46295 + Interview Questions in Chemistry

1.	Give theIUPAC names of the following compounds:(a) (b) (c) (d) (e) (f) Cl2CHCH2OH
Answer» Give the IUPAC names of the following compounds: (a) (b) (c) (d) (e) (f) Cl₂CHCH₂OH

1.

Give theIUPAC names of the following compounds:(a) (b) (c) (d) (e) (f) Cl2CHCH2OH

Answer»

Give the
IUPAC names of the following compounds:

(a)

(b)

(c)

(d)

(e)

(f)
Cl₂CHCH₂OH

Discussion

2.	HF is weak acid in comparison to HBr, HCl and HI due to
Answer» HF is weak acid in comparison to HBr, HCl and HI due to

Discussion

3.	Which element has highest positive value of electron gain enthalpy?
Answer» Which element has highest positive value of electron gain enthalpy?

Discussion

4.	Which of the following can be a conjugate system ?
Answer» Which of the following can be a conjugate system ?

Discussion

5.	For the reaction 2NO(g)⇌N2(g)+O2(g),ΔH=−180 kJ mol−1. Which of the following facts does not hold well?
Answer» For the reaction $2 N O (g) ⇌ N_{2} (g) + O_{2} (g), Δ H = - 180 k J m o l^{- 1}$ . Which of the following facts does not hold well?

Discussion

6.	Vapour pressure of pure benzene is 119 torr and that of toluene is 37 torr at the same temperature . Mole fraction of toluene in vapour phase which is in equilibrium with a solution of benzene and toluene having a mole fraction of toluene 0.50 ,will be
Answer» Vapour pressure of pure benzene is 119 torr and that of toluene is 37 torr at the same temperature . Mole fraction of toluene in vapour phase which is in equilibrium with a solution of benzene and toluene having a mole fraction of toluene 0.50 ,will be

Discussion

7.	if E^°=M^{+2}\vert M=x Volt & E^° x^-\vert x=y volt then s†an dard cell potential i
Answer» if E^°=M^{+2}\vert M=x Volt & E^° x^-\vert x=y volt then s†an dard cell potential i

Discussion

8.	Propose product with a appropriate stereochemistry in the following SN2 reaction.
Answer» Propose product with a appropriate stereochemistry in the following $S_{N} 2$ reaction.

Discussion

9.	The equilibrium constant for the reaction, is 50 at a particular temperature. If equilibrium concentrations of CO and CH3OH are 2 × 10–1 M and 2.5 × 10–2 M respectively then equilibrium concentration of H2 is
Answer» The equilibrium constant for the reaction, is 50 at a particular temperature. If equilibrium concentrations of CO and CH3OH are 2 × 10–1 M and 2.5 × 10–2 M respectively then equilibrium concentration of H2 is

Discussion

10.	How many significant figures are there in 6.02×10^24 ?
Answer» How many significant figures are there in 6.02×10^24 ?

Discussion

11.	The non-stoichiometric compound Fe0.94O is formed when x% of Fe2+ ions are replaced by Fe3+ ions then x is
Answer» The non-stoichiometric compound $F e_{0.94} O$ is formed when x% of $F e^{2 +}$ ions are replaced by $F e^{3 +}$ ions then x is

Discussion

12.	Internal shell is present in:
Answer» Internal shell is present in:

Discussion

13.	Metallic nature and basic nature of the oxides ........ as we move along a period
Answer» Metallic nature and basic nature of the oxides ........ as we move along a period

Discussion

14.	Which of the following groups contains all polysaccharides
Answer» Which of the following groups contains all polysaccharides

Discussion

15.	Chloroamphenicol is an
Answer» Chloroamphenicol is an

Discussion

16.	Writebond line formulas for: Isopropyl alcohol,2,3-Dimethyl butanal, Heptan-4-one.
Answer» Write bond line formulas for: Isopropyl alcohol, 2,3-Dimethyl butanal, Heptan-4-one.

Discussion

17.	Is the statemtn correct- Organo cadmium compounds attack acid chlorides only and not ketones?
Answer» Is the statemtn correct- Organo cadmium compounds attack acid chlorides only and not ketones?

Discussion

18.	What is the cm
Answer» What is the cm

Discussion

19.	55 Hclo>hclo2>hclo3>hclo4. Explain the reason of oxidizing power of these molecules.
Answer» 55 Hclo>hclo2>hclo3>hclo4. Explain the reason of oxidizing power of these molecules.

Discussion

20.	In the nitration of benzene with a mixture of conc HNO3 and conc H2SO4, the active species involved are
Answer» In the nitration of benzene with a mixture of conc $H N O_{3}$ and conc $H_{2} S O_{4}$ , the active species involved are

Discussion

21.	Explain why cations are smaller and anions larger in radii than their parent atoms?
Answer» Explain why cations are smaller and anions larger in radii than their parent atoms?

Discussion

22.	which of the fillowung is not a reducing agent1( So2 2) SeO2 3)TeO 4) SO3 also explain other option
Answer» which of the fillowung is not a reducing agent1( So2 2) SeO2 3)TeO 4) SO3 also explain other option

Discussion

23.	1. Calculate the volume occupied by 7 grams of hydrogen gas at 27 degree Celsius and 750 mm of Hg pressure.
Answer» 1. Calculate the volume occupied by 7 grams of hydrogen gas at 27 degree Celsius and 750 mm of Hg pressure.

Discussion

24.	Ethyl ester. The product P will be
Answer» Ethyl ester. The product P will be

24.

Ethyl ester. The product P will be

Answer»

Ethyl ester. The product P will be

Discussion

25.	Which of the following is a correct priority order of functional groups?
Answer» Which of the following is a correct priority order of functional groups?

Discussion

26.	The de borglie wavelength of an electron in first orbit of hydrogen atom is equal to
Answer» The de borglie wavelength of an electron in first orbit of hydrogen atom is equal to

Discussion

27.	The solubility of Ba(OH)2.8H2O in water at 288 K is 5.6g per 100 g of water. What is morality of hydroxide ions in saturated solution of barium hydroxide at 288 K?(atomic masses:Ba - 137,O-16,H-1)
Answer» The solubility of Ba(OH)₂.8H₂O in water at 288 K is 5.6g per 100 g of water. What is morality of hydroxide ions in saturated solution of barium hydroxide at 288 K?(atomic masses:Ba - 137,O-16,H-1)

Discussion

28.	An ideal monoatomic gas undergoes different types of processes which are described in column I. Match the corresponding statements in column II. The parameters involved have standard usual meaning.Column IColumn II(A)P=2V2(p) If volume increases thentemperature will also increase(B)PV2=constant(q) If volume increases thentemperature will decrease(C)C=CV+2R(r) For expansion, heat will haveto be supplied to gas(D)C=CV−2R(s) If temperature increases then theworkdone by gas is positive(t) If temperature decreases then workdone by gas is positive.
Answer» An ideal monoatomic gas undergoes different types of processes which are described in column I. Match the corresponding statements in column II. The parameters involved have standard usual meaning. $\begin{matrix} Column I & Column II (A) P = 2 V^{2} & (p) If volume increases then temperature will also increase (B) P V^{2} = constant & (q) If volume increases then temperature will decrease (C) C = C_{V} + 2 R & (r) For expansion, heat will have to be supplied to gas (D) C = C_{V} - 2 R & (s) If temperature increases then the workdone by gas is positive (t) If temperature decreases then workdone by gas is positive . \end{matrix}$

Discussion

29.	A solution of 1.25 g of a non-electrolyte in 20 g of water freezes at 271.94 K. If Kf = 1.86 K/molality then the molecular wt. of the solute is : (1) 90.1 g/mol (2) 90.5 g/mol (3) 92.4 g/mol (4) 96.01 g/mol
Answer» A solution of 1.25 g of a non-electrolyte in 20 g of water freezes at 271.94 K. If Kf = 1.86 K/molality then the molecular wt. of the solute is : (1) 90.1 g/mol (2) 90.5 g/mol (3) 92.4 g/mol (4) 96.01 g/mol

Discussion

30.	What is the energy order of orbitals of uni-electronic species?
Answer» What is the energy order of orbitals of uni-electronic species?

Discussion

31.	If ketone and an alkene are in the same compound and the compound is made to react with H²/ Ni (1 equivalent ) then alkene will attack or carbonyl ?
Answer» If ketone and an alkene are in the same compound and the compound is made to react with H²/ Ni (1 equivalent ) then alkene will attack or carbonyl ?

Discussion

32.	The total number of electrons in all bonding molecular orbitals of O2−2 is(Round off to the Nearest Integer).
Answer» The total number of electrons in all bonding molecular orbitals of $O_{2}^{2 -}$ is (Round off to the Nearest Integer).

Discussion

33.	44.What is the order of melting points and boiling points for halides of group 1 and group 2 elements. Give both orders,viz., for the same metal and same halide for both the groups.
Answer» 44.What is the order of melting points and boiling points for halides of group 1 and group 2 elements. Give both orders,viz., for the same metal and same halide for both the groups.

Discussion

34.	Q. CH_{3 }I\xrightarrow A CH_3CN\xrightarrow{H_2/Ni}B find A&B. a\rbrack NH_3, CH_3NH_2 b\rbrack KCN, CH_3NH_2 c\rbrack HCN, C_2H_5NH_2 d\rbrack KCN, C_2H_5NH_2
Answer» Q. CH_{3 }I\xrightarrow A CH_3CN\xrightarrow{H_2/Ni}B find A&B. a\rbrack NH_3, CH_3NH_2 b\rbrack KCN, CH_3NH_2 c\rbrack HCN, C_2H_5NH_2 d\rbrack KCN, C_2H_5NH_2

Discussion

35.	Haemoglobin contains 0.334 % of iron by weight.The molecular weight of haemoglobin isapproximately 67200/The number of iron atoms(Atomic weight of Fe is 56)) present in onemolecule of haemoglobin is
Answer» Haemoglobin contains 0.334 % of iron by weight.The molecular weight of haemoglobin isapproximately 67200/The number of iron atoms(Atomic weight of Fe is 56)) present in onemolecule of haemoglobin is

Discussion

36.	Q. Henry's law constant for molality of CH4 in benzene at 298 K is 3.8 × 103 mm of Hg. Calculate solubility of CH4 in benzene at 760 mm of Hg ?(1) 5.1m(2) 7.5m(3) 2.7m(4) 3.2m
Answer» Q. Henry's law constant for molality of CH4 in benzene at 298 K is 3.8 × 103 mm of Hg. Calculate solubility of CH4 in benzene at 760 mm of Hg ? (1) 5.1m (2) 7.5m (3) 2.7m (4) 3.2m

Discussion

37.	Question 1 Hydrogen resembles halogens in many respects for which several factors are responsible. Of the following factors which one is most important in this respect ? (a) Its tendency to lose an electron to form a cation (b) Its tendency to gain a single electron in its valence shell to attain stable electronic configuration (c) Its low negative electron enthalpy value (d) Its small size
Answer» Question 1 Hydrogen resembles halogens in many respects for which several factors are responsible. Of the following factors which one is most important in this respect ? (a) Its tendency to lose an electron to form a cation (b) Its tendency to gain a single electron in its valence shell to attain stable electronic configuration (c) Its low negative electron enthalpy value (d) Its small size

37.

Question 1 Hydrogen resembles halogens in many respects for which several factors are responsible. Of the following factors which one is most important in this respect ? (a) Its tendency to lose an electron to form a cation (b) Its tendency to gain a single electron in its valence shell to attain stable electronic configuration (c) Its low negative electron enthalpy value (d) Its small size

Answer»

Question 1

Hydrogen resembles halogens in many respects for which several factors are responsible. Of the following factors which one is most important in this respect ?

(a) Its tendency to lose an electron to form a cation

(b) Its tendency to gain a single electron in its valence shell to attain stable electronic configuration

(c) Its low negative electron enthalpy value

(d) Its small size

Discussion

38.	The structure of the compound that gives a tribromo derivative with bromine water is:
Answer» The structure of the compound that gives a tribromo derivative with bromine water is:

Discussion

39.	if 2³³is divided by 17 ,then the remainder is (b
Answer» if 2³³is divided by 17 ,then the remainder is (b

Discussion

40.	25 mL of a solution of barium hydroxide on titration with a 0.1 M solution of HCl gave a titre value of 35 mL. The molarity of the barium hydroxide solution is:
Answer» $25 mL$ of a solution of barium hydroxide on titration with a $0.1 M$ solution of $H C l$ gave a titre value of $35 mL$ . The molarity of the barium hydroxide solution is:

Discussion

41.	How many grams of sodium carbonate is obtained by heating 8.4 g of NaHCO3(s)?
Answer» How many grams of sodium carbonate is obtained by heating $8.4 g$ of $N a H C O_{3} (s)$ ?

Discussion

42.	Consider the chemical reaction and identify the product “A”:
Answer» Consider the chemical reaction and identify the product “A”:

42.

Consider the chemical reaction and identify the product “A”:

Answer»

Consider the chemical reaction and identify the product “A”:

Discussion

43.	22. 1 mole of an ideal gas A (CV=3R) and 2 mole of an ideal gas B are (CV=3/2R) taken in a container and expanded reversible and adiabatically from 1 litre to 4 litre starting from initial temp. of 320K. Find U
Answer» 22. 1 mole of an ideal gas A (CV=3R) and 2 mole of an ideal gas B are (CV=3/2R) taken in a container and expanded reversible and adiabatically from 1 litre to 4 litre starting from initial temp. of 320K. Find U

Discussion

44.	Identify a mechanism by which a colloidal solution can be purified.
Answer» Identify a mechanism by which a colloidal solution can be purified.

Discussion

45.	Which Of the following 0.2m aqueous solutions will exhibit the largest freezing point depression. 1) glucose 2) sucrose 3)urea 4)nacl
Answer» Which Of the following 0.2m aqueous solutions will exhibit the largest freezing point depression. 1) glucose 2) sucrose 3)urea 4)nacl

Discussion

46.	Which of the following compounds does not undergo nucleophilic substitution reactions [KCET 1998]
Answer» Which of the following compounds does not undergo nucleophilic substitution reactions [KCET 1998]

46.

Which of the following compounds does not undergo nucleophilic substitution reactions [KCET 1998]

Answer»

Which of the following compounds does not undergo nucleophilic

substitution reactions

[KCET 1998]

Discussion

47.	Why SN¹ reaction mechanism is not applicable for the following haloalkane :CH3-Br
Answer» Why SN¹ reaction mechanism is not applicable for the following haloalkane : CH3-Br

Discussion

48.	If unit of time is taken as 10 s, unit of mass 5 kg and unit of length 20 m, then convert 1 J energy in new unit of energy.
Answer» If unit of time is taken as 10 s, unit of mass 5 kg and unit of length 20 m, then convert 1 J energy in new unit of energy.

Discussion

49.	An electrochemical cell has two half cell reactions as, Y3++3e−→Y: E=0.22V Z→Z3++3e−: E=2.27V Calculate the Ecell.
Answer» An electrochemical cell has two half cell reactions as, $Y^{3 +} + 3 e^{-} \to Y : E = 0.22 V$ $Z \to Z^{3 +} + 3 e^{-} : E = 2.27 V$ Calculate the $E_{c e l l}$ .

Discussion

50.	CH3)2CO + H2N–OH Product. The number of sigma and pi bonds and lone pair of electrons on the product formed sigma pi lone pairs(1) 10 1 3(2) 11 1 3(3) 9 1 2(4) 11 1 2Options: (1) (2) (3) (4)
Answer» CH3)2CO + H2N–OH Product. The number of sigma and pi bonds and lone pair of electrons on the product formed sigma pi lone pairs (1) 10 1 3 (2) 11 1 3 (3) 9 1 2 (4) 11 1 2 Options: (1) (2) (3) (4)

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Give theIUPAC names of the following compounds:(a) (b) (c) (d) (e) (f) Cl2CHCH2OH

HF is weak acid in comparison to HBr, HCl and HI due to

Which element has highest positive value of electron gain enthalpy?

Which of the following can be a conjugate system ?

For the reaction 2NO(g)⇌N2(g)+O2(g),ΔH=−180 kJ mol−1. Which of the following facts does not hold well?

Vapour pressure of pure benzene is 119 torr and that of toluene is 37 torr at the same temperature . Mole fraction of toluene in vapour phase which is in equilibrium with a solution of benzene and toluene having a mole fraction of toluene 0.50 ,will be

if E^°=M^{+2}\vert M=x Volt & E^° x^-\vert x=y volt then s†an dard cell potential i

Propose product with a appropriate stereochemistry in the following SN2 reaction.

The equilibrium constant for the reaction, is 50 at a particular temperature. If equilibrium concentrations of CO and CH3OH are 2 × 10–1 M and 2.5 × 10–2 M respectively then equilibrium concentration of H2 is

How many significant figures are there in 6.02×10^24 ?

The non-stoichiometric compound Fe0.94O is formed when x% of Fe2+ ions are replaced by Fe3+ ions then x is

Internal shell is present in:

Metallic nature and basic nature of the oxides ........ as we move along a period

Which of the following groups contains all polysaccharides

Chloroamphenicol is an

Writebond line formulas for: Isopropyl alcohol,2,3-Dimethyl butanal, Heptan-4-one.

Is the statemtn correct- Organo cadmium compounds attack acid chlorides only and not ketones?

What is the cm

55 Hclo>hclo2>hclo3>hclo4. Explain the reason of oxidizing power of these molecules.

In the nitration of benzene with a mixture of conc HNO3 and conc H2SO4, the active species involved are

Explain why cations are smaller and anions larger in radii than their parent atoms?

which of the fillowung is not a reducing agent1( So2 2) SeO2 3)TeO 4) SO3 also explain other option

1. Calculate the volume occupied by 7 grams of hydrogen gas at 27 degree Celsius and 750 mm of Hg pressure.

Ethyl ester. The product P will be

Which of the following is a correct priority order of functional groups?

The de borglie wavelength of an electron in first orbit of hydrogen atom is equal to

The solubility of Ba(OH)2.8H2O in water at 288 K is 5.6g per 100 g of water. What is morality of hydroxide ions in saturated solution of barium hydroxide at 288 K?(atomic masses:Ba - 137,O-16,H-1)

A solution of 1.25 g of a non-electrolyte in 20 g of water freezes at 271.94 K. If Kf = 1.86 K/molality then the molecular wt. of the solute is : (1) 90.1 g/mol (2) 90.5 g/mol (3) 92.4 g/mol (4) 96.01 g/mol

What is the energy order of orbitals of uni-electronic species?

If ketone and an alkene are in the same compound and the compound is made to react with H²/ Ni (1 equivalent ) then alkene will attack or carbonyl ?

The total number of electrons in all bonding molecular orbitals of O2−2 is(Round off to the Nearest Integer).

44.What is the order of melting points and boiling points for halides of group 1 and group 2 elements. Give both orders,viz., for the same metal and same halide for both the groups.

Q. CH_{3 }I\xrightarrow A CH_3CN\xrightarrow{H_2/Ni}B find A&B. a\rbrack NH_3, CH_3NH_2 b\rbrack KCN, CH_3NH_2 c\rbrack HCN, C_2H_5NH_2 d\rbrack KCN, C_2H_5NH_2

Haemoglobin contains 0.334 % of iron by weight.The molecular weight of haemoglobin isapproximately 67200/The number of iron atoms(Atomic weight of Fe is 56)) present in onemolecule of haemoglobin is

Q. Henry's law constant for molality of CH4 in benzene at 298 K is 3.8 × 103 mm of Hg. Calculate solubility of CH4 in benzene at 760 mm of Hg ?(1) 5.1m(2) 7.5m(3) 2.7m(4) 3.2m

The structure of the compound that gives a tribromo derivative with bromine water is:

if 2³³is divided by 17 ,then the remainder is (b

25 mL of a solution of barium hydroxide on titration with a 0.1 M solution of HCl gave a titre value of 35 mL. The molarity of the barium hydroxide solution is:

How many grams of sodium carbonate is obtained by heating 8.4 g of NaHCO3(s)?

Consider the chemical reaction and identify the product “A”:

22. 1 mole of an ideal gas A (CV=3R) and 2 mole of an ideal gas B are (CV=3/2R) taken in a container and expanded reversible and adiabatically from 1 litre to 4 litre starting from initial temp. of 320K. Find U

Identify a mechanism by which a colloidal solution can be purified.

Which Of the following 0.2m aqueous solutions will exhibit the largest freezing point depression. 1) glucose 2) sucrose 3)urea 4)nacl

Which of the following compounds does not undergo nucleophilic substitution reactions [KCET 1998]

Why SN¹ reaction mechanism is not applicable for the following haloalkane :CH3-Br

If unit of time is taken as 10 s, unit of mass 5 kg and unit of length 20 m, then convert 1 J energy in new unit of energy.

An electrochemical cell has two half cell reactions as, Y3++3e−→Y: E=0.22V Z→Z3++3e−: E=2.27V Calculate the Ecell.

CH3)2CO + H2N–OH Product. The number of sigma and pi bonds and lone pair of electrons on the product formed sigma pi lone pairs(1) 10 1 3(2) 11 1 3(3) 9 1 2(4) 11 1 2Options: (1) (2) (3) (4)