46295 + Interview Questions in Chemistry

1.	Predict the products of electrolysis in the following 1. Aqueous sodium chloride solution using platinum electrodes 2. Aqueous copper sulphate solution using platinum electrodes
Answer» Predict the products of electrolysis in the following 1. Aqueous sodium chloride solution using platinum electrodes 2. Aqueous copper sulphate solution using platinum electrodes

1.

Predict the products of electrolysis in the following 1. Aqueous sodium chloride solution using platinum electrodes 2. Aqueous copper sulphate solution using platinum electrodes

Answer»

Predict the products of electrolysis in the following

1. Aqueous sodium chloride solution using platinum electrodes

2. Aqueous copper sulphate solution using platinum electrodes

2.	What are the monomer(s) of nylon-2-nylon-6 polymer
Answer» What are the monomer(s) of nylon-2-nylon-6 polymer

Discussion

3.	Whether gold occurs in combined state with silver
Answer» Whether gold occurs in combined state with silver

Discussion

4.	36.5% HCl has density 1.20g/ml. The molarity and molality are..
Answer» 36.5% HCl has density 1.20g/ml. The molarity and molality are..

Discussion

5.	Which of the following is the correct order of increasing size?
Answer» Which of the following is the correct order of increasing size?

Discussion

6.	Question 24 Nickel atom can lose two electrons to form Ni2+ ion. The atomic number of nickel is 28. From which orbital will nickel lose two electrons ?
Answer» Question 24 Nickel atom can lose two electrons to form $N i^{2 +}$ ion. The atomic number of nickel is 28. From which orbital will nickel lose two electrons ?

6.

Question 24 Nickel atom can lose two electrons to form Ni2+ ion. The atomic number of nickel is 28. From which orbital will nickel lose two electrons ?

Answer»

Question 24

Nickel atom can lose two electrons to form $N i^{2 +}$ ion. The atomic number of nickel is 28. From which orbital will nickel lose two electrons ?

Discussion

7.	Electronic configuration of some elements is given in colum I and their electron gain enethalpies are given in Column II mathc the electronic configuration with electron gain enthalpy ColumnI(Electronic configuration)ColumnIIElectron gain enthalpy / KJ mol−1A.1s22s22p6−53B.1s2,2s2,2p6,3s1−328C.1s2,2s2,2p5−141D.1s2,2s2,2p4+48
Answer» Electronic configuration of some elements is given in colum I and their electron gain enethalpies are given in Column II mathc the electronic configuration with electron gain enthalpy $\begin{matrix} C o l u m n I (E l e c t r o n i c c o n f i g u r a t i o n) & C o l u m n I I E l e c t r o n g a i n e n t h a l p y / K J m o l^{- 1} A . 1 s^{2} 2 s^{2} 2 p^{6} & - 53 B . 1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{1} & - 328 C . 1 s^{2}, 2 s^{2}, 2 p^{5} & - 141 D . 1 s^{2}, 2 s^{2}, 2 p^{4} & + 48 \end{matrix}$

7.

Electronic configuration of some elements is given in colum I and their electron gain enethalpies are given in Column II mathc the electronic configuration with electron gain enthalpy ColumnI(Electronic configuration)ColumnIIElectron gain enthalpy / KJ mol−1A.1s22s22p6−53B.1s2,2s2,2p6,3s1−328C.1s2,2s2,2p5−141D.1s2,2s2,2p4+48

Answer»

Electronic configuration of some elements is given in colum I and their electron gain enethalpies are given in Column II mathc the electronic configuration with electron gain enthalpy
$\begin{matrix} C o l u m n I (E l e c t r o n i c c o n f i g u r a t i o n) & C o l u m n I I E l e c t r o n g a i n e n t h a l p y / K J m o l^{- 1} A . 1 s^{2} 2 s^{2} 2 p^{6} & - 53 B . 1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{1} & - 328 C . 1 s^{2}, 2 s^{2}, 2 p^{5} & - 141 D . 1 s^{2}, 2 s^{2}, 2 p^{4} & + 48 \end{matrix}$

Discussion

8.	The vapour density of completely dissociated NH4Cl would be -
Answer» The vapour density of completely dissociated NH₄Cl would be -

Discussion

9.	When body temperature is high, doctors advice consumption of light food. This is because
Answer» When body temperature is high, doctors advice consumption of light food. This is because

Discussion

10.	2 mole of an ideal at 27∘C expands iso - thermally and reversibly from a volume of 4 litre to 40 litre. The work done(in kJ)by the gas is:
Answer» 2 mole of an ideal at $27^{\circ} C$ expands iso - thermally and reversibly from a volume of 4 litre to 40 litre. The work done(in kJ)by the gas is:

Discussion

11.	Which of the following is formed when lithium is heated in air ?
Answer» Which of the following is formed when lithium is heated in air ?

Discussion

12.	The IUPAC name of the given structure E is
Answer» The IUPAC name of the given structure E is

Discussion

13.	Which of the following will have highest density?
Answer» Which of the following will have highest density?

Discussion

14.	The reagent that can effect the following conversion is:
Answer» The reagent that can effect the following conversion is:

Discussion

15.	The intermolecular forces existing between two non polar molecules are called
Answer» The intermolecular forces existing between two non polar molecules are called

Discussion

16.	Consider the following energy profile Which of the following reactant is most suited for the above energy profile ?
Answer» Consider the following energy profile Which of the following reactant is most suited for the above energy profile ?

Discussion

17.	Can you please explain about Gay lussacs law with some examples and questions
Answer» Can you please explain about Gay lussacs law with some examples and questions

Discussion

18.	What is the relation between edge length (a) and radius of sphere (r) for a face centred unit cell?
Answer» What is the relation between edge length (a) and radius of sphere (r) for a face centred unit cell?

Discussion

19.	The nitration of a compound is due to the
Answer» The nitration of a compound is due to the

19.

The nitration of a compound is due to the

Answer»

The nitration of a compound is due to the

Discussion

20.	'A' and 'B' respectively are
Answer» 'A' and 'B' respectively are

Discussion

21.	Which of the following is non-aromatic?
Answer» Which of the following is non-aromatic?

Discussion

22.	Which of the following is dependent on temperature?
Answer» Which of the following is dependent on temperature?

Discussion

23.	When 50 ml of 2M solution of N2O5 was heated, 0.28L of O2 at NTP was fgormed after 30 min. Cal the conc of unreacted N2O5 at that time and find rate of reaction.
Answer» When 50 ml of 2M solution of N2O5 was heated, 0.28L of O2 at NTP was fgormed after 30 min. Cal the conc of unreacted N2O5 at that time and find rate of reaction.

Discussion

24.	In solid argon, the atoms are held together by
Answer» In solid argon, the atoms are held together by

24.

In solid argon, the atoms are held together by

Answer»

In solid argon, the atoms are held together by

Discussion

25.	Define thermoplastic and thermosetting polymers. Give one example of each.
Answer» Define thermoplastic and thermosetting polymers. Give one example of each.

Discussion

26.	Which of the following graphs are correct for the given reactions; H2(g)+CO2(g)⇌H2O(g)+CO(g) Assume initially only H2 and CO2 are present :
Answer» Which of the following graphs are correct for the given reactions; $H_{2} (g) + C O_{2} (g) ⇌ H_{2} O (g) + C O (g)$ Assume initially only $H_{2}$ and $C O_{2}$ are present :

Discussion

27.	Which of the following compound does have chiral carbon atom?
Answer» Which of the following compound does have chiral carbon atom?

Discussion

28.	Which of the following an position isomers
Answer» Which of the following an position isomers

28.

Which of the following an position isomers

Answer»

Which of the following an position isomers

Discussion

29.	Oxidation State of C in CH3OH is
Answer» Oxidation State of C in $C H_{3} O H$ is

Discussion

30.	Consider the following reaction, PhenolZn dust−−−−→XCH3Cl−−−−−−−−→Anhyd AlCl3YAlk KMnO4−−−−−−−→Z
Answer» Consider the following reaction, $P h e n o l Z n d u s t - --- \to X C H_{3} C l - ------- \to A n h y d A l C l_{3} Y A l k K M n O_{4} - ------ \to Z$

Discussion

31.	Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?
Answer» Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?

Discussion

32.	Molarity of NaOH in a solution prepared by dissolving 4 g of NaOH in enough water to form 250 ml of solution is:
Answer» Molarity of NaOH in a solution prepared by dissolving 4 g of NaOH in enough water to form 250 ml of solution is:

Discussion

33.	Molecualr weight of phorone is equal to
Answer» Molecualr weight of phorone is equal to

Discussion

34.	Which of the following is the fischer projection of the compound given below?
Answer» Which of the following is the fischer projection of the compound given below?

Discussion

35.	A helium atom is two times heavier than a hydrogen molecule. At 298 K, the average kinetic energy of a helium atom is
Answer» A helium atom is two times heavier than a hydrogen molecule. At 298 K, the average kinetic energy of a helium atom is

Discussion

36.	All the released energy from the reaction X→Y,ΔrG0=−193 kJ mol−1 is used for oxidizing M+→M3++2e−, E0=−0.25 V Under standard conditions, the number of moles of M+ oxidized when one mole of X is converted to Y is [F=96500 C mol−1]
Answer» All the released energy from the reaction $X \to Y, Δ_{r} G^{0} = - 193 {kJ mol}^{- 1}$ is used for oxidizing $M^{+} \to M^{3 +} + 2 e^{-}, E^{0} = - 0.25 V$ Under standard conditions, the number of moles of $M^{+}$ oxidized when one mole of $X$ is converted to $Y$ is [ $F = 96500 {C mol}^{- 1}$ ]

Discussion

37.	Mark the correct statement
Answer» Mark the correct statement

Discussion

38.	Figure out the R - S nomenclature for the following compound. Type R or S as your answer.___
Answer» Figure out the R - S nomenclature for the following compound. Type R or S as your answer.___

Discussion

39.	Can you please explain the concept of equivalent weights of different substances?
Answer» Can you please explain the concept of equivalent weights of different substances?

Discussion

40.	According to molecular orbital theory, which of the following does not exist?
Answer» According to molecular orbital theory, which of the following does not exist?

Discussion

41.	The pre-expontial factor in the Arrhenius equation of a first order reaction has the units -
Answer» The pre-expontial factor in the Arrhenius equation of a first order reaction has the units -

Discussion

42.	Question 38 Explain the solubility rule "like dissolves like" in terms of intermolecular forces that exist in solutions.
Answer» Question 38 Explain the solubility rule "like dissolves like" in terms of intermolecular forces that exist in solutions.

Discussion

43.	Aldol condensation will not be observed in
Answer» Aldol condensation will not be observed in

43.

Aldol condensation will not be observed in

Answer»

Aldol condensation will not be observed in

Discussion

44.	Which of the following reagent is useful for separating aniline from nitrobenzene?
Answer» Which of the following reagent is useful for separating aniline from nitrobenzene?

Discussion

45.	In a Thomson set-up for the determination of e/m, electrons accelerated by 2.5 kV enter the region of crossed electric and magnetic fields of strengths 3.6×104VM−1 and 1.2×10−3T respectively and go through undeflected. The measured value of e/m of the electron is equal to
Answer» In a Thomson set-up for the determination of e/m, electrons accelerated by 2.5 kV enter the region of crossed electric and magnetic fields of strengths $3.6 \times 10^{4} V M^{- 1}$ and $1.2 \times 10^{- 3} T$ respectively and go through undeflected. The measured value of e/m of the electron is equal to

Discussion

46.	An aromatic compound 'A' on treatment with questions ammonia and heating forms compound 'B' which on heating with Br2 and KOH forms a compound 'C' of molecular formula C6H7N. Write the structures and IUPAC names of compounds A,B and C.
Answer» An aromatic compound 'A' on treatment with questions ammonia and heating forms compound 'B' which on heating with $B r_{2}$ and KOH forms a compound 'C' of molecular formula $C_{6} H_{7} N$ . Write the structures and IUPAC names of compounds A,B and C.

Discussion

47.	In a 1st order reac. A-> products the conc. Of reactant decreases to 6.25% of its initial value in 80 min. What is 1) the k 2)R,100minafter the start if the initial conc. Is 0.2 mole/litre
Answer» In a 1st order reac. A-> products the conc. Of reactant decreases to 6.25% of its initial value in 80 min. What is 1) the k 2)R,100minafter the start if the initial conc. Is 0.2 mole/litre

Discussion

48.	Find the wrong pair.
Answer» Find the wrong pair.

Discussion

49.	In the following reaction, how many moles of KI react with 12.5 mol of K2S2O8? K2S2O8(aq)+2KI(aq)→2K2SO4(aq)+I2(s)
Answer» In the following reaction, how many moles of $K I$ react with 12.5 mol of $K_{2} S_{2} O_{8}$ ? $K_{2} S_{2} O_{8 (a q)} + 2 K I_{(a q)} \to 2 K_{2} S O_{4 (a q)} + I_{2 (s)}$

Discussion

50.	In Rutherford’s experiment, generally the thin foil of heavy atoms, like gold, platinum etc. have been used to be bombarded by the α-particles. If the thin foil of light atoms like Aluminium etc. is used, what difference would be observed from the above results?
Answer» In Rutherford’s experiment, generally the thin foil of heavy atoms, like gold, platinum etc. have been used to be bombarded by the α-particles. If the thin foil of light atoms like Aluminium etc. is used, what difference would be observed from the above results?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Predict the products of electrolysis in the following 1. Aqueous sodium chloride solution using platinum electrodes 2. Aqueous copper sulphate solution using platinum electrodes

What are the monomer(s) of nylon-2-nylon-6 polymer

Whether gold occurs in combined state with silver

36.5% HCl has density 1.20g/ml. The molarity and molality are..

Which of the following is the correct order of increasing size?

Question 24 Nickel atom can lose two electrons to form Ni2+ ion. The atomic number of nickel is 28. From which orbital will nickel lose two electrons ?

The vapour density of completely dissociated NH4Cl would be -

When body temperature is high, doctors advice consumption of light food. This is because

2 mole of an ideal at 27∘C expands iso - thermally and reversibly from a volume of 4 litre to 40 litre. The work done(in kJ)by the gas is:

Which of the following is formed when lithium is heated in air ?

The IUPAC name of the given structure E is

Which of the following will have highest density?

The reagent that can effect the following conversion is:

The intermolecular forces existing between two non polar molecules are called

Consider the following energy profile Which of the following reactant is most suited for the above energy profile ?

Can you please explain about Gay lussacs law with some examples and questions

What is the relation between edge length (a) and radius of sphere (r) for a face centred unit cell?

The nitration of a compound is due to the

'A' and 'B' respectively are

Which of the following is non-aromatic?

Which of the following is dependent on temperature?

When 50 ml of 2M solution of N2O5 was heated, 0.28L of O2 at NTP was fgormed after 30 min. Cal the conc of unreacted N2O5 at that time and find rate of reaction.

In solid argon, the atoms are held together by

Define thermoplastic and thermosetting polymers. Give one example of each.

Which of the following graphs are correct for the given reactions; H2(g)+CO2(g)⇌H2O(g)+CO(g) Assume initially only H2 and CO2 are present :

Which of the following compound does have chiral carbon atom?

Which of the following an position isomers

Oxidation State of C in CH3OH is

Consider the following reaction, PhenolZn dust−−−−→XCH3Cl−−−−−−−−→Anhyd AlCl3YAlk KMnO4−−−−−−−→Z

Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?

Molarity of NaOH in a solution prepared by dissolving 4 g of NaOH in enough water to form 250 ml of solution is:

Molecualr weight of phorone is equal to

Which of the following is the fischer projection of the compound given below?

A helium atom is two times heavier than a hydrogen molecule. At 298 K, the average kinetic energy of a helium atom is

All the released energy from the reaction X→Y,ΔrG0=−193 kJ mol−1 is used for oxidizing M+→M3++2e−, E0=−0.25 V Under standard conditions, the number of moles of M+ oxidized when one mole of X is converted to Y is [F=96500 C mol−1]

Mark the correct statement

Figure out the R - S nomenclature for the following compound. Type R or S as your answer.___

Can you please explain the concept of equivalent weights of different substances?

According to molecular orbital theory, which of the following does not exist?

The pre-expontial factor in the Arrhenius equation of a first order reaction has the units -

Question 38 Explain the solubility rule "like dissolves like" in terms of intermolecular forces that exist in solutions.

Aldol condensation will not be observed in

Which of the following reagent is useful for separating aniline from nitrobenzene?

In a Thomson set-up for the determination of e/m, electrons accelerated by 2.5 kV enter the region of crossed electric and magnetic fields of strengths 3.6×104VM−1 and 1.2×10−3T respectively and go through undeflected. The measured value of e/m of the electron is equal to

An aromatic compound 'A' on treatment with questions ammonia and heating forms compound 'B' which on heating with Br2 and KOH forms a compound 'C' of molecular formula C6H7N. Write the structures and IUPAC names of compounds A,B and C.

In a 1st order reac. A-&gt; products the conc. Of reactant decreases to 6.25% of its initial value in 80 min. What is 1) the k 2)R,100minafter the start if the initial conc. Is 0.2 mole/litre

Find the wrong pair.

In the following reaction, how many moles of KI react with 12.5 mol of K2S2O8? K2S2O8(aq)+2KI(aq)→2K2SO4(aq)+I2(s)

In Rutherford’s experiment, generally the thin foil of heavy atoms, like gold, platinum etc. have been used to be bombarded by the α-particles. If the thin foil of light atoms like Aluminium etc. is used, what difference would be observed from the above results?

In a 1st order reac. A-> products the conc. Of reactant decreases to 6.25% of its initial value in 80 min. What is 1) the k 2)R,100minafter the start if the initial conc. Is 0.2 mole/litre