46295 + Interview Questions in Chemistry

1.	does nitrogen show rapid umbrella inversion? if yes then is it in tertary or quaternary amine?
Answer» does nitrogen show rapid umbrella inversion? if yes then is it in tertary or quaternary amine?

Discussion

2.	20 g of non-electrolyte, non-volatile solute (CxH2xOx) when dissolved in 100 g water at 100∘ C, lowers the vapour pressure of solution by (1100)th of the vapour pressure of pure water. What is formula of the compound?
Answer» $20 g$ of non-electrolyte, non-volatile solute $(C_{x} H_{2 x} O_{x})$ when dissolved in $100 g$ water at $100^{\circ} C$ , lowers the vapour pressure of solution by $(\frac{1}{100}) t h$ of the vapour pressure of pure water. What is formula of the compound?

Discussion

3.	Which of the following metal ion is present in Ziegler-Natta catalyst?
Answer» Which of the following metal ion is present in Ziegler-Natta catalyst?

Discussion

4.	A transistor operating in a common base configuration has forward current gain factor, α=0.99. If the emitter current changes by 1 mA, then the changes in the base current will be
Answer» A transistor operating in a common base configuration has forward current gain factor, $α = 0.99$ . If the emitter current changes by $1 mA$ , then the changes in the base current will be

Discussion

5.	Combine 0.2g atom of silicon with 21.3g of chlorine. Find the empirical formula of the compound formed.
Answer» Combine 0.2g atom of silicon with 21.3g of chlorine. Find the empirical formula of the compound formed.

Discussion

6.	A weak acid HA aftertreatment with 12 mL of 0.1 M strong base BOH has a pH of 5. At the end point,the volume of same base required is 26.6 mL. Ka of acid is:
Answer» A weak acid HA after treatment with 12 mL of 0.1 M strong base BOH has a pH of 5. At the end point, the volume of same base required is 26.6 mL. K_a of acid is:

Discussion

7.	46. Highest C-O bond length found in 1) [Mn(CO)6]+ 2) [Cr(CO)6] 3) [V(CO)6]- 4) same in all.
Answer» 46. Highest C-O bond length found in 1) [Mn(CO)6]+ 2) [Cr(CO)6] 3) [V(CO)6]- 4) same in all.

Discussion

8.	A 2g sample of xenon reacts with fluorine. The mass of compound produced is 3.158 g. The emperical formula of the compound is (1) XeF_2 (2) XeF_4 (3) XeF_5 (4) XeF_6
Answer» A 2g sample of xenon reacts with fluorine. The mass of compound produced is 3.158 g. The emperical formula of the compound is (1) XeF_2 (2) XeF_4 (3) XeF_5 (4) XeF_6

Discussion

9.	28. What is the hybridisation of first carbon. In CH3CH2OH / ethanol with formula
Answer» 28. What is the hybridisation of first carbon. In CH3CH2OH / ethanol with formula

Discussion

10.	Among the following, the conformation that corresponds to the most stable conformation of meso-butane-2,3-diol is:
Answer» Among the following, the conformation that corresponds to the most stable conformation of meso-butane- $2, 3$ -diol is:

Discussion

11.	Iodobenzene can be obtained by:
Answer» Iodobenzene can be obtained by:

Discussion

12.	Which of the following molecules is paramagnetic?
Answer» Which of the following molecules is paramagnetic?

Discussion

13.	Given below is a crossword puzzle based on this lesson. Use hints to fill in the blank spaces with letters that complete the words.Down (D) (1) Thorough washing(2) Animal fibre(3) Long thread like structureAcross (A)(1) Keeps warm(2) Its leaves are eaten by silkworms(3) Hatches from egg of moth
Answer» Given below is a crossword puzzle based on this lesson. Use hints to fill in the blank spaces with letters that complete the words. Down (D) (1) Thorough washing (2) Animal fibre (3) Long thread like structure Across (A) (1) Keeps warm (2) Its leaves are eaten by silkworms (3) Hatches from egg of moth

Discussion

14.	State Raoult’s law for a solution containing volatile components. Write two characteristics of the solution which obeys Raoult’s law at all concentrations.
Answer» State Raoult’s law for a solution containing volatile components. Write two characteristics of the solution which obeys Raoult’s law at all concentrations.

Discussion

15.	Derive the equation of distance covered in nth second step by step
Answer» Derive the equation of distance covered in nth second step by step

Discussion

16.	define the term critical point.
Answer» define the term critical point.

Discussion

17.	83. Concentration aqueous sulphuric acid is 98% H2SO4 by mass and has a density of 1.80g/ml. Volume of acid required to make one litre of 0.1 M H2SO4 is 1)5.55 2)11.10 3)16.65 4)22.20
Answer» 83. Concentration aqueous sulphuric acid is 98% H2SO4 by mass and has a density of 1.80g/ml. Volume of acid required to make one litre of 0.1 M H2SO4 is 1)5.55 2)11.10 3)16.65 4)22.20

Discussion

18.	32. Find the number of maximum electron present in an atom having n+l =3
Answer» 32. Find the number of maximum electron present in an atom having n+l =3

Discussion

19.	Give proper definition for deferentiation
Answer» Give proper definition for deferentiation

Discussion

20.	16. One mole of ideal gas is allowed to expend reversibly and adiabatically from a temperature of 27^° C. If the work done during the process is 3kJ. The final temperature will be equal to (CV=20J/K) (A) 150K (B) 100K (C) 26.85K (D) 295K
Answer» 16. One mole of ideal gas is allowed to expend reversibly and adiabatically from a temperature of 27^° C. If the work done during the process is 3kJ. The final temperature will be equal to (CV=20J/K) (A) 150K (B) 100K (C) 26.85K (D) 295K

Discussion

21.	Which of the following is correct? (1) The sum of mole fractions of all the components in a solution is always unity (2) Mole fraction depends upon temperature (3) Mole fraction is always negative (4) Mole fraction is independent of content of solute in solution
Answer» Which of the following is correct? (1) The sum of mole fractions of all the components in a solution is always unity (2) Mole fraction depends upon temperature (3) Mole fraction is always negative (4) Mole fraction is independent of content of solute in solution

Discussion

22.	P is the probability of finding the 2s electron of hydrogen atom in a spherical shell of infinitesimal thickness, dr at a distance r from nucleus, the volume of this shell is 4πr2dr. The qualitative sketch of the dependence of P on r is:
Answer» $P$ is the probability of finding the $2 s$ electron of hydrogen atom in a spherical shell of infinitesimal thickness, $d r$ at a distance $r$ from nucleus, the volume of this shell is $4 π r^{2} d r$ . The qualitative sketch of the dependence of $P$ on $r$ is:

Discussion

23.	The element which readily forms an ionic bond has the electronic configuration.
Answer» The element which readily forms an ionic bond has the electronic configuration.

Discussion

24.	For the formation of NaOH using Castner Kellner cell, cathode used is of metal
Answer» For the formation of $N a O H$ using Castner Kellner cell, cathode used is of metal

Discussion

25.	what is habour process?
Answer» what is habour process?

Discussion

26.	WHY DO HALOGEN SHOW +R OR +M GROUP if it has only 1 electron requirment for octet then why would they donate electron ?
Answer» WHY DO HALOGEN SHOW +R OR +M GROUP if it has only 1 electron requirment for octet then why would they donate electron ?

Discussion

27.	36.Number of moles of AgCl precipitated when excess of silver nitrate solution is added to A,B and C respectively A=CoCl3 .6NH3 (yellow) B=CoCl3 .5NH3 ( purple ) C=CoCl3.4NH3 ( violet )
Answer» 36.Number of moles of AgCl precipitated when excess of silver nitrate solution is added to A,B and C respectively A=CoCl3 .6NH3 (yellow) B=CoCl3 .5NH3 ( purple ) C=CoCl3.4NH3 ( violet )

Discussion

28.	what is ipronized and phenelzine?
Answer» what is ipronized and phenelzine?

Discussion

29.	34.Which of the following molecule is planer? 1)CH4 2)C2H4 3)NH3 4)SiCl4
Answer» 34.Which of the following molecule is planer? 1)CH4 2)C2H4 3)NH3 4)SiCl4

Discussion

30.	Consider the following reaction Zn+2HCl→ ZnCl_2+H_2 If 520 mL of Hydrogen gas is collected over water at 28 celsius and the atmospheric pressure is 1 atm If vapour pressure of water at 28 celsius is 28.33 mm Hg. Then the amount of Zn(in gram) taken at the start of the reaction(assume all Zn(s) gets converted in product,molar mass of Zn is 65 g/mol
Answer» Consider the following reaction Zn+2HCl→ ZnCl_2+H_2 If 520 mL of Hydrogen gas is collected over water at 28 celsius and the atmospheric pressure is 1 atm If vapour pressure of water at 28 celsius is 28.33 mm Hg. Then the amount of Zn(in gram) taken at the start of the reaction(assume all Zn(s) gets converted in product,molar mass of Zn is 65 g/mol

Discussion

31.	What do you mean by hydrocarbon? Write its sources.
Answer» What do you mean by hydrocarbon? Write its sources.

Discussion

32.	Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient condition is:
Answer» Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient condition is:

Discussion

33.	Which of the following is not hypovalent a. CH_3^+ b. B_2H_6 c. NH_2^+ d. AlF_{
Answer» Which of the following is not hypovalent a. CH_3^+ b. B_2H_6 c. NH_2^+ d. AlF_{

Discussion

34.	The geometries of the ammonia complexes of Ni2+, Pt2+ and Zn2+, respcetively, are
Answer» The geometries of the ammonia complexes of $N i^{2 +}, P t^{2 +} a n d Z n^{2 +},$ respcetively, are

Discussion

35.	Degrees of freedom of CO with proper explanation. And give me list of all degrees of freedom of all other molecules.
Answer» Degrees of freedom of CO with proper explanation. And give me list of all degrees of freedom of all other molecules.

Discussion

36.	Find the centre of mass of a uniform semicircular ring of radius R
Answer» Find the centre of mass of a uniform semicircular ring of radius R

Discussion

37.	the half life period of a subs†an ce is 50 min at a certain initial concentration. when concentration is reduced to one half, half life is found to be 25 min. order of reaction i
Answer» the half life period of a subs†an ce is 50 min at a certain initial concentration. when concentration is reduced to one half, half life is found to be 25 min. order of reaction i

Discussion

38.	Identify the correct steps representing SN1 mechanism for the clevage of ether with HI.
Answer» Identify the correct steps representing $S_{N} 1$ mechanism for the clevage of ether with HI.

Discussion

39.	The reaction of propene with HOCl (Cl2+H2O) proceeds through the intermediate:
Answer» The reaction of propene with $H O C l (C l_{2} + H_{2} O)$ proceeds through the intermediate:

Discussion

40.	Seeing the growing cases of diabetes and depression among young children, Mr Lugani, the principal of one reputed school, organised a seminar in which he invites parents and principals. They all resolved this issue by strictly banning junk food in schools and introducing healthy snacks and drinks like soup, lassi, milk etc. in school canteens. They also decided to make compulsory half an hour of daily physical activities for the students in the health survey in most of the school and discovered a tremendous improvement in the health of the students. After reading the above passage, answer the following questions: (i) What are the values (at least two) displayed by Mr Lugani? (ii) As a student, how can you spread awareness about this issue? (iii) What are antidepressant drugs? Give an example. (iv) Name the sweetening agent used in the preparation of sweets for a diabetic patient.
Answer» Seeing the growing cases of diabetes and depression among young children, Mr Lugani, the principal of one reputed school, organised a seminar in which he invites parents and principals. They all resolved this issue by strictly banning junk food in schools and introducing healthy snacks and drinks like soup, lassi, milk etc. in school canteens. They also decided to make compulsory half an hour of daily physical activities for the students in the health survey in most of the school and discovered a tremendous improvement in the health of the students. After reading the above passage, answer the following questions: (i) What are the values (at least two) displayed by Mr Lugani? (ii) As a student, how can you spread awareness about this issue? (iii) What are antidepressant drugs? Give an example. (iv) Name the sweetening agent used in the preparation of sweets for a diabetic patient.

40.

Seeing the growing cases of diabetes and depression among young children, Mr Lugani, the principal of one reputed school, organised a seminar in which he invites parents and principals. They all resolved this issue by strictly banning junk food in schools and introducing healthy snacks and drinks like soup, lassi, milk etc. in school canteens. They also decided to make compulsory half an hour of daily physical activities for the students in the health survey in most of the school and discovered a tremendous improvement in the health of the students. After reading the above passage, answer the following questions: (i) What are the values (at least two) displayed by Mr Lugani? (ii) As a student, how can you spread awareness about this issue? (iii) What are antidepressant drugs? Give an example. (iv) Name the sweetening agent used in the preparation of sweets for a diabetic patient.

Answer»

Seeing the growing cases of diabetes and depression among young children, Mr Lugani, the principal of one reputed school, organised a seminar in which he invites parents and principals. They all resolved this issue by strictly banning junk food in schools and introducing healthy snacks and drinks like soup, lassi, milk etc. in school canteens. They also decided to make compulsory half an hour of daily physical activities for the students in the health survey in most of the school and discovered a tremendous improvement in the health of the students. After reading the above passage, answer the following questions:

(i) What are the values (at least two) displayed by Mr Lugani?

(ii) As a student, how can you spread awareness about this issue?

(iii) What are antidepressant drugs? Give an example.

(iv) Name the sweetening agent used in the preparation of sweets for a diabetic patient.

Discussion

41.	Solubility of an ionic compound in water is mainly dependent on: a. Lattice enthalpy b. Hydration enthalpy Both these factors oppose each other, and the resultant of these factors determines the solubility of an ionic compound in water. If the lattice enthalpy has a larger value, the compound is less soluble. If the hydration enthalpy has larger value, the compound is highly soluble in water.Which of the following is less soluble in water?
Answer» Solubility of an ionic compound in water is mainly dependent on: a. Lattice enthalpy b. Hydration enthalpy Both these factors oppose each other, and the resultant of these factors determines the solubility of an ionic compound in water. If the lattice enthalpy has a larger value, the compound is less soluble. If the hydration enthalpy has larger value, the compound is highly soluble in water. Which of the following is less soluble in water?

Discussion

42.	correct order of electron donating tendency when the following groups are attached to a benzene or an unsaturated group is (a)(CH3)3C-
Answer» correct order of electron donating tendency when the following groups are attached to a benzene or an unsaturated group is (a)(CH3)3C-

Discussion

43.	Sodium nitrate on reduction with Zn in presence of NaOH solution produces NH3. Mass of sodium nitrate absorbing 1 mole of electron will be ?(a)7.750 (b)10.625 (c)8.000 (d)9.875
Answer» Sodium nitrate on reduction with Zn in presence of NaOH solution produces NH3. Mass of sodium nitrate absorbing 1 mole of electron will be ? (a)7.750 (b)10.625 (c)8.000 (d)9.875

Discussion

44.	The heat of combustion of carbon to CO2 is -393.5 kJ/mol. The heat released upon formation of 35.2g of CO2 from carbon and oxygen gas is
Answer» The heat of combustion of carbon to $C O_{2}$ is -393.5 kJ/mol. The heat released upon formation of 35.2g of $C O_{2}$ from carbon and oxygen gas is

Discussion

45.	What is sandmeyar reaction?
Answer» What is sandmeyar reaction?

Discussion

46.	27. Calculate total no. Of optical isomers in following compound CH3-CH-CH-CH-CH3 \| \| \| OH OH OH
Answer» 27. Calculate total no. Of optical isomers in following compound CH3-CH-CH-CH-CH3 \| \| \| OH OH OH

Discussion

47.	What is the relation between total molecular weigh, mole fraction and individuals atomic/molecular weigh ?
Answer» What is the relation between total molecular weigh, mole fraction and individuals atomic/molecular weigh ?

Discussion

48.	A gaseous alkane requires five times its volume of oxygen under the same conditions for complete combustion.The molecular formula is
Answer» A gaseous alkane requires five times its volume of oxygen under the same conditions for complete combustion.The molecular formula is

Discussion

49.	Which of the following is the major product for the given reaction:
Answer» Which of the following is the major product for the given reaction:

Discussion

50.	Which one of the following complexes has largest value of Δ0?
Answer» Which one of the following complexes has largest value of $Δ_{0} ?$

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

does nitrogen show rapid umbrella inversion? if yes then is it in tertary or quaternary amine?

20 g of non-electrolyte, non-volatile solute (CxH2xOx) when dissolved in 100 g water at 100∘ C, lowers the vapour pressure of solution by (1100)th of the vapour pressure of pure water. What is formula of the compound?

Which of the following metal ion is present in Ziegler-Natta catalyst?

A transistor operating in a common base configuration has forward current gain factor, α=0.99. If the emitter current changes by 1 mA, then the changes in the base current will be

Combine 0.2g atom of silicon with 21.3g of chlorine. Find the empirical formula of the compound formed.

A weak acid HA aftertreatment with 12 mL of 0.1 M strong base BOH has a pH of 5. At the end point,the volume of same base required is 26.6 mL. Ka of acid is:

46. Highest C-O bond length found in 1) [Mn(CO)6]+ 2) [Cr(CO)6] 3) [V(CO)6]- 4) same in all.

A 2g sample of xenon reacts with fluorine. The mass of compound produced is 3.158 g. The emperical formula of the compound is (1) XeF_2 (2) XeF_4 (3) XeF_5 (4) XeF_6

28. What is the hybridisation of first carbon. In CH3CH2OH / ethanol with formula

Among the following, the conformation that corresponds to the most stable conformation of meso-butane-2,3-diol is:

Iodobenzene can be obtained by:

Which of the following molecules is paramagnetic?

State Raoult’s law for a solution containing volatile components. Write two characteristics of the solution which obeys Raoult’s law at all concentrations.

Derive the equation of distance covered in nth second step by step

define the term critical point.

83. Concentration aqueous sulphuric acid is 98% H2SO4 by mass and has a density of 1.80g/ml. Volume of acid required to make one litre of 0.1 M H2SO4 is 1)5.55 2)11.10 3)16.65 4)22.20

32. Find the number of maximum electron present in an atom having n+l =3

Give proper definition for deferentiation

16. One mole of ideal gas is allowed to expend reversibly and adiabatically from a temperature of 27^° C. If the work done during the process is 3kJ. The final temperature will be equal to (CV=20J/K) (A) 150K (B) 100K (C) 26.85K (D) 295K

Which of the following is correct? (1) The sum of mole fractions of all the components in a solution is always unity (2) Mole fraction depends upon temperature (3) Mole fraction is always negative (4) Mole fraction is independent of content of solute in solution

P is the probability of finding the 2s electron of hydrogen atom in a spherical shell of infinitesimal thickness, dr at a distance r from nucleus, the volume of this shell is 4πr2dr. The qualitative sketch of the dependence of P on r is:

The element which readily forms an ionic bond has the electronic configuration.

For the formation of NaOH using Castner Kellner cell, cathode used is of metal

what is habour process?

WHY DO HALOGEN SHOW +R OR +M GROUP if it has only 1 electron requirment for octet then why would they donate electron ?

36.Number of moles of AgCl precipitated when excess of silver nitrate solution is added to A,B and C respectively A=CoCl3 .6NH3 (yellow) B=CoCl3 .5NH3 ( purple ) C=CoCl3.4NH3 ( violet )

what is ipronized and phenelzine?

34.Which of the following molecule is planer? 1)CH4 2)C2H4 3)NH3 4)SiCl4

What do you mean by hydrocarbon? Write its sources.

Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient condition is:

Which of the following is not hypovalent a. CH_3^+ b. B_2H_6 c. NH_2^+ d. AlF_{

The geometries of the ammonia complexes of Ni2+, Pt2+ and Zn2+, respcetively, are

Degrees of freedom of CO with proper explanation. And give me list of all degrees of freedom of all other molecules.

Find the centre of mass of a uniform semicircular ring of radius R

the half life period of a subs†an ce is 50 min at a certain initial concentration. when concentration is reduced to one half, half life is found to be 25 min. order of reaction i

Identify the correct steps representing SN1 mechanism for the clevage of ether with HI.

The reaction of propene with HOCl (Cl2+H2O) proceeds through the intermediate:

correct order of electron donating tendency when the following groups are attached to a benzene or an unsaturated group is (a)(CH3)3C-

Sodium nitrate on reduction with Zn in presence of NaOH solution produces NH3. Mass of sodium nitrate absorbing 1 mole of electron will be ?(a)7.750 (b)10.625 (c)8.000 (d)9.875

The heat of combustion of carbon to CO2 is -393.5 kJ/mol. The heat released upon formation of 35.2g of CO2 from carbon and oxygen gas is

What is sandmeyar reaction?

27. Calculate total no. Of optical isomers in following compound CH3-CH-CH-CH-CH3 | | | OH OH OH

What is the relation between total molecular weigh, mole fraction and individuals atomic/molecular weigh ?

A gaseous alkane requires five times its volume of oxygen under the same conditions for complete combustion.The molecular formula is

Which of the following is the major product for the given reaction:

Which one of the following complexes has largest value of Δ0?