46295 + Interview Questions in Chemistry Page 34 InterviewSolution

1651.	10 mL of C2H4 (g) is exploded with O2 (excess). The contraction in volume will be
Answer» 10 mL of C2H4 (g) is exploded with O2 (excess). The contraction in volume will be

Discussion

1652.	corpusclar theory
Answer» corpusclar theory

Discussion

1653.	Acetaldehyde cannot give:
Answer» Acetaldehyde cannot give:

Discussion

1654.	Stability of the species Li2, Li−2 and Li+2 increases in the order:
Answer» Stability of the species $L i_{2}$ , $L i_{2}^{-}$ and $L i_{2}^{+}$ increases in the order:

Discussion

1655.	1 What is meant by low spin and inner orbital in VBT
Answer» 1 What is meant by low spin and inner orbital in VBT

Discussion

1656.	a small object is placed 20cm in front of a block of glass 10cm thick and its farther side silvered . the image is formed 22cm behind the silvered face . find the refractive index of glass ?
Answer» a small object is placed 20cm in front of a block of glass 10cm thick and its farther side silvered . the image is formed 22cm behind the silvered face . find the refractive index of glass ?

Discussion

1657.	17. The amount of NaOH required to neutralise 1500 cm3 of 0.1 N HCl is
Answer» 17. The amount of NaOH required to neutralise 1500 cm3 of 0.1 N HCl is

Discussion

1658.	3A solution contains Fe2, Fe3 and I ions. This solutionwas treated with iodine at 35^° C. E^° for Fe3 /Fe2+ is+0.77 V and E^° for I/21 =0.536 V. The favourableredox reaction is\lbrack AIPMT (Mains)-2011\rbrack
Answer» 3A solution contains Fe2, Fe3 and I ions. This solutionwas treated with iodine at 35^° C. E^° for Fe3 /Fe2+ is+0.77 V and E^° for I/21 =0.536 V. The favourableredox reaction is\lbrack AIPMT (Mains)-2011\rbrack

Discussion

1659.	Describe Grahams law of diffusion in complete detail.
Answer» Describe Grahams law of diffusion in complete detail.

Discussion

1660.	24 g of carbon is burnt in presence of air, the gas produced form 1M dibasic acid when passed through 1L water, then correct stat ement is(1)12 g C react to form CO2(2)8 g C react to form CO(3)16 g C react to form CO(4)9g C react to form CO_{
Answer» 24 g of carbon is burnt in presence of air, the gas produced form 1M dibasic acid when passed through 1L water, then correct stat ement is(1)12 g C react to form CO2(2)8 g C react to form CO(3)16 g C react to form CO(4)9g C react to form CO_{

Discussion

1661.	At1127 K and 1 atm pressure, a gaseous mixture of CO and CO2in equilibrium with solid carbon has 90.55% CO by massCalculateKcfor this reaction at the above temperature.
Answer» At 1127 K and 1 atm pressure, a gaseous mixture of CO and CO₂ in equilibrium with solid carbon has 90.55% CO by mass Calculate K_c for this reaction at the above temperature.

1661.

At1127 K and 1 atm pressure, a gaseous mixture of CO and CO2in equilibrium with solid carbon has 90.55% CO by massCalculateKcfor this reaction at the above temperature.

Answer»

At
1127 K and 1 atm pressure, a gaseous mixture of CO and CO₂
in equilibrium with solid carbon has 90.55% CO by mass

Calculate
K_c
for this reaction at the above temperature.

Discussion

1662.	If hcl is stronger than h2so4 then why does h2so4 have a weaker conjugate base than hcl ?
Answer» If hcl is stronger than h2so4 then why does h2so4 have a weaker conjugate base than hcl ?

Discussion

1663.	6. N moles of a diaotmic gas in a cylinder are at a temperature T. Heat is supplied to the cylinder such that the temperature remains constant but n moles of the diatomic gas get converted into monoatomic gas. What is the change in the total kinetic energy of the gas ? (1) 0. (2) 5/2 nRT (3)3/2 nRT (4) 1/2 nRT (4) nRT 2
Answer» 6. N moles of a diaotmic gas in a cylinder are at a temperature T. Heat is supplied to the cylinder such that the temperature remains constant but n moles of the diatomic gas get converted into monoatomic gas. What is the change in the total kinetic energy of the gas ? (1) 0. (2) 5/2 nRT (3)3/2 nRT (4) 1/2 nRT (4) nRT 2

Discussion

1664.	Which of the following biphenyls is optically active?
Answer» Which of the following biphenyls is optically active?

Discussion

1665.	measurement of the conductivity of ionic solutions
Answer» measurement of the conductivity of ionic solutions

Discussion

1666.	pH of 10^-8 M HCl is
Answer» pH of 10^-8 M HCl is

Discussion

1667.	Whydoes the following reaction occur?(aq)+ 2F–(aq) + 6H+(aq)→ XeO3(g)+ F2(g)+ 3H2O(l)Whatconclusion about the compound Na4XeO6(of which is a part) can be drawn from the reaction.
Answer» Why does the following reaction occur? (aq) + 2F^– (aq) + 6H⁺(aq) → XeO₃(g) + F₂(g) + 3H₂O(l) What conclusion about the compound Na₄XeO₆ (of which is a part) can be drawn from the reaction.

1667.

Whydoes the following reaction occur?(aq)+ 2F–(aq) + 6H+(aq)→ XeO3(g)+ F2(g)+ 3H2O(l)Whatconclusion about the compound Na4XeO6(of which is a part) can be drawn from the reaction.

Answer»

Why
does the following reaction occur?

(aq)
+ 2F^–
(aq) + 6H⁺(aq)
→ XeO₃(g)
+ F₂(g)
+ 3H₂O(l)

What
conclusion about the compound Na₄XeO₆
(of which

is a part) can be drawn from the reaction.

Discussion

1668.	what is complex formation?
Answer» what is complex formation?

Discussion

1669.	On monochlorination of 2-methylbutane, the number of chiral compounds formed are:
Answer» On monochlorination of 2-methylbutane, the number of chiral compounds formed are:

Discussion

1670.	(S2o3)2-(S2o6)2-Oxidation states of sulphur atoms?
Answer» (S2o3)2- (S2o6)2- Oxidation states of sulphur atoms?

Discussion

1671.	The element showing most stable +8 oxidation state in its compound is
Answer» The element showing most stable +8 oxidation state in its compound is

Discussion

1672.	Cannizaro’s reaction is not given by _____________.(A) 1-Methylcyclohexane carbaldehyde (B) Benzene carbaldehyde(C) Methanal (D) Ethanal
Answer» Cannizaro’s reaction is not given by _____________. (A) 1-Methylcyclohexane carbaldehyde (B) Benzene carbaldehyde (C) Methanal (D) Ethanal

Discussion

1673.	Find the number of molecules which are having 3C–2e and which have 2C-2e bond from the following.Al2(CH3)6, Si2H6, B2H6, C2H6, Si2Cl6, Al2Cl6(Explain with structure of each to clear concept)
Answer» Find the number of molecules which are having 3C–2e and which have 2C-2e bond from the following. Al2(CH3)6, Si2H6, B2H6, C2H6, Si2Cl6, Al2Cl6 (Explain with structure of each to clear concept)

Discussion

1674.	Number of chain isomer of C5H12 is :
Answer» Number of chain isomer of $C_{5} H_{12}$ is :

Discussion

1675.	The simplest ion of Pyro-silicates is:
Answer» The simplest ion of Pyro-silicates is:

Discussion

1676.	Nitrobenzene on nitration gives [NCERT 1978; CPMT 1989]
Answer» Nitrobenzene on nitration gives [NCERT 1978; CPMT 1989]

1676.

Nitrobenzene on nitration gives [NCERT 1978; CPMT 1989]

Answer»

Nitrobenzene on nitration gives

[NCERT 1978; CPMT 1989]

Discussion

1677.	Ch3-o-c(ch3)3 + HI (1 eq)
Answer» Ch3-o-c(ch3)3 + HI (1 eq)

Discussion

1678.	Which one of the following is the strongest base ?
Answer» Which one of the following is the strongest base ?

Discussion

1679.	An electron, a proton, a deuteron and an α− particle are accelerated by the same potential V. If λe, λp, λd and λα represents the de-Broglie wavelengths of electron, proton, deuteron and α− particle respectively. Which of the following statement(s) is/are correct.
Answer» An electron, a proton, a deuteron and an $α -$ particle are accelerated by the same potential $V$ . If $λ_{e}, λ_{p}, λ_{d}$ and $λ_{α}$ represents the de-Broglie wavelengths of electron, proton, deuteron and $α -$ particle respectively. Which of the following statement(s) is/are correct.

Discussion

1680.	What volume of 1M NaOH(in ml) will be required to react completely with 100g of oleum which is 109% labelled?
Answer» What volume of 1M NaOH(in ml) will be required to react completely with 100g of oleum which is 109% labelled?

Discussion

1681.	Which of the following colligative properties is best suited for finding the molar mass of a substance?
Answer» Which of the following colligative properties is best suited for finding the molar mass of a substance?

Discussion

1682.	How many bonds are formed between two atoms with 6 shared electrons?
Answer» How many bonds are formed between two atoms with 6 shared electrons?

Discussion

1683.	Which of the following(s) is/are an examples of −E effect?
Answer» Which of the following(s) is/are an examples of $- E$ effect?

Discussion

1684.	CH3−CH3\|CH−CH2−CH=CH−CH3
Answer» $C H_{3} - C H_{3} \| C H - C H_{2} - C H = C H - C H_{3}$

Discussion

1685.	Chemisorption
Answer» Chemisorption

Discussion

1686.	Choose the products formed by action of Na2CO3 on H3BO3
Answer» Choose the products formed by action of $N a_{2} C O_{3} on H_{3} B O_{3}$

Discussion

1687.	Write the properties of Cathode rays.
Answer» Write the properties of Cathode rays.

Discussion

1688.	a given solution of hydrogen peroxide is 30 volume. its conc in terms of molarity is a. 9.1 Mb. 2.68 Mc. 2.5 Md. 26.8M
Answer» a given solution of hydrogen peroxide is 30 volume. its conc in terms of molarity is a. 9.1 M b. 2.68 M c. 2.5 M d. 26.8M

Discussion

1689.	12 Explain the mechanism for oxidation of ketone.
Answer» 12 Explain the mechanism for oxidation of ketone.

Discussion

1690.	Number of neutrons present in 1.7 g of ammonia is:
Answer» Number of neutrons present in $1.7 g$ of ammonia is:

Discussion

1691.	23. What will be the molar conductance lambda if resistivity is x for 0.1 N H2SO4 solution
Answer» 23. What will be the molar conductance lambda if resistivity is x for 0.1 N H2SO4 solution

Discussion

1692.	Arrange according to boiling point 2,2dimethylbutane. , 2,3dimethylbutane. ,3methylpentane. ,2methylpentane
Answer» Arrange according to boiling point 2,2dimethylbutane. , 2,3dimethylbutane. ,3methylpentane. ,2methylpentane

Discussion

1693.	Two p-block elements x(outer electronic configuration ns2, np3) and z (outer configuration ns2, np4) occupy neighbouring positions in a period. Using this information which of the following is correct with respect to their ionisation potential Ix and Iz.
Answer» Two p-block elements x(outer electronic configuration ${n s}^{2}$ , ${n p}^{3}$ ) and z (outer configuration ${n s}^{2}$ , ${n p}^{4}$ ) occupy neighbouring positions in a period. Using this information which of the following is correct with respect to their ionisation potential $I_{x}$ and $I_{z}$ .

Discussion

1694.	40. In a particular reaction the time required to complete half of the reaction was found to increase 16 times when the initial concentration of the reactant was reduced to one - forth . What is the order of the reaction ?
Answer» 40. In a particular reaction the time required to complete half of the reaction was found to increase 16 times when the initial concentration of the reactant was reduced to one - forth . What is the order of the reaction ?

Discussion

1695.	What is the pH of a solution in which 10 mL of 0.1 M Sr(OH)2 is added to 10 mL of 0.1 M HCl ?(Given: log5=0.7)
Answer» What is the $p H$ of a solution in which $10 mL$ of $0.1 M S r (O H)_{2}$ is added to $10 mL$ of $0.1 M H C l ?$ (Given: $log 5 = 0.7$ )

Discussion

1696.	71.Number of gram equivalents of H2SO4 present in 200 mL of M/10 H2So4 solution.
Answer» 71.Number of gram equivalents of H2SO4 present in 200 mL of M/10 H2So4 solution.

Discussion

1697.	The number of dihydric phenols possible with the molecular formula C6H6O2 is :- (1) 2 (2) 3 (3) 4 (4) 5
Answer» The number of dihydric phenols possible with the molecular formula C6H6O2 is :- (1) 2 (2) 3 (3) 4 (4) 5

Discussion

1698.	The Number of anti-bonding electron pairs in O2^{2-} molecular ion on the basis of molecular orbital theory is ( Atomic number of O is 8) How to be solve
Answer» The Number of anti-bonding electron pairs in O2^{2-} molecular ion on the basis of molecular orbital theory is ( Atomic number of O is 8) How to be solve

Discussion

1699.	The correct ground state configuration of copper atom is:
Answer» The correct ground state configuration of copper atom is:

Discussion

1700.	Writethe resonance structures of and.
Answer» Write the resonance structures of and.

Discussion

Explore topic-wise InterviewSolutions in .

10 mL of C2H4 (g) is exploded with O2 (excess). The contraction in volume will be

corpusclar theory

Acetaldehyde cannot give:

Stability of the species Li2, Li−2 and Li+2 increases in the order:

1 What is meant by low spin and inner orbital in VBT

a small object is placed 20cm in front of a block of glass 10cm thick and its farther side silvered . the image is formed 22cm behind the silvered face . find the refractive index of glass ?

17. The amount of NaOH required to neutralise 1500 cm3 of 0.1 N HCl is

3A solution contains Fe2, Fe3 and I ions. This solutionwas treated with iodine at 35^° C. E^° for Fe3 /Fe2+ is+0.77 V and E^° for I/21 =0.536 V. The favourableredox reaction is\lbrack AIPMT (Mains)-2011\rbrack

Describe Grahams law of diffusion in complete detail.

24 g of carbon is burnt in presence of air, the gas produced form 1M dibasic acid when passed through 1L water, then correct stat ement is(1)12 g C react to form CO2(2)8 g C react to form CO(3)16 g C react to form CO(4)9g C react to form CO_{

At1127 K and 1 atm pressure, a gaseous mixture of CO and CO2in equilibrium with solid carbon has 90.55% CO by massCalculateKcfor this reaction at the above temperature.

If hcl is stronger than h2so4 then why does h2so4 have a weaker conjugate base than hcl ?

Which of the following biphenyls is optically active?

measurement of the conductivity of ionic solutions

pH of 10^-8 M HCl is

Whydoes the following reaction occur?(aq)+ 2F–(aq) + 6H+(aq)→ XeO3(g)+ F2(g)+ 3H2O(l)Whatconclusion about the compound Na4XeO6(of which is a part) can be drawn from the reaction.

what is complex formation?

On monochlorination of 2-methylbutane, the number of chiral compounds formed are:

(S2o3)2-(S2o6)2-Oxidation states of sulphur atoms?

The element showing most stable +8 oxidation state in its compound is

Cannizaro’s reaction is not given by _____________.(A) 1-Methylcyclohexane carbaldehyde (B) Benzene carbaldehyde(C) Methanal (D) Ethanal

Find the number of molecules which are having 3C–2e and which have 2C-2e bond from the following.Al2(CH3)6, Si2H6, B2H6, C2H6, Si2Cl6, Al2Cl6(Explain with structure of each to clear concept)

Number of chain isomer of C5H12 is :

The simplest ion of Pyro-silicates is:

Nitrobenzene on nitration gives [NCERT 1978; CPMT 1989]

Ch3-o-c(ch3)3 + HI (1 eq)

Which one of the following is the strongest base ?

An electron, a proton, a deuteron and an α− particle are accelerated by the same potential V. If λe, λp, λd and λα represents the de-Broglie wavelengths of electron, proton, deuteron and α− particle respectively. Which of the following statement(s) is/are correct.

What volume of 1M NaOH(in ml) will be required to react completely with 100g of oleum which is 109% labelled?

Which of the following colligative properties is best suited for finding the molar mass of a substance?

How many bonds are formed between two atoms with 6 shared electrons?

Which of the following(s) is/are an examples of −E effect?

CH3−CH3|CH−CH2−CH=CH−CH3

Chemisorption

Choose the products formed by action of Na2CO3 on H3BO3

Write the properties of Cathode rays.

a given solution of hydrogen peroxide is 30 volume. its conc in terms of molarity is a. 9.1 Mb. 2.68 Mc. 2.5 Md. 26.8M

12 Explain the mechanism for oxidation of ketone.

Number of neutrons present in 1.7 g of ammonia is:

23. What will be the molar conductance lambda if resistivity is x for 0.1 N H2SO4 solution

Arrange according to boiling point 2,2dimethylbutane. , 2,3dimethylbutane. ,3methylpentane. ,2methylpentane

Two p-block elements x(outer electronic configuration ns2, np3) and z (outer configuration ns2, np4) occupy neighbouring positions in a period. Using this information which of the following is correct with respect to their ionisation potential Ix and Iz.

40. In a particular reaction the time required to complete half of the reaction was found to increase 16 times when the initial concentration of the reactant was reduced to one - forth . What is the order of the reaction ?

What is the pH of a solution in which 10 mL of 0.1 M Sr(OH)2 is added to 10 mL of 0.1 M HCl ?(Given: log5=0.7)

71.Number of gram equivalents of H2SO4 present in 200 mL of M/10 H2So4 solution.

The number of dihydric phenols possible with the molecular formula C6H6O2 is :- (1) 2 (2) 3 (3) 4 (4) 5

The Number of anti-bonding electron pairs in O2^{2-} molecular ion on the basis of molecular orbital theory is ( Atomic number of O is 8) How to be solve

The correct ground state configuration of copper atom is:

Writethe resonance structures of and.