46295 + Interview Questions in Chemistry

1.	56. C-C bond is longest A.alpha B.Beta C.gamma D.equal bond length.
Answer» 56. C-C bond is longest A.alpha B.Beta C.gamma D.equal bond length.

Discussion

2.	The boiling point of two solvents are equal If the Lv for solvent A is 7kJ/ g the ratio of Kf values ( molecular weight of two solvents are relates as Ma: Ma= 1:2) will be
Answer» The boiling point of two solvents are equal If the Lv for solvent A is 7kJ/ g the ratio of Kf values ( molecular weight of two solvents are relates as Ma: Ma= 1:2) will be

Discussion

3.	One of the semicircular Ring of radius R has charge minus Q by the other hand has + Q the ring is placed in xy plane with a uniform electric field exist is equal to in not into ICAP find the work done to be done by the external agent to rotate the ring about Z Axis by 90 degrees clockwise direction
Answer» One of the semicircular Ring of radius R has charge minus Q by the other hand has + Q the ring is placed in xy plane with a uniform electric field exist is equal to in not into ICAP find the work done to be done by the external agent to rotate the ring about Z Axis by 90 degrees clockwise direction

Discussion

4.	5.Among cyclopropyl carbocation and aromatic carbocation which will be more stable and why?
Answer» 5.Among cyclopropyl carbocation and aromatic carbocation which will be more stable and why?

Discussion

5.	How to find if the function is onto
Answer» How to find if the function is onto

Discussion

6.	what are the types of rate of the reaction
Answer» what are the types of rate of the reaction

Discussion

7.	6. Which of the following will give maximum numbers number of isomers and how A) [Ni(C2O4)(en)2]cl2 B) [Cr(SCN)2(NH3)4]Cl
Answer» 6. Which of the following will give maximum numbers number of isomers and how A) [Ni(C2O4)(en)2]cl2 B) [Cr(SCN)2(NH3)4]Cl

Discussion

8.	Let A and B be finite sets containing m and n elements respectively. The number of relations that can bedefined from A to B is
Answer» Let A and B be finite sets containing m and n elements respectively. The number of relations that can bedefined from A to B is

Discussion

9.	in which of the following element +3 oxidation state is more stable than +5a] P b] As c] N d] Bi
Answer» in which of the following element +3 oxidation state is more stable than +5 a] P b] As c] N d] Bi

Discussion

10.	Nylon - 6, 6 is
Answer» Nylon - 6, 6 is

Discussion

11.	The standard reduction potentials of Cu2+/Cu and Cu2+/Cu+ are 0.337 V and 0.153 V respectively. The standard electrode potential of Cu+/Cu half-cell is:
Answer» The standard reduction potentials of $C u^{2 +} / C u$ and $C u^{2 +} / C u^{+}$ are $0.337 V$ and $0.153 V$ respectively. The standard electrode potential of $C u^{+} / C u$ half-cell is:

Discussion

12.	Which of the following statement is true ? 1) In metal carbonyl complexes dC–O increases compared to that in CO-molecule (2) The pair of compounds \lbrack Cr(H2O)6\rbrack Cl3 and \lbrack CrCl3(H2O)3\rbrack 3H2O show hydrate isomerism (3) dz2 orbital of central metal atom/ion is used in sp2 hybridisation (4) Facial and meridional isomer associated with \lbrack Ma3b3\rbrack^{n\pm} type complex compound are optically active
Answer» Which of the following statement is true ? 1) In metal carbonyl complexes dC–O increases compared to that in CO-molecule (2) The pair of compounds \lbrack Cr(H2O)6\rbrack Cl3 and \lbrack CrCl3(H2O)3\rbrack 3H2O show hydrate isomerism (3) dz2 orbital of central metal atom/ion is used in sp2 hybridisation (4) Facial and meridional isomer associated with \lbrack Ma3b3\rbrack^{n\pm} type complex compound are optically active

Discussion

13.	Which one among the following resonating structures in not correct?
Answer» Which one among the following resonating structures in not correct?

Discussion

14.	State the laws of chemical combination and define each?
Answer» State the laws of chemical combination and define each?

Discussion

15.	Arrange the following carbocations in decreasing order of stability
Answer» Arrange the following carbocations in decreasing order of stability

Discussion

16.	O2 undergoes photochemical dissociation into one normal oxygen atom and one oxygen atom which is 1.5 eV more energetic than normal. The dissociation of O2 into two normal atoms of oxygen requires 504 kJmol−1. What is the maximum wavelength effective for photochemical dissociation of O2?
Answer» $O_{2}$ undergoes photochemical dissociation into one normal oxygen atom and one oxygen atom which is 1.5 $e V$ more energetic than normal. The dissociation of $O_{2}$ into two normal atoms of oxygen requires 504 $k J m o l^{- 1}$ . What is the maximum wavelength effective for photochemical dissociation of $O_{2}$ ?

Discussion

17.	56 A mixture containing 100 g H and 100 g O is ignited so that water is formed according to the reaction 2H(g)+ O(g) - - - - - > 2HO(g). The volume of water vapours formed at the same temperature and pressure is:- (1) 112.5 litre (2) 6.25 litre (3) 140 litre (4) None of these
Answer» 56 A mixture containing 100 g H and 100 g O is ignited so that water is formed according to the reaction 2H(g)+ O(g) - - - - - > 2HO(g). The volume of water vapours formed at the same temperature and pressure is:- (1) 112.5 litre (2) 6.25 litre (3) 140 litre (4) None of these

Discussion

18.	43. The equivalent weight of H3PO4 in following reaction is:- H3PO4+Ca(OH)2------>CaHPO4+2H2O 1)98 2)49 3)32.66 4)40
Answer» 43. The equivalent weight of H3PO4 in following reaction is:- H3PO4+Ca(OH)2------>CaHPO4+2H2O 1)98 2)49 3)32.66 4)40

Discussion

19.	QUESTION 14.12(i) Define the following as related to proteins. Peptide linkage Define the following as related to proteins. Primary structure Define the following as related to proteins. Denaturation.
Answer» QUESTION 14.12(i) Define the following as related to proteins. Peptide linkage Define the following as related to proteins. Primary structure Define the following as related to proteins. Denaturation.

19.

QUESTION 14.12(i) Define the following as related to proteins. Peptide linkage Define the following as related to proteins. Primary structure Define the following as related to proteins. Denaturation.

Answer»

QUESTION 14.12(i)

Define the following as related to proteins.
Peptide linkage

Define the following as related to proteins.
Primary structure

Define the following as related to proteins.
Denaturation.

Discussion

20.	The crystal field stabilisation energy for CoCl6 is 18000 the cfse for Cocl4
Answer» The crystal field stabilisation energy for CoCl6 is 18000 the cfse for Cocl4

Discussion

21.	What is escape velocity ? Formula and 1-2 problems on formula
Answer» What is escape velocity ? Formula and 1-2 problems on formula

Discussion

22.	Metamers of ethyl propionate are:
Answer» Metamers of ethyl propionate are:

Discussion

23.	A certain mass of Hydrogen is changed to Helium by the process of fusion. The Mass defect in fusion reaction is 0.02866 u. The energy liberated per u is: (Given 1 u = 931 MeV) (1)26.7 MeV(2)6.675 MeV(3)13.35 MeV(4)2.67 MeV
Answer» A certain mass of Hydrogen is changed to Helium by the process of fusion. The Mass defect in fusion reaction is 0.02866 u. The energy liberated per u is: (Given 1 u = 931 MeV) (1)26.7 MeV(2)6.675 MeV(3)13.35 MeV(4)2.67 MeV

Discussion

24.	27. Is this true that only organic compounds have intramolecular H-bonds ?
Answer» 27. Is this true that only organic compounds have intramolecular H-bonds ?

Discussion

25.	15. How does bond order and magnetic moment decrease in O_2- to O_2^{2-} and CO^+ to CO??
Answer» 15. How does bond order and magnetic moment decrease in O_2- to O_2^{2-} and CO^+ to CO??

Discussion

26.	Draw the energy profile diagram of SN1 reaction.
Answer» Draw the energy profile diagram of SN1 reaction.

Discussion

27.	Is a cyclic compound only planar when all of its atoms of the ring are sp^2 hybridised
Answer» Is a cyclic compound only planar when all of its atoms of the ring are sp^2 hybridised

Discussion

28.	1Lof }CO_2 is passed over hot coke. When the } olume of reaction mixture} becomes }1.4L , the } composition of reaction mixture is-
Answer» 1Lof }CO_2 is passed over hot coke. When the } olume of reaction mixture} becomes }1.4L , the } composition of reaction mixture is-

Discussion

29.	For Cr+ ion, how many electrons can have n + l + \| m \| =4, with clockwise spin?
Answer» For $C r^{+}$ ion, how many electrons can have n + l + \| m \| =4, with clockwise spin?

Discussion

30.	It requires 40 mL of 1 M Ce4+ to titrate 20 mL of 1 M Sn2+toSn4+. What is the magnitude of the oxidation state of cerium in the product?
Answer» It requires $40 mL$ of $1 M C e^{4 +}$ to titrate $20 mL$ of $1 M$ $S n^{2 +} to S n^{4 +}$ . What is the magnitude of the oxidation state of cerium in the product?

Discussion

31.	Which of the following is incorrectly matched?1) PVC – Vinyl chloride2) Polythene – Ethane3) Teflon – Tetrafluoroethene4)Cellulose – Glucose
Answer» Which of the following is incorrectly matched? 1) PVC – Vinyl chloride 2) Polythene – Ethane 3) Teflon – Tetrafluoroethene 4)Cellulose – Glucose

Discussion

32.	(3) K2.) K, for PCl,(g)PCl (g)+ CI2(g) is 0.04 at25^° C. The number of moles of PC, required to a3.0 litre flask to obtain Cl2 of concentration 0.15 Mis(2) 2.1 mole(4) 0.45 mole(1) 1.5 mole(3) 6.0 mole
Answer» (3) K2.) K, for PCl,(g)PCl (g)+ CI2(g) is 0.04 at25^° C. The number of moles of PC, required to a3.0 litre flask to obtain Cl2 of concentration 0.15 Mis(2) 2.1 mole(4) 0.45 mole(1) 1.5 mole(3) 6.0 mole

Discussion

33.	Which of the following radial distrubution graphs is the correct representation of a plot of radial probability vs distance from the nucleus corresponding to l=2 for the Hydrogen atom?
Answer» Which of the following radial distrubution graphs is the correct representation of a plot of radial probability vs distance from the nucleus corresponding to $l = 2$ for the Hydrogen atom?

Discussion

34.	32. Bottom of a lake is at 0c and atmospheric temperature is -20C. If 1 cm ice is formed on the surface in 24 h, then time taken to form next 1 cm of ice is (2) 72 h o (4) 96 h (1) 24 h (3) 48 h
Answer» 32. Bottom of a lake is at 0c and atmospheric temperature is -20C. If 1 cm ice is formed on the surface in 24 h, then time taken to form next 1 cm of ice is (2) 72 h o (4) 96 h (1) 24 h (3) 48 h

Discussion

35.	What is the direct relationship between bond order and stability of a compound?
Answer» What is the direct relationship between bond order and stability of a compound?

Discussion

36.	Show the isomers of Heptane(dot structure and brached structure)
Answer» Show the isomers of Heptane(dot structure and brached structure)

Discussion

37.	Predict the products of electrolysis of an aqueous solution of CuBr^2
Answer» Predict the products of electrolysis of an aqueous solution of CuBr^2

Discussion

38.	A 1 : 2 mixture (by mole) of ethanol and propanol exerts a vapour pressure of 250 mm Hg. The vapour pressure of propanol in solution is 200 mm Hg, then the vapour pressure of pure ethanol is (in mm Hg)
Answer» A 1 : 2 mixture (by mole) of ethanol and propanol exerts a vapour pressure of 250 mm Hg. The vapour pressure of propanol in solution is 200 mm Hg, then the vapour pressure of pure ethanol is (in mm Hg)

Discussion

39.	For the reaction A 3B are equal, then percent of B reacted is (1) 10% (3) 40% 2C + D, initial mole of A is twice that of B. If at equilibrium moles of B and (2) 20% (4) 60%
Answer» For the reaction A 3B are equal, then percent of B reacted is (1) 10% (3) 40% 2C + D, initial mole of A is twice that of B. If at equilibrium moles of B and (2) 20% (4) 60%

Discussion

40.	The following data is for a Brayton cycle working on air.Temperature before compression =20∘ CTemperature before expansion =1000∘ CPressure ratio = 7Regenerator effectiveness =100%If the T-s process in the combustion chamber has a linear relation then the mean temperature of heat addition is ______ ∘C728.5
Answer» The following data is for a Brayton cycle working on air. Temperature before compression $= 20^{\circ} C$ Temperature before expansion $= 1000^{\circ} C$ Pressure ratio = 7 Regenerator effectiveness $= 100 %$ If the T-s process in the combustion chamber has a linear relation then the mean temperature of heat addition is ______ $^{\circ} C$ 728.5

Discussion

41.	The correct order of reactivity towards nucleophilic substitution reaction for the given compound is:
Answer» The correct order of reactivity towards nucleophilic substitution reaction for the given compound is:

Discussion

42.	A plate bearing test was carried out on a subgrade using a 76cm diameter rigid plate.A deflection of 1.25mm was caused by a pressure of 0.84kg/cm2. The modulus of subgrade reaction in kg/cm3_____6.81
Answer» A plate bearing test was carried out on a subgrade using a $76 c m$ diameter rigid plate.A deflection of $1.25 m m$ was caused by a pressure of $0.84 k g / c m^{2}$ . The modulus of subgrade reaction in $k g / c m^{3}$ _____ 6.81

Discussion

43.	Orbital having 3 angular nodes and 3 total nodes is
Answer» Orbital having 3 angular nodes and 3 total nodes is

Discussion

44.	25.Al2cl6 hypovalent or hypervalent
Answer» 25.Al2cl6 hypovalent or hypervalent

Discussion

45.	1) The order of reactivity in nucleophilic substitutionreaction isa) CH3FCH Cl
Answer» 1) The order of reactivity in nucleophilic substitutionreaction isa) CH3FCH Cl

Discussion

46.	20.The n-factor of M0.25O in the reaction, M0.25O------------àMO is- (1) 1.5 (2) 4.5 (3) 3 (4 2.5
Answer» 20.The n-factor of M0.25O in the reaction, M0.25O------------àMO is- (1) 1.5 (2) 4.5 (3) 3 (4 2.5

Discussion

47.	What is electronegativity and ionic mobility and tell about trend of ionic mobility in alkali metals
Answer» What is electronegativity and ionic mobility and tell about trend of ionic mobility in alkali metals

Discussion

48.	which mechanism sandmeyer reaction follows ?general reaction of benzene derivatives is electrophilic aromatic substitution then why sandmeyer reaction is free radical type?
Answer» which mechanism sandmeyer reaction follows ?general reaction of benzene derivatives is electrophilic aromatic substitution then why sandmeyer reaction is free radical type?

Discussion

49.	When the velocity of relativistics charged particle increases its specific charge - 1. decreases 2.increases 3.remains same 4.First inncreases then decreases
Answer» When the velocity of relativistics charged particle increases its specific charge - 1. decreases 2.increases 3.remains same 4.First inncreases then decreases

Discussion

50.	0.5 kg of a metal carbonate gives 0.28 kg of its oxide on heating. The equivalent weight of the metal is:
Answer» $0.5 kg$ of a metal carbonate gives $0.28 kg$ of its oxide on heating. The equivalent weight of the metal is:

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

56. C-C bond is longest A.alpha B.Beta C.gamma D.equal bond length.

The boiling point of two solvents are equal If the Lv for solvent A is 7kJ/ g the ratio of Kf values ( molecular weight of two solvents are relates as Ma: Ma= 1:2) will be

One of the semicircular Ring of radius R has charge minus Q by the other hand has + Q the ring is placed in xy plane with a uniform electric field exist is equal to in not into ICAP find the work done to be done by the external agent to rotate the ring about Z Axis by 90 degrees clockwise direction

5.Among cyclopropyl carbocation and aromatic carbocation which will be more stable and why?

How to find if the function is onto

what are the types of rate of the reaction

6. Which of the following will give maximum numbers number of isomers and how A) [Ni(C2O4)(en)2]cl2 B) [Cr(SCN)2(NH3)4]Cl

Let A and B be finite sets containing m and n elements respectively. The number of relations that can bedefined from A to B is

in which of the following element +3 oxidation state is more stable than +5a] P b] As c] N d] Bi

Nylon - 6, 6 is

The standard reduction potentials of Cu2+/Cu and Cu2+/Cu+ are 0.337 V and 0.153 V respectively. The standard electrode potential of Cu+/Cu half-cell is:

Which one among the following resonating structures in not correct?

State the laws of chemical combination and define each?

Arrange the following carbocations in decreasing order of stability

O2 undergoes photochemical dissociation into one normal oxygen atom and one oxygen atom which is 1.5 eV more energetic than normal. The dissociation of O2 into two normal atoms of oxygen requires 504 kJmol−1. What is the maximum wavelength effective for photochemical dissociation of O2?

56 A mixture containing 100 g H and 100 g O is ignited so that water is formed according to the reaction 2H(g)+ O(g) - - - - - > 2HO(g). The volume of water vapours formed at the same temperature and pressure is:- (1) 112.5 litre (2) 6.25 litre (3) 140 litre (4) None of these

43. The equivalent weight of H3PO4 in following reaction is:- H3PO4+Ca(OH)2------>CaHPO4+2H2O 1)98 2)49 3)32.66 4)40

QUESTION 14.12(i) Define the following as related to proteins. Peptide linkage Define the following as related to proteins. Primary structure Define the following as related to proteins. Denaturation.

The crystal field stabilisation energy for CoCl6 is 18000 the cfse for Cocl4

What is escape velocity ? Formula and 1-2 problems on formula

Metamers of ethyl propionate are:

A certain mass of Hydrogen is changed to Helium by the process of fusion. The Mass defect in fusion reaction is 0.02866 u. The energy liberated per u is: (Given 1 u = 931 MeV) (1)26.7 MeV(2)6.675 MeV(3)13.35 MeV(4)2.67 MeV

27. Is this true that only organic compounds have intramolecular H-bonds ?

15. How does bond order and magnetic moment decrease in O_2- to O_2^{2-} and CO^+ to CO??

Draw the energy profile diagram of SN1 reaction.

Is a cyclic compound only planar when all of its atoms of the ring are sp^2 hybridised

1Lof }CO_2 is passed over hot coke. When the } olume of reaction mixture} becomes }1.4L , the } composition of reaction mixture is-

For Cr+ ion, how many electrons can have n + l + | m | =4, with clockwise spin?

It requires 40 mL of 1 M Ce4+ to titrate 20 mL of 1 M Sn2+toSn4+. What is the magnitude of the oxidation state of cerium in the product?

Which of the following is incorrectly matched?1) PVC – Vinyl chloride2) Polythene – Ethane3) Teflon – Tetrafluoroethene4)Cellulose – Glucose

(3) K2.) K, for PCl,(g)PCl (g)+ CI2(g) is 0.04 at25^° C. The number of moles of PC, required to a3.0 litre flask to obtain Cl2 of concentration 0.15 Mis(2) 2.1 mole(4) 0.45 mole(1) 1.5 mole(3) 6.0 mole

Which of the following radial distrubution graphs is the correct representation of a plot of radial probability vs distance from the nucleus corresponding to l=2 for the Hydrogen atom?

32. Bottom of a lake is at 0c and atmospheric temperature is -20C. If 1 cm ice is formed on the surface in 24 h, then time taken to form next 1 cm of ice is (2) 72 h o (4) 96 h (1) 24 h (3) 48 h

What is the direct relationship between bond order and stability of a compound?

Show the isomers of Heptane(dot structure and brached structure)

Predict the products of electrolysis of an aqueous solution of CuBr^2

A 1 : 2 mixture (by mole) of ethanol and propanol exerts a vapour pressure of 250 mm Hg. The vapour pressure of propanol in solution is 200 mm Hg, then the vapour pressure of pure ethanol is (in mm Hg)

For the reaction A 3B are equal, then percent of B reacted is (1) 10% (3) 40% 2C + D, initial mole of A is twice that of B. If at equilibrium moles of B and (2) 20% (4) 60%

The correct order of reactivity towards nucleophilic substitution reaction for the given compound is:

A plate bearing test was carried out on a subgrade using a 76cm diameter rigid plate.A deflection of 1.25mm was caused by a pressure of 0.84kg/cm2. The modulus of subgrade reaction in kg/cm3_____6.81

Orbital having 3 angular nodes and 3 total nodes is

25.Al2cl6 hypovalent or hypervalent

1) The order of reactivity in nucleophilic substitutionreaction isa) CH3FCH Cl

20.The n-factor of M0.25O in the reaction, M0.25O------------àMO is- (1) 1.5 (2) 4.5 (3) 3 (4 2.5

What is electronegativity and ionic mobility and tell about trend of ionic mobility in alkali metals

which mechanism sandmeyer reaction follows ?general reaction of benzene derivatives is electrophilic aromatic substitution then why sandmeyer reaction is free radical type?

When the velocity of relativistics charged particle increases its specific charge - 1. decreases 2.increases 3.remains same 4.First inncreases then decreases

0.5 kg of a metal carbonate gives 0.28 kg of its oxide on heating. The equivalent weight of the metal is: