which is not true regarding rayon?
Answer» Which is not true regarding rayon?

Discussion

15.	Which of the following compounds will give only one isomer on monochlorination (i)Isopentane (ii) Neopetane (iii) Cyclopentane (iv) 2,2,3,3 - tetramethyl butane (v) n-butane
Answer» Which of the following compounds will give only one isomer on monochlorination (i)Isopentane (ii) Neopetane (iii) Cyclopentane (iv) 2,2,3,3 - tetramethyl butane (v) n-butane

15.

Which of the following compounds will give only one isomer on monochlorination (i)Isopentane (ii) Neopetane (iii) Cyclopentane (iv) 2,2,3,3 - tetramethyl butane (v) n-butane

Answer»

Which of the following compounds will give only one isomer on monochlorination

(i)Isopentane (ii) Neopetane (iii) Cyclopentane (iv) 2,2,3,3 - tetramethyl butane (v) n-butane

Discussion

16.	Ionic radii of
Answer» Ionic radii of

Discussion

17.	6. How much energy in joules must be needed to convert all the atoms of sodium to sodium ions presentin 2.3 mg of sodium vapours ? lonisation energy of sodium is 495kj/mol:(1) 495×10-4 kJ/mhol. (2) 395×10-4 kJ/mol.(3) 495 k.J/mol.(4) 300kJ/mol.
Answer» 6. How much energy in joules must be needed to convert all the atoms of sodium to sodium ions presentin 2.3 mg of sodium vapours ? lonisation energy of sodium is 495kj/mol:(1) 495×10-4 kJ/mhol. (2) 395×10-4 kJ/mol.(3) 495 k.J/mol.(4) 300kJ/mol.

Discussion

18.	Which of the following set of the reagent is used to convert nitrobenzene to 1,3 - dibromobenzene?
Answer» Which of the following set of the reagent is used to convert nitrobenzene to 1,3 - dibromobenzene?

Discussion

19.	XeF2 is isostructural with-
Answer» $X e F_{2}$ is isostructural with-

Discussion

20.	49 Arrange in decreasing order of reactivity towards aromatic electrophilic substitution reaction. 1. C6h5ch3 2. C6h5c2h5 3. C6h5c(ch3) 4. C6h5ch (ch3)2
Answer» 49 Arrange in decreasing order of reactivity towards aromatic electrophilic substitution reaction. 1. C6h5ch3 2. C6h5c2h5 3. C6h5c(ch3) 4. C6h5ch (ch3)2

Discussion

21.	One kg of an ideal gas (gas constant, R=400 J/kgK; specific heat at constant volume, cv=1000 J/kgK) at 1 bar, and 300 K is contained in sealed rigid cylinder. During an adiabatic process, 100 kJ of work is done on the system by a stirrer. The increase in entropy of the system is..... J/K 287.682
Answer» One kg of an ideal gas (gas constant, $R = 400$ J/kgK; specific heat at constant volume, $c_{v} = 1000$ J/kgK) at $1$ bar, and $300$ K is contained in sealed rigid cylinder. During an adiabatic process, $100$ kJ of work is done on the system by a stirrer. The increase in entropy of the system is..... J/K 287.682

Discussion

22.	33 define salt bridge
Answer» 33 define salt bridge

Discussion

23.	Different between ortha nitrophenol and para nitrophenol
Answer» Different between ortha nitrophenol and para nitrophenol

Discussion

24.	At certain temperture a gass is present in a vessel of 20l at 4atm. Give the volume of gass if the pressure is incresed (1)-to 6atm (2)- by 6 atm
Answer» At certain temperture a gass is present in a vessel of 20l at 4atm. Give the volume of gass if the pressure is incresed (1)-to 6atm (2)- by 6 atm

Discussion

25.	A proton captures a free electron whose K.E. is zero & forms a hydrogen atom of lowest energy-level (n = 1). If a photon is emitted in this process, what will be the wavelength (in ∘A) of radiation? (report the answer to the nearest integer) (Ionisation potential of hydrogen =13.6 volt, e=1.6×10−19 J,h=6.6×10−34Js,c=3.0×108m/s)
Answer» A proton captures a free electron whose K.E. is zero & forms a hydrogen atom of lowest energy-level (n = 1). If a photon is emitted in this process, what will be the wavelength (in $\circ A$ ) of radiation? (report the answer to the nearest integer) (Ionisation potential of hydrogen =13.6 volt, $e = 1.6 \times 10^{- 19} J, h = 6.6 \times 10^{- 34} J s, c = 3.0 \times 10^{8} m / s$ )

Discussion

26.	What is temperature coefficient of resistance?
Answer» What is temperature coefficient of resistance?

Discussion

27.	at what temp, hydrogen molecules will have same average speed as nitrogen molecules at 47C? A. 32.2 K B. 50 K C. 22.86 K D. 14.84 K
Answer» at what temp, hydrogen molecules will have same average speed as nitrogen molecules at 47C? A. 32.2 K B. 50 K C. 22.86 K D. 14.84 K

Discussion

28.	Sublimation can’t be used for the purification of
Answer» Sublimation can’t be used for the purification of

Discussion

29.	Regarding lactose, some statements are given below A) On hydrolysis, lactose gives β-D-galactose and β-D-glucose B) In lactose C1 of β-D-galactose has acetal structure and C1 of β-D-glucose has hemiacetal structure C) In lactose molecule, β-D-galactose is a non-reducing unit and β-D-glucose is reducing unit The correct statements are
Answer» Regarding lactose, some statements are given below A) On hydrolysis, lactose gives β-D-galactose and β-D-glucose B) In lactose C₁ of β-D-galactose has acetal structure and C₁ of β-D-glucose has hemiacetal structure C) In lactose molecule, β-D-galactose is a non-reducing unit and β-D-glucose is reducing unit The correct statements are

29.

Regarding lactose, some statements are given below A) On hydrolysis, lactose gives β-D-galactose and β-D-glucose B) In lactose C1 of β-D-galactose has acetal structure and C1 of β-D-glucose has hemiacetal structure C) In lactose molecule, β-D-galactose is a non-reducing unit and β-D-glucose is reducing unit The correct statements are

Answer»

Regarding lactose, some statements are given below

A) On hydrolysis, lactose gives β-D-galactose and β-D-glucose

B) In lactose C₁ of β-D-galactose has acetal structure and C₁ of β-D-glucose has hemiacetal structure

C) In lactose molecule, β-D-galactose is a non-reducing unit and β-D-glucose is reducing unit

The correct statements are

Discussion

30.	which of the following show optical activity?(a)n-butyl amine (b)isobutyl amine (c)sec-butyl amine (d) t-Butyl amine
Answer» which of the following show optical activity? (a)n-butyl amine (b)isobutyl amine (c)sec-butyl amine (d) t-Butyl amine

Discussion

31.	Expand (x+6)(x+8) using suitable identity.
Answer» Expand (x+6)(x+8) using suitable identity.

Discussion

32.	When propan-1-ol is dehydrated, the productobtained is again hydrated and further oxidisedtoform a compound. The compound is(1) Propargyl alcohol(2) Propanone(3) Ethylene -1,2-diol(4) Propane-1, 2-diol
Answer» When propan-1-ol is dehydrated, the productobtained is again hydrated and further oxidisedtoform a compound. The compound is(1) Propargyl alcohol(2) Propanone(3) Ethylene -1,2-diol(4) Propane-1, 2-diol

Discussion

33.	The crystal structure of CoO would be expected to be similar to which of the following crystals? (Radii:Co2+=0.072 nm, O2−=0.140 nm)
Answer» The crystal structure of $C o O$ would be expected to be similar to which of the following crystals? (Radii: $C o^{2 +} = 0.072 n m, O^{2 -} = 0.140 n m)$

Discussion

34.	Q 12/31 An electron is moving in 3rd orbit ofHydrogen atom. The frequency of moving electron is
Answer» Q 12/31 An electron is moving in 3rd orbit ofHydrogen atom. The frequency of moving electron is

Discussion

35.	A radioactive sample is undergoing α−decay. At any time t1, its activity is A and at another time t2, the activity is A/5. What is the average life-time for the sample?
Answer» A radioactive sample is undergoing $α -$ decay. At any time $t_{1}$ , its activity is $A$ and at another time $t_{2}$ , the activity is $A / 5$ . What is the average life-time for the sample?

Discussion

36.	The rms velocity of hydrogen is √7 times the rms velocity of nitrogen. If T is the temperature of the gas, then:
Answer» The rms velocity of hydrogen is $\sqrt{7}$ times the rms velocity of nitrogen. If $T$ is the temperature of the gas, then:

Discussion

37.

Match the following:(i) Biodegradeable polymer(p) 3-hydroxybutanoic acid(ii) Bakelite(q) Phenol(iii) Neoprene(r) 2-chlorobuta-1,3-diene(iv) Glyptal(s) phthalic acid

Answer»

Match the following:

(i) Biodegradeable polymer	(p) 3-hydroxybutanoic acid
(ii) Bakelite	(q) Phenol
(iii) Neoprene	(r) 2-chlorobuta-1,3-diene
(iv) Glyptal	(s) phthalic acid

Discussion

38.	22 Ionisation constant of AOH and BOH base are kb1 and kb2. Their relationship is pkb1
Answer» 22 Ionisation constant of AOH and BOH base are kb1 and kb2. Their relationship is pkb1

Discussion

39.	10.C+H2O=CO+H2 . H20 ACTS AS AN OXIDISING AGENT WHY?
Answer» 10.C+H2O=CO+H2 . H20 ACTS AS AN OXIDISING AGENT WHY?

Discussion

40.	Which of the following compounds are oxidized by HIO4?
Answer» Which of the following compounds are oxidized by $H I O_{4} ?$

Discussion

41.	The ratio of the de Broglie wavelengths of an electron of energy 10 eV to that of a person of mass 66 kg travelling at a speed of 100 km/hr, is of the order of,
Answer» The ratio of the de Broglie wavelengths of an electron of energy $10 eV$ to that of a person of mass $66 kg$ travelling at a speed of $100 km/hr$ , is of the order of,

Discussion

42.	Which one of the following is least reactive in a nucleophilic substitution reaction?
Answer» Which one of the following is least reactive in a nucleophilic substitution reaction?

Discussion

43.	What are stimulants ? Give examples and their effects ?
Answer» What are stimulants ? Give examples and their effects ?

Discussion

44.	What is mechanism of reduction of crotonaldehyde with lialh4
Answer» What is mechanism of reduction of crotonaldehyde with lialh4

Discussion

45.	When an electron jumps from L to K shell
Answer» When an electron jumps from L to K shell

45.

When an electron jumps from L to K shell

Answer»

When an electron jumps from L to K shell

Discussion

46.	Draw Fischer projections for the following substitution reactions and choose the correct option:
Answer» Draw Fischer projections for the following substitution reactions and choose the correct option:

Discussion

47.	The equilibrium constant kp for the reaction H2g) + CO2,g) gives H2O(g) CO(g) is 4.0 at 1660^° C. Initially0.80 mole H2, and 0.80 mole CO2 are injected into a 5.0 liter flask. What is the equilibrium concentration of co2
Answer» The equilibrium constant kp for the reaction H2g) + CO2,g) gives H2O(g) CO(g) is 4.0 at 1660^° C. Initially0.80 mole H2, and 0.80 mole CO2 are injected into a 5.0 liter flask. What is the equilibrium concentration of co2

Discussion

48.	Describe the theory associated with the radius of an atom as it (a)gains an electron (b)loses an electron
Answer» Describe the theory associated with the radius of an atom as it (a)gains an electron (b)loses an electron

Discussion

49.	100 ml of H2SO4 solution having molarity 1 M and density 1.5 g/ml is mixed with 400 ml of water .calculate final molarity of H2SO4 solution ,if final density is 1.25 g/ml
Answer» 100 ml of H2SO4 solution having molarity 1 M and density 1.5 g/ml is mixed with 400 ml of water .calculate final molarity of H2SO4 solution ,if final density is 1.25 g/ml

Discussion

50.	Which of the following would result in the formation of strongest π - bond if the molecular axis is X - axis?
Answer» Which of the following would result in the formation of strongest $π$ - bond if the molecular axis is X - axis?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

What happens when P4O6 reacts with boiling water.what are the possible products in different states of P4O6

The absolute configuration of the given compound is:

Which of the following is required in Stephen reaction?

For the reaction at equilbrium: N2O4(g)⇌2NO2(g), the concentration of N2O4 and NO2 at equilibrium are 4.8×10−2 and 1.2×10−2mol/L respectively. The value of Kc for the reaction is:

The ratio of specific charge of an es to that of a proton is

Which of the following is not a linear molecule?

Number of orbitals in ' h ' sub - shell is ______________ .A. 11B. 15C. 17D. 19

Which of the following is the correct order of increasing field strength of ligands to form coordination compounds ?

In the formation of diazonium salt by reacting aliphatic amine with NaNO2 and HX, the electrophile is

Is cyclobutadiene aromatic , anti aromatic or non aromatic?

40.Why bond order of CO+ is 3.5, explain with reason?

The reduction potential of hydrogen electrode at pH=7 will be (1) 0 V (2) -0.414 V (3) + 0.414 V (4) 0.72 V

40.Phenol is less acidic than?1)ehanol2)methanol3)o-nitrophenol4)p-nitrophenol

Which is not true regarding rayon?

Which of the following compounds will give only one isomer on monochlorination (i)Isopentane (ii) Neopetane (iii) Cyclopentane (iv) 2,2,3,3 - tetramethyl butane (v) n-butane

Ionic radii of

6. How much energy in joules must be needed to convert all the atoms of sodium to sodium ions presentin 2.3 mg of sodium vapours ? lonisation energy of sodium is 495kj/mol:(1) 495×10-4 kJ/mhol. (2) 395×10-4 kJ/mol.(3) 495 k.J/mol.(4) 300kJ/mol.

Which of the following set of the reagent is used to convert nitrobenzene to 1,3 - dibromobenzene?

XeF2 is isostructural with-

49 Arrange in decreasing order of reactivity towards aromatic electrophilic substitution reaction. 1. C6h5ch3 2. C6h5c2h5 3. C6h5c(ch3) 4. C6h5ch (ch3)2

One kg of an ideal gas (gas constant, R=400 J/kgK; specific heat at constant volume, cv=1000 J/kgK) at 1 bar, and 300 K is contained in sealed rigid cylinder. During an adiabatic process, 100 kJ of work is done on the system by a stirrer. The increase in entropy of the system is..... J/K 287.682

33 define salt bridge

Different between ortha nitrophenol and para nitrophenol

At certain temperture a gass is present in a vessel of 20l at 4atm. Give the volume of gass if the pressure is incresed (1)-to 6atm (2)- by 6 atm

What is temperature coefficient of resistance?

at what temp, hydrogen molecules will have same average speed as nitrogen molecules at 47C? A. 32.2 K B. 50 K C. 22.86 K D. 14.84 K

Sublimation can’t be used for the purification of

which of the following show optical activity?(a)n-butyl amine (b)isobutyl amine (c)sec-butyl amine (d) t-Butyl amine

Expand (x+6)(x+8) using suitable identity.

When propan-1-ol is dehydrated, the productobtained is again hydrated and further oxidisedtoform a compound. The compound is(1) Propargyl alcohol(2) Propanone(3) Ethylene -1,2-diol(4) Propane-1, 2-diol

The crystal structure of CoO would be expected to be similar to which of the following crystals? (Radii:Co2+=0.072 nm, O2−=0.140 nm)

Q 12/31 An electron is moving in 3rd orbit ofHydrogen atom. The frequency of moving electron is

A radioactive sample is undergoing α−decay. At any time t1, its activity is A and at another time t2, the activity is A/5. What is the average life-time for the sample?

The rms velocity of hydrogen is √7 times the rms velocity of nitrogen. If T is the temperature of the gas, then:

Match the following:(i) Biodegradeable polymer(p) 3-hydroxybutanoic acid(ii) Bakelite(q) Phenol(iii) Neoprene(r) 2-chlorobuta-1,3-diene(iv) Glyptal(s) phthalic acid

22 Ionisation constant of AOH and BOH base are kb1 and kb2. Their relationship is pkb1

10.C+H2O=CO+H2 . H20 ACTS AS AN OXIDISING AGENT WHY?

Which of the following compounds are oxidized by HIO4?

The ratio of the de Broglie wavelengths of an electron of energy 10 eV to that of a person of mass 66 kg travelling at a speed of 100 km/hr, is of the order of,

Which one of the following is least reactive in a nucleophilic substitution reaction?

What are stimulants ? Give examples and their effects ?

What is mechanism of reduction of crotonaldehyde with lialh4

When an electron jumps from L to K shell

Draw Fischer projections for the following substitution reactions and choose the correct option:

The equilibrium constant kp for the reaction H2g) + CO2,g) gives H2O(g) CO(g) is 4.0 at 1660^° C. Initially0.80 mole H2, and 0.80 mole CO2 are injected into a 5.0 liter flask. What is the equilibrium concentration of co2

Describe the theory associated with the radius of an atom as it (a)gains an electron (b)loses an electron

100 ml of H2SO4 solution having molarity 1 M and density 1.5 g/ml is mixed with 400 ml of water .calculate final molarity of H2SO4 solution ,if final density is 1.25 g/ml

Which of the following would result in the formation of strongest π - bond if the molecular axis is X - axis?