46295 + Interview Questions in Chemistry

1.	The maximum number of electrons present in an atom whose highest principal quantum no. is 4 is 32 How?
Answer» The maximum number of electrons present in an atom whose highest principal quantum no. is 4 is 32 How?

Discussion

2.	Three capacitors each of 3μF are connected in a circuit. The maximum and minimum equivalent capacitance that can be obtained using these capacitors are
Answer» Three capacitors each of $3 μ F$ are connected in a circuit. The maximum and minimum equivalent capacitance that can be obtained using these capacitors are

Discussion

3.	What kind of geometrical isomerism exists for [M(AB)3] complex? (AB) is an unsymmetrical bidentate ligand
Answer» What kind of geometrical isomerism exists for [M(AB)3] complex? (AB) is an unsymmetrical bidentate ligand

Discussion

4.	Fill in the blanks:-1. The ………… is a natural source of light.2. A ………… is an artificial source of light.3. While passing through a prism, light splits into ………… colors.4. The image obtained in a pinhole camera is …………
Answer» Fill in the blanks:- 1. The ………… is a natural source of light. 2. A ………… is an artificial source of light. 3. While passing through a prism, light splits into ………… colors. 4. The image obtained in a pinhole camera is …………

Discussion

5.	for which reaction from the following, del S is maximum 1.Ca(s)+1/2 O2(g)= CaO(s) 2.C(s)+O2(g)=CO2(g) 3.CaCO3(s)=CaO(s)+CO2(g) 4.N2(g)+O2(g)=2NO(g)
Answer» for which reaction from the following, del S is maximum 1.Ca(s)+1/2 O2(g)= CaO(s) 2.C(s)+O2(g)=CO2(g) 3.CaCO3(s)=CaO(s)+CO2(g) 4.N2(g)+O2(g)=2NO(g)

Discussion

6.	Which is true about the acidic character of hydroxyl groups of sugars and hydroxyl group of an alcohol ?
Answer» Which is true about the acidic character of hydroxyl groups of sugars and hydroxyl group of an alcohol ?

Discussion

7.	The correct order in which the O-O bond length increases in the following is a)H2O2
Answer» The correct order in which the O-O bond length increases in the following is a)H2O2

Discussion

8.	An azo compound is formed when benzene diazonium chloride reacts with:
Answer» An azo compound is formed when benzene diazonium chloride reacts with:

Discussion

9.	In a 0.25L tube dissociation of 4 mole of NO is taken place. If the dgree of dissociation is 10%. The value of kp for reaction 2NO gives N2 +O2 is
Answer» In a 0.25L tube dissociation of 4 mole of NO is taken place. If the dgree of dissociation is 10%. The value of kp for reaction 2NO gives N2 +O2 is

Discussion

10.	The correct order of magnetic moments (spin values in B.M) among is:
Answer» The correct order of magnetic moments (spin values in B.M) among is:

Discussion

11.	The Process requiring absorption of energy is :
Answer» The Process requiring absorption of energy is :

Discussion

12.	Major product formed during the reaction between isobutyl bromide and benzene in presence of anhydrous AlCl3 is :
Answer» Major product formed during the reaction between isobutyl bromide and benzene in presence of anhydrous $A l C l_{3}$ is :

Discussion

13.	How many carbons are in the planar double bond system in 1-methyl cyclohexene.
Answer» How many carbons are in the planar double bond system in 1-methyl cyclohexene.

Discussion

14.	Which of the following is always true for induced charge q and inducing charge Q?Options:q\| > \|Q\|Should have chosen \|q\| ≤ \|Q\|\|q\| ≥ \|Q\|q\| = \|Q\|
Answer» Which of the following is always true for induced charge q and inducing charge Q? Options: q\| > \|Q\| Should have chosen \|q\| ≤ \|Q\| \|q\| ≥ \|Q\| q\| = \|Q\|

Discussion

15.	The weakest base isa)ClO4- b) HS-c)CH3coo- d)NH3
Answer» The weakest base is a)ClO4- b) HS- c)CH3coo- d)NH3

Discussion

16.	Q. What is the difference between no. of moles , stoichiometric coefficients and no. of molecules
Answer» Q. What is the difference between no. of moles , stoichiometric coefficients and no. of molecules

Discussion

17.	How can domestic waste be used as manure?
Answer» How can domestic waste be used as manure?

Discussion

18.	22 Fluorine is the most reactive among all the halogens, because of it's A small size B low dissociation energy of F-F bond C large size D high dissociation energy of F-F bond
Answer» 22 Fluorine is the most reactive among all the halogens, because of it's A small size B low dissociation energy of F-F bond C large size D high dissociation energy of F-F bond

Discussion

19.	30. In a Face centred cubic lattice a unit cell is shared equally by how many unit cell
Answer» 30. In a Face centred cubic lattice a unit cell is shared equally by how many unit cell

Discussion

20.	Define the following formsA. Atom B. IsotopeC. Atomic numberD. Atomic mass numberE. Moderator in nuclear reactor
Answer» Define the following forms A. Atom B. Isotope C. Atomic number D. Atomic mass number E. Moderator in nuclear reactor

Discussion

21.	The solubility of Ag2C2O4 in acidified water of pH=5 is 2.46×10−x. The value of 'x' is: (Given: Ka1=5×10−2,Ka2=5×10−5 for oxalic acid Ksp of Ag2C2O4=5×10−11,3√120.004=4.93)
Answer» The solubility of $A g_{2} C_{2} O_{4}$ in acidified water of $p H = 5$ is $2.46 \times 10^{- x}$ . The value of ' $x$ ' is: $(Given: K a_{1} = 5 \times 10^{- 2}, K_{a_{2}} = 5 \times 10^{- 5} for oxalic acid$ $K_{s p} of A g_{2} C_{2} O_{4} = 5 \times 10^{- 11}, \sqrt[3]{120.004} = 4.93)$

Discussion

22.	70. Half mole of Helium gas is contained in a container at STP. Heat energy needed to double pressure of a gas , keeping the volume constant(heat capacity of gas =3j/gm K^° ) 1)3276j 2)1638j 3)819j 4)409.5j
Answer» 70. Half mole of Helium gas is contained in a container at STP. Heat energy needed to double pressure of a gas , keeping the volume constant(heat capacity of gas =3j/gm K^° ) 1)3276j 2)1638j 3)819j 4)409.5j

Discussion

23.	Two solutions A and B when taken separately in the same conductivity cell had a resistance of 40ohm and 60 ohm. If equal volumes of both the solutions are mixed then the resistance of mixture will be
Answer» Two solutions A and B when taken separately in the same conductivity cell had a resistance of 40ohm and 60 ohm. If equal volumes of both the solutions are mixed then the resistance of mixture will be

Discussion

24.	Nitrogen monoxide reacts with oxygen according to the reaction: 2NO (g) + O2 (g) → 2NO2(g) If 12 moles of nitrogen monoxide reacts with 10 moles of oxygen, how many moles of NO2 will be formed?
Answer» Nitrogen monoxide reacts with oxygen according to the reaction: 2NO (g) + O₂(g) → 2NO₂(g) If 12 moles of nitrogen monoxide reacts with 10 moles of oxygen, how many moles of NO₂ will be formed?

24.

Nitrogen monoxide reacts with oxygen according to the reaction: 2NO (g) + O2 (g) → 2NO2(g) If 12 moles of nitrogen monoxide reacts with 10 moles of oxygen, how many moles of NO2 will be formed?

Answer»

Nitrogen monoxide reacts with oxygen according to the reaction:

2NO (g) + O₂(g) → 2NO₂(g)

If 12 moles of nitrogen monoxide reacts with 10 moles of oxygen, how many moles of NO₂ will be formed?

Discussion

25.	What is the correct expression of Kc for the given reaction? P4(s)+5O2(g)⇋P4O10(s)
Answer» What is the correct expression of $K_{c}$ for the given reaction? $P_{4} (s) + 5 O_{2} (g) ⇋ P_{4} O_{10} (s)$

Discussion

26.	1.What is haploid and diploid?
Answer» 1.What is haploid and diploid?

Discussion

27.	2. How many isomers does [Co(en)NH3Cl2]Cl have?
Answer» 2. How many isomers does [Co(en)NH3Cl2]Cl have?

Discussion

28.	18. Compare dipole moment of H2O and NH3
Answer» 18. Compare dipole moment of H2O and NH3

Discussion

29.	Pure water freezes at 273 K and 1 bar. The addition of 34.5 g of ethanol to 500 g of water changes the freezing point of the solution. Use the freezing point depression constant of water as 2 Kkgmol−1. The figures shown below represent plots of vapour pressure (V.P.) versus temperature (T).[molecular weight of ethanol is 46 gmol−1]Among the following, the optionrepresenting change in the freezing point is:
Answer» Pure water freezes at $273 K$ and $1 b a r$ . The addition of $34.5 g$ of ethanol to $500 g$ of water changes the freezing point of the solution. Use the freezing point depression constant of water as $2 K k g m o l^{- 1}$ . The figures shown below represent plots of vapour pressure (V.P.) versus temperature (T). [molecular weight of ethanol is $46 g m o l^{- 1}$ ] Among the following, the option representing change in the freezing point is:

Discussion

30.	Which of the following salt solution has pH < 7?
Answer» Which of the following salt solution has pH < 7?

Discussion

31.	Calcium crystallises in FCC unit cell with edge length =0.556nm .Calculate its density if it contains 0.1% vacancy defects. (Plz give the solution with explanation)
Answer» Calcium crystallises in FCC unit cell with edge length =0.556nm .Calculate its density if it contains 0.1% vacancy defects. (Plz give the solution with explanation)

31.

Calcium crystallises in FCC unit cell with edge length =0.556nm .Calculate its density if it contains 0.1% vacancy defects. (Plz give the solution with explanation)

Answer»

Calcium crystallises in FCC unit cell with edge length =0.556nm .Calculate its density if it contains 0.1% vacancy defects.

(Plz give the solution with explanation)

Discussion

32.	The equilibrium reaction that is not influenced by volume change at constant temperature is:
Answer» The equilibrium reaction that is not influenced by volume change at constant temperature is:

Discussion

33.	The correct order of equivalent conductance at infinite dilution of LiCl, NaCl and KCl is:
Answer» The correct order of equivalent conductance at infinite dilution of $L i C l, N a C l$ and $K C l$ is:

Discussion

34.	The compound which does not disproportionate on hydrolysis is:
Answer» The compound which does not disproportionate on hydrolysis is:

Discussion

35.	What is point object and extended object in simple language
Answer» What is point object and extended object in simple language

Discussion

36.	46.On which scale does electronegativity is measured as that of &quotH" is 2.1 ?
Answer» 46.On which scale does electronegativity is measured as that of "H" is 2.1 ?

Discussion

37.	conc h2so4 is 98% by mass and has density of 1.84g/cm3. what vol. of the conc. acid is required to make 5L of 0.5M h2SO4 sol.
Answer» conc h2so4 is 98% by mass and has density of 1.84g/cm3. what vol. of the conc. acid is required to make 5L of 0.5M h2SO4 sol.

Discussion

38.	How are 3Fe2+ ions converted to 2Fe3+ ions in Fe3O4
Answer» How are 3Fe2+ ions converted to 2Fe3+ ions in Fe3O4

Discussion

39.	In a Young's double slit experiment, slits are separated by 0.5mm, and the screen is placed 150cm away. A beam of light consisting of two wavelengths, 650nm and 520nm, is used to obtain interference fringes on the screen. The least distance from the common central maximum to the point where the bright fringes due to both the wavelengths coincide is
Answer» In a Young's double slit experiment, slits are separated by $0.5 m m$ , and the screen is placed $150 c m$ away. A beam of light consisting of two wavelengths, $650 n m$ and $520 n m$ , is used to obtain interference fringes on the screen. The least distance from the common central maximum to the point where the bright fringes due to both the wavelengths coincide is

Discussion

40.	9. structure of N(CH_3)_3 is nonplanar where as N(SiH_3)_3 is planar. Why?
Answer» 9. structure of N(CH_3)_3 is nonplanar where as N(SiH_3)_3 is planar. Why?

Discussion

41.	The molality of a urea solution in which 0.0100g of urea ,(NH2)CO is added to 0.3000 dm\ast3 of water at STp
Answer» The molality of a urea solution in which 0.0100g of urea ,(NH2)CO is added to 0.3000 dm\ast3 of water at STp

Discussion

42.	All nucleophiles are
Answer» All nucleophiles are

Discussion

43.	why is there always a decrease in residual forces of the surface
Answer» why is there always a decrease in residual forces of the surface

Discussion

44.	Calculate the free energy change when 1 mole of NaCl is dissolved in water at 298 K. (Given lattice energy of NaCl = -774.1 kj/mol and Δ S = 0.043 Kj K-1mol-1 at 298 K)
Answer» Calculate the free energy change when 1 mole of NaCl is dissolved in water at 298 K. (Given lattice energy of NaCl = -774.1 kj/mol and $Δ$ S = 0.043 Kj K-1mol-1 at 298 K)

Discussion

45.	A crystal is made up of particles A and B. A forms FCC packing and B occupies all the octahedral voids. If all the particles along one of the diagonal plane in the unit cell are removed, then, the formula of the crystal would be : (a) AB (b) A5B7 (c) A7B5 (d) none of these
Answer» A crystal is made up of particles A and B. A forms FCC packing and B occupies all the octahedral voids. If all the particles along one of the diagonal plane in the unit cell are removed, then, the formula of the crystal would be : (a) AB (b) A₅B₇(c) A₇B_{5 (d) none of these}

45.

A crystal is made up of particles A and B. A forms FCC packing and B occupies all the octahedral voids. If all the particles along one of the diagonal plane in the unit cell are removed, then, the formula of the crystal would be : (a) AB (b) A5B7 (c) A7B5 (d) none of these

Answer»

A crystal is made up of particles A and B. A forms FCC packing and B occupies all the octahedral voids. If all the particles along one of the diagonal plane in the unit cell are removed, then, the formula of the crystal would be :

(a) AB (b) A₅B₇(c) A₇B_{5 (d) none of these}

Discussion

46.	An excess of AgNO3 is added to 100mL of a 0.01M solution of dichlorotetraaquachromium(III) chloride. The number of moles of AgCl precipitated would be ?
Answer» An excess of AgNO3 is added to 100mL of a 0.01M solution of dichlorotetraaquachromium(III) chloride. The number of moles of AgCl precipitated would be ?

Discussion

47.	What is the relationship between molality and molarity with proper derivation.
Answer» What is the relationship between molality and molarity with proper derivation.

Discussion

48.	22. The heat of formation (N2O5,g) in KJ/mol on the bases of the following data is 2NO(g)+O2(g)---->2NO2(g) H= -114kJ/mol 4NO2(g)+O2(g)--->2N2O5(g) H= -102.6KJ/mol Heat of formation (NO,g)= 90.2 kJ/mol 1)15.1 2)30.2 3)-36.2 4 none of these
Answer» 22. The heat of formation (N2O5,g) in KJ/mol on the bases of the following data is 2NO(g)+O2(g)---->2NO2(g) H= -114kJ/mol 4NO2(g)+O2(g)--->2N2O5(g) H= -102.6KJ/mol Heat of formation (NO,g)= 90.2 kJ/mol 1)15.1 2)30.2 3)-36.2 4 none of these

Discussion

49.	Arrange Oxyacids of group 15 in decreasing order of thermal stability and solubility in water . Give reason
Answer» Arrange Oxyacids of group 15 in decreasing order of thermal stability and solubility in water . Give reason

Discussion

50.	Benzoic acid on treatment with hydrazoic acid in presence of concentrated sulphuric acid gives?
Answer» Benzoic acid on treatment with hydrazoic acid in presence of concentrated sulphuric acid gives?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The maximum number of electrons present in an atom whose highest principal quantum no. is 4 is 32 How? ​​​​​

Three capacitors each of 3μF are connected in a circuit. The maximum and minimum equivalent capacitance that can be obtained using these capacitors are

What kind of geometrical isomerism exists for [M(AB)3] complex? (AB) is an unsymmetrical bidentate ligand

Fill in the blanks:-1. The ………… is a natural source of light.2. A ………… is an artificial source of light.3. While passing through a prism, light splits into ………… colors.4. The image obtained in a pinhole camera is …………

for which reaction from the following, del S is maximum 1.Ca(s)+1/2 O2(g)= CaO(s) 2.C(s)+O2(g)=CO2(g) 3.CaCO3(s)=CaO(s)+CO2(g) 4.N2(g)+O2(g)=2NO(g)

Which is true about the acidic character of hydroxyl groups of sugars and hydroxyl group of an alcohol ?

The correct order in which the O-O bond length increases in the following is a)H2O2

An azo compound is formed when benzene diazonium chloride reacts with:

In a 0.25L tube dissociation of 4 mole of NO is taken place. If the dgree of dissociation is 10%. The value of kp for reaction 2NO gives N2 +O2 is

The correct order of magnetic moments (spin values in B.M) among is:

The Process requiring absorption of energy is :

Major product formed during the reaction between isobutyl bromide and benzene in presence of anhydrous AlCl3 is :

How many carbons are in the planar double bond system in 1-methyl cyclohexene.

Which of the following is always true for induced charge q and inducing charge Q?Options:q| > |Q|Should have chosen |q| ≤ |Q||q| ≥ |Q|q| = |Q|

The weakest base isa)ClO4- b) HS-c)CH3coo- d)NH3

Q. What is the difference between no. of moles , stoichiometric coefficients and no. of molecules

How can domestic waste be used as manure?

22 Fluorine is the most reactive among all the halogens, because of it's A small size B low dissociation energy of F-F bond C large size D high dissociation energy of F-F bond

30. In a Face centred cubic lattice a unit cell is shared equally by how many unit cell

Define the following formsA. Atom B. IsotopeC. Atomic numberD. Atomic mass numberE. Moderator in nuclear reactor

The solubility of Ag2C2O4 in acidified water of pH=5 is 2.46×10−x. The value of 'x' is: (Given: Ka1=5×10−2,Ka2=5×10−5 for oxalic acid Ksp of Ag2C2O4=5×10−11,3√120.004=4.93)

70. Half mole of Helium gas is contained in a container at STP. Heat energy needed to double pressure of a gas , keeping the volume constant(heat capacity of gas =3j/gm K^° ) 1)3276j 2)1638j 3)819j 4)409.5j

Two solutions A and B when taken separately in the same conductivity cell had a resistance of 40ohm and 60 ohm. If equal volumes of both the solutions are mixed then the resistance of mixture will be

Nitrogen monoxide reacts with oxygen according to the reaction: 2NO (g) + O2 (g) → 2NO2(g) If 12 moles of nitrogen monoxide reacts with 10 moles of oxygen, how many moles of NO2 will be formed?

What is the correct expression of Kc for the given reaction? P4(s)+5O2(g)⇋P4O10(s)

1.What is haploid and diploid?

2. How many isomers does [Co(en)NH3Cl2]Cl have?

18. Compare dipole moment of H2O and NH3

Which of the following salt solution has pH &lt; 7?

Calcium crystallises in FCC unit cell with edge length =0.556nm .Calculate its density if it contains 0.1% vacancy defects. (Plz give the solution with explanation)

The equilibrium reaction that is not influenced by volume change at constant temperature is:

The correct order of equivalent conductance at infinite dilution of LiCl, NaCl and KCl is:

The compound which does not disproportionate on hydrolysis is:

What is point object and extended object in simple language

46.On which scale does electronegativity is measured as that of &quotH" is 2.1 ?

conc h2so4 is 98% by mass and has density of 1.84g/cm3. what vol. of the conc. acid is required to make 5L of 0.5M h2SO4 sol.

How are 3Fe2+ ions converted to 2Fe3+ ions in Fe3O4

9. structure of N(CH_3)_3 is nonplanar where as N(SiH_3)_3 is planar. Why?

The molality of a urea solution in which 0.0100g of urea ,(NH2)CO is added to 0.3000 dm\ast3 of water at STp

All nucleophiles are

why is there always a decrease in residual forces of the surface

Calculate the free energy change when 1 mole of NaCl is dissolved in water at 298 K. (Given lattice energy of NaCl = -774.1 kj/mol and Δ S = 0.043 Kj K-1mol-1 at 298 K)

A crystal is made up of particles A and B. A forms FCC packing and B occupies all the octahedral voids. If all the particles along one of the diagonal plane in the unit cell are removed, then, the formula of the crystal would be : (a) AB (b) A5B7 (c) A7B5 (d) none of these

An excess of AgNO3 is added to 100mL of a 0.01M solution of dichlorotetraaquachromium(III) chloride. The number of moles of AgCl precipitated would be ?

What is the relationship between molality and molarity with proper derivation.

22. The heat of formation (N2O5,g) in KJ/mol on the bases of the following data is 2NO(g)+O2(g)---->2NO2(g) H= -114kJ/mol 4NO2(g)+O2(g)--->2N2O5(g) H= -102.6KJ/mol Heat of formation (NO,g)= 90.2 kJ/mol 1)15.1 2)30.2 3)-36.2 4 none of these

Arrange Oxyacids of group 15 in decreasing order of thermal stability and solubility in water . Give reason

Benzoic acid on treatment with hydrazoic acid in presence of concentrated sulphuric acid gives?

The maximum number of electrons present in an atom whose highest principal quantum no. is 4 is 32 How?

Which of the following salt solution has pH < 7?