46295 + Interview Questions in Chemistry

1.	Solvay process is used for the manufacture of
Answer» Solvay process is used for the manufacture of

Discussion

2.	What is the purest form of carbon? Fullerene or diamond?
Answer» What is the purest form of carbon? Fullerene or diamond?

2.

What is the purest form of carbon? Fullerene or diamond?

Answer»

What is the purest form of carbon?

Fullerene or diamond?

Discussion

3.	The complex showing a spin only magnetic moment of 2.82 BM is:
Answer» The complex showing a spin only magnetic moment of 2.82 BM is:

Discussion

4.	Power alcohol used in automobile fuel is
Answer» Power alcohol used in automobile fuel is

Discussion

5.	The decreasing order of basicityof the following amines is:
Answer» The decreasing order of basicityof the following amines is:

Discussion

6.	Which of the following is the weakest acid, in the following compounds?
Answer» Which of the following is the weakest acid, in the following compounds?

Discussion

7.	A sample of milk splits after 60 min. at 300K and after 40 min at 400K when the population of lactobacillus acidophilus in it doubles . The activation energy (in kJ/mol) for this process is closest to (Given, R=8.3 J mol−1K−1),ln(23)=0.4,e−3=4.0)
Answer» A sample of milk splits after 60 min. at 300K and after 40 min at 400K when the population of lactobacillus acidophilus in it doubles . The activation energy (in kJ/mol) for this process is closest to (Given, $R = 8.3 {J mol}^{- 1} K^{- 1}), ln (\frac{2}{3}) = 0.4, e^{- 3} = 4.0)$

Discussion

8.	Which of the following solutions shows negative deviation from Raoult's law?
Answer» Which of the following solutions shows negative deviation from Raoult's law?

Discussion

9.	Question 21 Which of the following statements concerning the quantum numbers are correct ? (a) The angular momentum quantum number determines the three-dimensional shape of the orbital (b) The principal quantum number determines the orientation and energy of the orbital (c) Magnetic quantum number determines the size of the orbital. (d). Spin quantum number of an electron determines the orientation of the spin of electron relative to the chosen axis.
Answer» Question 21 Which of the following statements concerning the quantum numbers are correct ? (a) The angular momentum quantum number determines the three-dimensional shape of the orbital (b) The principal quantum number determines the orientation and energy of the orbital (c) Magnetic quantum number determines the size of the orbital. (d). Spin quantum number of an electron determines the orientation of the spin of electron relative to the chosen axis.

9.

Question 21 Which of the following statements concerning the quantum numbers are correct ? (a) The angular momentum quantum number determines the three-dimensional shape of the orbital (b) The principal quantum number determines the orientation and energy of the orbital (c) Magnetic quantum number determines the size of the orbital. (d). Spin quantum number of an electron determines the orientation of the spin of electron relative to the chosen axis.

Answer»

Question 21

Which of the following statements concerning the quantum numbers are correct ?

(a) The angular momentum quantum number determines the three-dimensional shape of the orbital

(b) The principal quantum number determines the orientation and energy of the orbital

(c) Magnetic quantum number determines the size of the orbital.

(d). Spin quantum number of an electron determines the orientation of the spin of electron relative to the chosen axis.

Discussion

10.	The correct representation for the following bond line structure is :
Answer» The correct representation for the following bond line structure is :

Discussion

11.	In the above reaction A and B will respectively be :
Answer» In the above reaction A and B will respectively be :

Discussion

12.	'a' moles of PCl5 are heated in a closed container till equilibrium is established. PCl5(g)⇋PCl3(g)+Cl2(g) is maintianed at a pressure of P atm. If 'b' moles of PCl5 dissociates at equilibrium, then:
Answer» 'a' moles of $P C l_{5}$ are heated in a closed container till equilibrium is established. $P C l_{5} (g) ⇋ P C l_{3} (g) + C l_{2} (g)$ is maintianed at a pressure of P atm. If 'b' moles of $P C l_{5}$ dissociates at equilibrium, then:

Discussion

13.	Which of the following is best method for making isopropyl methyl ether?
Answer» Which of the following is best method for making isopropyl methyl ether?

Discussion

14.	Addition of HCl to vinyl chloride gives 1, 1-dichloroethane because of
Answer» Addition of $H C l$ to vinyl chloride gives 1, 1-dichloroethane because of

14.

Addition of HCl to vinyl chloride gives 1, 1-dichloroethane because of

Answer»

Addition of $H C l$ to vinyl chloride gives 1, 1-dichloroethane because of

Discussion

15.	Which of the following equations is a balanced one?
Answer» Which of the following equations is a balanced one?

Discussion

16.	Which of the following is the formula of a staturated aliphatic aldehyde?
Answer» Which of the following is the formula of a staturated aliphatic aldehyde?

Discussion

17.	The E∘ in the given diagram is
Answer» The $E^{\circ}$ in the given diagram is

17.

The E∘ in the given diagram is

Answer»

The $E^{\circ}$ in the given diagram is

Discussion

18.	The correct order of acidities of the following is:
Answer» The correct order of acidities of the following is:

18.

The correct order of acidities of the following is:

Answer»

The correct order of acidities of the following is:

Discussion

19.	Carbon disulphide, CS2, can be made from by-product SO2. The overall reaction is 5C+2SO2→CS2+4CO How much CS2 in kg can be produced from 440 kg of waste SO2 with 60 kg of coke if the SO2 conversion is 80%
Answer» Carbon disulphide, $C S_{2},$ can be made from by-product $S O_{2} .$ The overall reaction is $5 C + 2 S O_{2} \to C S_{2} + 4 C O$ How much $C S_{2}$ in kg can be produced from 440 kg of waste $S O_{2}$ with 60 kg of coke if the $S O_{2}$ conversion is 80%

Discussion

20.	Choose the correct reactions:
Answer» Choose the correct reactions:

Discussion

21.	Which of the following reactions depicts the reducing action of hydrogen peroxide ?
Answer» Which of the following reactions depicts the reducing action of hydrogen peroxide ?

Discussion

22.	Which solution will show the maximum vapour pressure at 300 K?
Answer» Which solution will show the maximum vapour pressure at 300 K?

Discussion

23.	An isotone of Ge7632 is:
Answer» An isotone of $G e_{32}^{76}$ is:

Discussion

24.	Consider the following reaction the major product is expected to be:
Answer» Consider the following reaction the major product is expected to be:

Discussion

25.	II. In the following reaction sequence, the compound J is an intermediate. The compound K is
Answer» II. In the following reaction sequence, the compound J is an intermediate. The compound K is

25.

II. In the following reaction sequence, the compound J is an intermediate. The compound K is

Answer»

II. In the following reaction sequence, the compound J is an intermediate.

The compound K is

Discussion

26.	How are XeO3 and XeO4 prepared?
Answer» How are $X e O_{3}$ and $X e O_{4}$ prepared?

Discussion

27.	For a thermodynamically spontaneous process the change in free energy is __.
Answer» For a thermodynamically spontaneous process the change in free energy is __.

Discussion

28.	Which of the following compound is non-aromatic?
Answer» Which of the following compound is non-aromatic?

Discussion

29.	The given diagram indicates the energy level of a certain atom. When an electron moves from 2E level to E level, a photon of wavelength λ is emitted. The wavelength of photon emitted during its transition from 4E3 level to E level is: ____ 2E ____4E3 ____ E
Answer» The given diagram indicates the energy level of a certain atom. When an electron moves from 2E level to E level, a photon of wavelength $λ$ is emitted. The wavelength of photon emitted during its transition from $\frac{4 E}{3}$ level to E level is: ____ $2 E$ ____ $\frac{4 E}{3}$ ____ $E$

Discussion

30.	The total energy of an electron in the first excited state of the hydrogen atom is about -3.4 eV. What is the kinetic energy and potential energy of the electron in this state?
Answer» The total energy of an electron in the first excited state of the hydrogen atom is about -3.4 eV. What is the kinetic energy and potential energy of the electron in this state?

Discussion

31.	What is a carburet?
Answer» What is a carburet?

Discussion

32.	5 types of proteins and its functions (inpoints)
Answer» 5 types of proteins and its functions (inpoints)

Discussion

33.	Why PCl5 is more covalent than PCl3?
Answer» Why PCl₅ is more covalent than PCl₃?

Discussion

34.	When a coordinate compound CoCl3. 6NH3 is mixed with AgNO3, 3 moles of AgCl are pre mole of the compound. Write structural formula of the complex and name. And please explain how to solve such type of problem
Answer» When a coordinate compound CoCl3. 6NH3 is mixed with AgNO3, 3 moles of AgCl are pre mole of the compound. Write structural formula of the complex and name. And please explain how to solve such type of problem

Discussion

35.	The liquids boil at lower temperature at high altitude because:
Answer» The liquids boil at lower temperature at high altitude because:

Discussion

36.	Aluminium crystallizes in an FCC structure. Atomic radius of the metal is 125 pm. What is the length of the side of the unit cell of the metal?
Answer» Aluminium crystallizes in an FCC structure. Atomic radius of the metal is 125 pm. What is the length of the side of the unit cell of the metal?

Discussion

37.	What is the concept of range order ?
Answer» What is the concept of range order ?

Discussion

38.	Write the names and structures of the monomers of the following polymers: (i)Nylon -6 (ii) Novolac (iii) Buna-N
Answer» Write the names and structures of the monomers of the following polymers: (i)Nylon -6 (ii) Novolac (iii) Buna-N

Discussion

39.	What are the rules for writing significant figures ?
Answer» What are the rules for writing significant figures ?

Discussion

40.	Which of the following is least stable carbanion
Answer» Which of the following is least stable carbanion

Discussion

41.	In which of the following has the oxidation number of oxygen been arranged in increasing order?
Answer» In which of the following has the oxidation number of oxygen been arranged in increasing order?

Discussion

42.	A compound contains 3.2% by mass of oxygen. The minimum molecular weight of the compound is:
Answer» A compound contains 3.2% by mass of oxygen. The minimum molecular weight of the compound is:

Discussion

43.	Would you expect the second electron gain enthalpy of O as positive, more negative or less negative than the first? Justify your answer.
Answer» Would you expect the second electron gain enthalpy of O as positive, more negative or less negative than the first? Justify your answer.

Discussion

44.	Energy of 4th Bohr orbit of He+ is x, then calculate the energy of 4th excited state of Li2+ in terms of x.
Answer» Energy of $4^{t h}$ Bohr orbit of $H e^{+}$ is x, then calculate the energy of $4^{t h}$ excited state of $L i^{2 +}$ in terms of x.

Discussion

45.	Which of the following is TRUE for carbanion?
Answer» Which of the following is TRUE for carbanion?

Discussion

46.	If a light of frequency 4×1016 Hz emits photoelectrons with double the maximum kinetic energy as emitted by a light of frequency 2.5×1016 Hz from the same metal surface, what is the threshold frequency (ν0) of the metal?
Answer» If a light of frequency $4 \times 10^{16} Hz$ emits photoelectrons with double the maximum kinetic energy as emitted by a light of frequency $2.5 \times 10^{16} Hz$ from the same metal surface, what is the threshold frequency $(ν_{0})$ of the metal?

Discussion

47.	Find the volume ratio of the reactant O2 and NO gases needed respectively to produce nitrogen dioxide gas? 2NO(g)+O2(g)→2NO2(g)
Answer» Find the volume ratio of the reactant $O_{2}$ and $N O$ gases needed respectively to produce nitrogen dioxide gas? $2 N O (g) + O_{2} (g) \to 2 N O_{2} (g)$

Discussion

48.	Calculate the pOH of a solution at 25∘C that contains 1×10−10M of hydronium ions, i.e., H3O+;
Answer» Calculate the $p O H$ of a solution at $25^{\circ} C$ that contains $1 \times 10^{- 10} M$ of hydronium ions, i.e., $H_{3} O^{+};$

Discussion

49.	The most contributing tautomeric enol form of MeCOCH2CO2Et is:
Answer» The most contributing tautomeric enol form of $M e C O C H_{2} C O_{2} E t$ is:

Discussion

50.	How many litres of oxygen measured at STP are required for complete combustion of 39 gms of liquid C6H6?
Answer» How many litres of oxygen measured at STP are required for complete combustion of 39 gms of liquid $C_{6} H_{6}$ ?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Solvay process is used for the manufacture of

What is the purest form of carbon? Fullerene or diamond?

The complex showing a spin only magnetic moment of 2.82 BM is:

Power alcohol used in automobile fuel is

The decreasing order of basicityof the following amines is:

Which of the following is the weakest acid, in the following compounds?

A sample of milk splits after 60 min. at 300K and after 40 min at 400K when the population of lactobacillus acidophilus in it doubles . The activation energy (in kJ/mol) for this process is closest to (Given, R=8.3 J mol−1K−1),ln(23)=0.4,e−3=4.0)

Which of the following solutions shows negative deviation from Raoult's law?

The correct representation for the following bond line structure is :

In the above reaction A and B will respectively be :

'a' moles of PCl5 are heated in a closed container till equilibrium is established. PCl5(g)⇋PCl3(g)+Cl2(g) is maintianed at a pressure of P atm. If 'b' moles of PCl5 dissociates at equilibrium, then:

Which of the following is best method for making isopropyl methyl ether?

Addition of HCl to vinyl chloride gives 1, 1-dichloroethane because of

Which of the following equations is a balanced one?

Which of the following is the formula of a staturated aliphatic aldehyde?

The E∘ in the given diagram is

The correct order of acidities of the following is:

Carbon disulphide, CS2, can be made from by-product SO2. The overall reaction is 5C+2SO2→CS2+4CO How much CS2 in kg can be produced from 440 kg of waste SO2 with 60 kg of coke if the SO2 conversion is 80%

Choose the correct reactions:

Which of the following reactions depicts the reducing action of hydrogen peroxide ?

Which solution will show the maximum vapour pressure at 300 K?

An isotone of Ge7632 is:

Consider the following reaction the major product is expected to be:

II. In the following reaction sequence, the compound J is an intermediate. The compound K is

How are XeO3 and XeO4 prepared?

For a thermodynamically spontaneous process the change in free energy is __.

Which of the following compound is non-aromatic?

The given diagram indicates the energy level of a certain atom. When an electron moves from 2E level to E level, a photon of wavelength λ is emitted. The wavelength of photon emitted during its transition from 4E3 level to E level is: ____ 2E ____4E3 ____ E

The total energy of an electron in the first excited state of the hydrogen atom is about -3.4 eV. What is the kinetic energy and potential energy of the electron in this state?

What is a carburet?

5 types of proteins and its functions (inpoints)

Why PCl​​​​5 is more covalent than PCl​​​​3?

When a coordinate compound CoCl3. 6NH3 is mixed with AgNO3, 3 moles of AgCl are pre mole of the compound. Write structural formula of the complex and name. And please explain how to solve such type of problem

The liquids boil at lower temperature at high altitude because:

Aluminium crystallizes in an FCC structure. Atomic radius of the metal is 125 pm. What is the length of the side of the unit cell of the metal?

What is the concept of range order ?

Write the names and structures of the monomers of the following polymers: (i)Nylon -6 (ii) Novolac (iii) Buna-N

What are the rules for writing significant figures ?

Which of the following is least stable carbanion

In which of the following has the oxidation number of oxygen been arranged in increasing order?

A compound contains 3.2% by mass of oxygen. The minimum molecular weight of the compound is:

Would you expect the second electron gain enthalpy of O as positive, more negative or less negative than the first? Justify your answer.

Energy of 4th Bohr orbit of He+ is x, then calculate the energy of 4th excited state of Li2+ in terms of x.

Which of the following is TRUE for carbanion?

If a light of frequency 4×1016 Hz emits photoelectrons with double the maximum kinetic energy as emitted by a light of frequency 2.5×1016 Hz from the same metal surface, what is the threshold frequency (ν0) of the metal?

Find the volume ratio of the reactant O2 and NO gases needed respectively to produce nitrogen dioxide gas? 2NO(g)+O2(g)→2NO2(g)

Calculate the pOH of a solution at 25∘C that contains 1×10−10M of hydronium ions, i.e., H3O+;

The most contributing tautomeric enol form of MeCOCH2CO2Et is:

How many litres of oxygen measured at STP are required for complete combustion of 39 gms of liquid C6H6?

The given diagram indicates the energy level of a certain atom. When an electron moves from 2E level to E level, a photon of wavelength λ is emitted. The wavelength of photon emitted during its transition from 4E3 level to E level is: 2E 4E3 E

Why PCl5 is more covalent than PCl3?