46295 + Interview Questions in Chemistry

1.	Which of the following will increase with increase in temperature?
Answer» Which of the following will increase with increase in temperature?

Discussion

2.	Which of the following is an example of a solution with a liquid solute and solid solvent?
Answer» Which of the following is an example of a solution with a liquid solute and solid solvent?

Discussion

3.	Square planar complexes of the type MABxL (where A, B, x and L are unidentate) show
Answer» Square planar complexes of the type MABxL (where A, B, x and L are unidentate) show

Discussion

4.	Two nuclei have mass numbers in the ratio 1:4 what is the ratio of their nuclei densities
Answer» Two nuclei have mass numbers in the ratio 1:4 what is the ratio of their nuclei densities

Discussion

5.	The oxidation number of sulphur in S8,S2F2 and H2S respectively are
Answer» The oxidation number of sulphur in $S_{8}, S_{2} F_{2} a n d H_{2} S$ respectively are

Discussion

6.	Which of the following would undergo aldol condensation?
Answer» Which of the following would undergo aldol condensation?

Discussion

7.	Which of the following are correct names according to IUPAC rules?
Answer» Which of the following are correct names according to IUPAC rules?

Discussion

8.	The shape of which of the following molecules will not be distorted?
Answer» The shape of which of the following molecules will not be distorted?

Discussion

9.	Which of the following is a natural polymer?
Answer» Which of the following is a natural polymer?

Discussion

10.	Predict the change in internal energy for an isolated system at constant volume.
Answer» Predict the change in internal energy for an isolated system at constant volume.

Discussion

11.	How does the branching of hydrocarbon chain of synthetic detergents affect their biodegradability?
Answer» How does the branching of hydrocarbon chain of synthetic detergents affect their biodegradability?

Discussion

12.	What is the value of the change in internal energy at 1 atm in the following process? H2O(l,323 K)→H2O(g,423 K) Given : Cv,m(H2O,1)=75.0 JK−1;Cp,m(H2O,g)=33.314JK−1mol−1;ΔHvapat373K=40.7kJ/mol
Answer» What is the value of the change in internal energy at 1 atm in the following process? $H_{2} O (l, 323 K) \to H_{2} O (g, 423 K)$ Given : $C_{v, m} (H_{2} O, 1) = 75.0 J K^{- 1}; C_{p, m} (H_{2} O, g) = 33.314 J K^{- 1} m o l^{- 1}; Δ H_{v a p} at 373 K = 40.7 k J / m o l$

Discussion

13.	Which amino acid has more than one stereogenic center?
Answer» Which amino acid has more than one stereogenic center?

Discussion

14.	How can you separate alumina from silica in a bauxite are associated with silica? Give equatiions, if any.
Answer» How can you separate alumina from silica in a bauxite are associated with silica? Give equatiions, if any.

Discussion

15.	Differentiate between rubbers and plastics on the basis of intermolecular forces.
Answer» Differentiate between rubbers and plastics on the basis of intermolecular forces.

Discussion

16.	Assertion (A) When a solution is separated from the pure solvent by a semipermeable membrane, the solvent molecules pass through it from pure solvent side to the solution side. Reason (R) Diffusion of solvent occurs from a region of high concentration solution to a region of low concentration solution.
Answer» Assertion (A) When a solution is separated from the pure solvent by a semipermeable membrane, the solvent molecules pass through it from pure solvent side to the solution side. Reason (R) Diffusion of solvent occurs from a region of high concentration solution to a region of low concentration solution.

Discussion

17.	Which of the following relations do not represent the correct relation of the potential energy of an electron in the nth shell of an hydrogen atom?
Answer» Which of the following relations do not represent the correct relation of the potential energy of an electron in the $n^{t h}$ shell of an hydrogen atom?

Discussion

18.	Name the organic acid which has two hydrogen and two carbon atoms.
Answer» Name the organic acid which has two hydrogen and two carbon atoms.

Discussion

19.	Choose the correct order of acidity.
Answer» Choose the correct order of acidity.

Discussion

20.	If the critical temperature of a gas is 27 ∘C then it's inversion temperature will be:
Answer» If the critical temperature of a gas is $27^{\circ} C$ then it's inversion temperature will be:

Discussion

21.	The correct order of total number of nodes of atomic orbitals is:
Answer» The correct order of total number of nodes of atomic orbitals is:

Discussion

22.	The order of the increasing basicity of the compounds is as follows.
Answer» The order of the increasing basicity of the compounds is as follows.

Discussion

23.	A 1 g sample of KClO3 was heated under such conditions that a part of it decomposed according to the equation: (i) 2KClO3=2KCl+3O2 and the remaining underwent change according to the equation (ii) 4KClO3=3KClO4+KCl If the amount of O2 evolved was 146.8 mL at STP, calculate the mass of KClO4 produced.
Answer» A 1 g sample of $K C l O_{3}$ was heated under such conditions that a part of it decomposed according to the equation: (i) $2 K C l O_{3} = 2 K C l + 3 O_{2}$ and the remaining underwent change according to the equation (ii) $4 K C l O_{3} = 3 K C l O_{4} + K C l$ If the amount of $O_{2}$ evolved was 146.8 mL at STP, calculate the mass of $K C l O_{4}$ produced.

Discussion

24.	I am confused about the concept of normality and how to calculate and use it.what is meant by equivalent weight?
Answer» I am confused about the concept of normality and how to calculate and use it.what is meant by equivalent weight?

Discussion

25.	How much heat will be required at constant pressure to form 1.28 kg of CaC2 from CaO(s) and C(s)? Given: ΔrH0(CaO,s) = −152 kcal/mol. ΔrH0(CaC2,s) = −14 kcal/mol. ΔrH0(CO,g) = −26 kcal/mol.
Answer» How much heat will be required at constant pressure to form $1.28 k g$ of $C a C_{2}$ from $C a O (s)$ and $C (s)$ ? Given: $Δ_{r} H^{0} (C a O, s) = - 152 k c a l / m o l$ . $Δ_{r} H^{0} (C a C_{2}, s) = - 14 k c a l / m o l$ . $Δ_{r} H^{0} (C O, g) = - 26 k c a l / m o l$ .

25.

How much heat will be required at constant pressure to form 1.28 kg of CaC2 from CaO(s) and C(s)? Given: ΔrH0(CaO,s) = −152 kcal/mol. ΔrH0(CaC2,s) = −14 kcal/mol. ΔrH0(CO,g) = −26 kcal/mol.

Answer»

How much heat will be required at constant pressure to form $1.28 k g$ of $C a C_{2}$ from $C a O (s)$ and $C (s)$ ?

Given:

$Δ_{r} H^{0} (C a O, s) = - 152 k c a l / m o l$ .

$Δ_{r} H^{0} (C a C_{2}, s) = - 14 k c a l / m o l$ .

$Δ_{r} H^{0} (C O, g) = - 26 k c a l / m o l$ .

Discussion

26.	Though the electron is filled in "f" orbital in lanthanide and actinide there is some difference in the properties of the two. Comment.
Answer» Though the electron is filled in "f" orbital in lanthanide and actinide there is some difference in the properties of the two. Comment.

Discussion

27.	Most ionic compounds have _____
Answer» Most ionic compounds have _____

Discussion

28.	Which among the following has the highest dipole moment?
Answer» Which among the following has the highest dipole moment?

Discussion

29.	Why is bromine more selective in the site of attack as compared to chlorine when it reacts with alkanes?
Answer» Why is bromine more selective in the site of attack as compared to chlorine when it reacts with alkanes?

Discussion

30.	Consider a system consisting of one mole of an ideal diatomic gas in a container with piston. What is the temperature change of the gas, if q = 50.0 J and W = -100.0 J?
Answer» Consider a system consisting of one mole of an ideal diatomic gas in a container with piston. What is the temperature change of the gas, if q = 50.0 J and W = -100.0 J?

Discussion

31.	4.6*1022 atoms of an element weighs 13.8g.Atomic mass of element is?(need the answer with a detailed explanation)
Answer» 4.6*10²² atoms of an element weighs 13.8g.Atomic mass of element is?(need the answer with a detailed explanation)

Discussion

32.	What is diagonal relationship? Elements of which two periods show diagonal relationship?
Answer» What is diagonal relationship? Elements of which two periods show diagonal relationship?

Discussion

33.	Q. For the reaction B2H6(g) + 3O2(g) - - - - - > B2O3 + 3H2O dU=-2143.2kj Find dH
Answer» Q. For the reaction B₂H₆(g) + 3O₂(g) - - - - - > B2O3 + 3H2O dU=-2143.2kj Find dH

Discussion

34.	Which of the following are TRUE for ZnS type and CaF2 type structure?
Answer» Which of the following are TRUE for $Z n S$ type and $C a F_{2}$ type structure?

Discussion

35.	Why doesn't isobutyraldehyde undergo aldol condensation when it has an alpha hydrogen
Answer» Why doesn't isobutyraldehyde undergo aldol condensation when it has an alpha hydrogen

Discussion

36.	What is Light energy
Answer» What is Light energy

Discussion

37.	Which of the following has a octet/duplet electronic configuration?
Answer» Which of the following has a octet/duplet electronic configuration?

Discussion

38.	QUESTION 14.5 What do you understand by the term glycosidic linkage?
Answer» QUESTION 14.5 What do you understand by the term glycosidic linkage?

38.

QUESTION 14.5 What do you understand by the term glycosidic linkage?

Answer»

QUESTION 14.5

What do you understand by the term glycosidic linkage?

Discussion

39.	The reduction product of ethyl-3-oxobutanoate by NaBH4 in methanol is
Answer» The reduction product of ethyl-3-oxobutanoate by $N a B H_{4}$ in methanol is

Discussion

40.	Sir is it enough to read inorganic part from ncert to tackle questions appearing in jee mains
Answer» Sir is it enough to read inorganic part from ncert to tackle questions appearing in jee mains

Discussion

41.	In a 0.2 molal aqueous solution of a weak acid HX, the degree of ionization is 0.3 at room temperature. Taking Kf for water as 1.85 oCm−1, the freezing point of the solution will be nearest to
Answer» In a 0.2 molal aqueous solution of a weak acid HX, the degree of ionization is 0.3 at room temperature. Taking $K_{f}$ for water as $1.85^{o} C m^{- 1}$ , the freezing point of the solution will be nearest to

Discussion

42.	People living at sea level have around 5 million RBCs per cubic millimeter of their blood whereas those living at an altitude of 5,400 m have around 8 million. This is because at high altitude,
Answer» People living at sea level have around 5 million RBCs per cubic millimeter of their blood whereas those living at an altitude of 5,400 m have around 8 million. This is because at high altitude,

Discussion

43.	Molecular mass of HCL
Answer» Molecular mass of HCL

Discussion

44.	Van der waal forces are maximum in? 1 HBr. 2. LiBr 3. LiCl 4. AgBr
Answer» Van der waal forces are maximum in? 1 HBr. 2. LiBr 3. LiCl 4. AgBr

44.

Van der waal forces are maximum in? 1 HBr. 2. LiBr 3. LiCl 4. AgBr

Answer»

Van der waal forces are maximum in?

1 HBr. 2. LiBr 3. LiCl 4. AgBr

Discussion

45.	Four successive members of the first series of the transition metals are listed below. For which one of them the standard potential value has a positive sign a) Fe(Z=26) b) Co(Z=27) c) Ni(Z=28) d) Cu(Z=29)
Answer» Four successive members of the first series of the transition metals are listed below. For which one of them the standard potential value has a positive sign a) Fe(Z=26) b) Co(Z=27) c) Ni(Z=28) d) Cu(Z=29)

45.

Four successive members of the first series of the transition metals are listed below. For which one of them the standard potential value has a positive sign a) Fe(Z=26) b) Co(Z=27) c) Ni(Z=28) d) Cu(Z=29)

Answer»

Four successive members of the first series of the transition metals are listed below. For which one of them the standard potential value has a positive sign

a) Fe(Z=26) b) Co(Z=27) c) Ni(Z=28) d) Cu(Z=29)

Discussion

46.	Identify the type of polymer −A−A−A−A−A−A−
Answer» Identify the type of polymer $- A - A - A - A - A - A -$

46.

Identify the type of polymer −A−A−A−A−A−A−

Answer»

Identify the type of polymer

$- A - A - A - A - A - A -$

Discussion

47.	how to differentiate between aromaticity,anti-aromaticity,non-aromaticity?
Answer» how to differentiate between aromaticity,anti-aromaticity,non-aromaticity?

Discussion

48.	Bravais theory
Answer» Bravais theory

Discussion

49.	What is ionic equilibrium?
Answer» What is ionic equilibrium?

Discussion

50.	Which of the following has maximum no. of unpaired e−
Answer» Which of the following has maximum no. of unpaired $e^{-}$

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Which of the following will increase with increase in temperature?

Which of the following is an example of a solution with a liquid solute and solid solvent?

Square planar complexes of the type MABxL (where A, B, x and L are unidentate) show

Two nuclei have mass numbers in the ratio 1:4 what is the ratio of their nuclei densities

The oxidation number of sulphur in S8,S2F2 and H2S respectively are

Which of the following would undergo aldol condensation?

Which of the following are correct names according to IUPAC rules?

The shape of which of the following molecules will not be distorted?

Which of the following is a natural polymer?

Predict the change in internal energy for an isolated system at constant volume.

How does the branching of hydrocarbon chain of synthetic detergents affect their biodegradability?

What is the value of the change in internal energy at 1 atm in the following process? H2O(l,323 K)→H2O(g,423 K) Given : Cv,m(H2O,1)=75.0 JK−1;Cp,m(H2O,g)=33.314JK−1mol−1;ΔHvapat373K=40.7kJ/mol

Which amino acid has more than one stereogenic center?

How can you separate alumina from silica in a bauxite are associated with silica? Give equatiions, if any.

Differentiate between rubbers and plastics on the basis of intermolecular forces.

Which of the following relations do not represent the correct relation of the potential energy of an electron in the nth shell of an hydrogen atom?

Name the organic acid which has two hydrogen and two carbon atoms.

Choose the correct order of acidity.

If the critical temperature of a gas is 27 ∘C then it's inversion temperature will be:

The correct order of total number of nodes of atomic orbitals is:

The order of the increasing basicity of the compounds is as follows.

I am confused about the concept of normality and how to calculate and use it.what is meant by equivalent weight?

How much heat will be required at constant pressure to form 1.28 kg of CaC2 from CaO(s) and C(s)? Given: ΔrH0(CaO,s) = −152 kcal/mol. ΔrH0(CaC2,s) = −14 kcal/mol. ΔrH0(CO,g) = −26 kcal/mol.

Though the electron is filled in "f" orbital in lanthanide and actinide there is some difference in the properties of the two. Comment.

Most ionic compounds have _____

Which among the following has the highest dipole moment?

Why is bromine more selective in the site of attack as compared to chlorine when it reacts with alkanes?

Consider a system consisting of one mole of an ideal diatomic gas in a container with piston. What is the temperature change of the gas, if q = 50.0 J and W = -100.0 J?

4.6*1022 atoms of an element weighs 13.8g.Atomic mass of element is?(need the answer with a detailed explanation)

What is diagonal relationship? Elements of which two periods show diagonal relationship?

Q. For the reaction B2H6(g) + 3O2(g) - - - - - > B2O3 + 3H2O dU=-2143.2kj Find dH

Which of the following are TRUE for ZnS type and CaF2 type structure?

Why doesn't isobutyraldehyde undergo aldol condensation when it has an alpha hydrogen

What is Light energy

Which of the following has a octet/duplet electronic configuration?

QUESTION 14.5 What do you understand by the term glycosidic linkage?

The reduction product of ethyl-3-oxobutanoate by NaBH4 in methanol is

Sir is it enough to read inorganic part from ncert to tackle questions appearing in jee mains

In a 0.2 molal aqueous solution of a weak acid HX, the degree of ionization is 0.3 at room temperature. Taking Kf for water as 1.85 oCm−1, the freezing point of the solution will be nearest to

People living at sea level have around 5 million RBCs per cubic millimeter of their blood whereas those living at an altitude of 5,400 m have around 8 million. This is because at high altitude,

Molecular mass of HCL

Van der waal forces are maximum in? 1 HBr. 2. LiBr 3. LiCl 4. AgBr

Four successive members of the first series of the transition metals are listed below. For which one of them the standard potential value has a positive sign a) Fe(Z=26) b) Co(Z=27) c) Ni(Z=28) d) Cu(Z=29)

Identify the type of polymer −A−A−A−A−A−A−

how to differentiate between aromaticity,anti-aromaticity,non-aromaticity?

Bravais theory

What is ionic equilibrium?

Which of the following has maximum no. of unpaired e−