46295 + Interview Questions in Chemistry

1.	96.For the equilibrium N2O4=2NO2 in gaseous phase ,NO2 is 50% of the total volume when equilibrium is set up. Hence percentage dissociation of N2O4 is 1)50% 2)25% 3)666% 4)33.33%
Answer» 96.For the equilibrium N2O4=2NO2 in gaseous phase ,NO2 is 50% of the total volume when equilibrium is set up. Hence percentage dissociation of N2O4 is 1)50% 2)25% 3)666% 4)33.33%

Discussion

2.	Arrange the following compound according to dC-C order A) C2F4 B) C2H4 C) [PtCl3(C2H4)]-
Answer» Arrange the following compound according to dC-C order A) C2F4 B) C2H4 C) [PtCl3(C2H4)]-

Discussion

3.	Monomer of trioxan is(a) formaldehyde(c) acetone(b) isoprene(d) acetaldehyde
Answer» Monomer of trioxan is(a) formaldehyde(c) acetone(b) isoprene(d) acetaldehyde

Discussion

4.	Idenitify from the following reactions which has, KP=KC:
Answer» Idenitify from the following reactions which has, $K_{P} = K_{C}$ :

Discussion

5.	what are the isomers of acetone
Answer» what are the isomers of acetone

Discussion

6.	What and where are the uses of coordination compound for coordination of co-ordinate bond or is there?
Answer» What and where are the uses of coordination compound for coordination of co-ordinate bond or is there?

Discussion

7.	8. An electron stays for 10to power-6sec in second orbit of hydrogen atom before jumping into ground state calculate number of revolution in second orbit before jump…
Answer» 8. An electron stays for 10to power-6sec in second orbit of hydrogen atom before jumping into ground state calculate number of revolution in second orbit before jump…

Discussion

8.	Does the water we drink gives us energy or it has other purpose
Answer» Does the water we drink gives us energy or it has other purpose

Discussion

9.	a screen is at a dis†an ce of 1m away from the aperture if light of wavelength 500nm falls on an apperture, then calculate the area of first HPZ and radius of third HPZ
Answer» a screen is at a dis†an ce of 1m away from the aperture if light of wavelength 500nm falls on an apperture, then calculate the area of first HPZ and radius of third HPZ

Discussion

10.	Let’s say you have a beaker with ice, water and water vapour together. What is the number of phases and what is the number of components you would find in this beaker?
Answer» Let’s say you have a beaker with ice, water and water vapour together. What is the number of phases and what is the number of components you would find in this beaker?

Discussion

11.	Answer the following questions.A.Plants synthesize glucose in sunlight with the help of chlorophyll from carbon dioxide and water and give away oxygen. identify the four compounds in this process and name their types.B. In one sample of brass, the following ingredients were found : copper (70%) and zinc (30%). Identify the solvent, solute and solution from these.C. Sea water tastes salty due to the dissolved salt. the salinity (the proportion of salts in water) of some water bodies Lonar lake - 7.9 %, Pacific Ocean 3.5%, Mediterranean sea- 3.8%, Dead sea- 33.7%. Explain two characteristics of mixture from the above information.
Answer» Answer the following questions. A.Plants synthesize glucose in sunlight with the help of chlorophyll from carbon dioxide and water and give away oxygen. identify the four compounds in this process and name their types. B. In one sample of brass, the following ingredients were found : copper (70%) and zinc (30%). Identify the solvent, solute and solution from these. C. Sea water tastes salty due to the dissolved salt. the salinity (the proportion of salts in water) of some water bodies Lonar lake - 7.9 %, Pacific Ocean 3.5%, Mediterranean sea- 3.8%, Dead sea- 33.7%. Explain two characteristics of mixture from the above information.

Discussion

12.	Which of the following is aprotic nonpolar solvent?
Answer» Which of the following is aprotic nonpolar solvent?

Discussion

13.	The total number of atomic orbitals in third energy level of an atom is
Answer» The total number of atomic orbitals in third energy level of an atom is

Discussion

14.	Predict the products formed due to the homolytic cleavage of the C−Br bond in (CH3)3CBr.
Answer» Predict the products formed due to the homolytic cleavage of the $C - B r$ bond in $(C H_{3})_{3} C B r$ .

Discussion

15.	Which of the following pairs are both polysaccharides?
Answer» Which of the following pairs are both polysaccharides?

Discussion

16.	When the YDSE apparatus is immersed in a liquid, the fringe width decreases by 20%. The refractive index of the liquid is
Answer» When the $Y D S E$ apparatus is immersed in a liquid, the fringe width decreases by $20 %$ . The refractive index of the liquid is

Discussion

17.	Why is rate of evaporation in case of alcohol is faster than that of water ?
Answer» Why is rate of evaporation in case of alcohol is faster than that of water ?

Discussion

18.	Balance the following equation: XeF6 + H2O → XeO2F2 + HF
Answer» Balance the following equation: XeF₆ + H₂O → XeO₂F₂ + HF

Discussion

19.	Is quinoline a non benzoid?
Answer» Is quinoline a non benzoid?

Discussion

20.	The radius of the nucleus whose mass number is 216 is [Take R0=1.3 fm]
Answer» The radius of the nucleus whose mass number is $216$ is [Take $R_{0} = 1.3 fm$ ]

Discussion

21.	In which of the following pair(s), the first member is more basic than second one in aqueous solution?
Answer» In which of the following pair(s), the first member is more basic than second one in aqueous solution?

Discussion

22.	{ 23. The reaction of }CH_3CH=CH_2 with HOCl will yield }}{ (1) }2 -chloro-1-propanol }}{ (2) }3 -chloro-2-propanol }}{ (3) }1 -chloro-2-propanol }}{ (4) }1 -chloro-1-propanol
Answer» { 23. The reaction of }CH_3CH=CH_2 with HOCl will yield }}{ (1) }2 -chloro-1-propanol }}{ (2) }3 -chloro-2-propanol }}{ (3) }1 -chloro-2-propanol }}{ (4) }1 -chloro-1-propanol

Discussion

23.	24. the vapour pressure of pure benzene and Toluene are 160 and 60 torr .the mole fraction in vapour phase in contrast with equimolar solutions of benzene and Toluene is ?
Answer» 24. the vapour pressure of pure benzene and Toluene are 160 and 60 torr .the mole fraction in vapour phase in contrast with equimolar solutions of benzene and Toluene is ?

Discussion

24.	11. Which of the following have dipole moment:- 1) 1,4-dihydroxy benzene 2) 1,4-benzenedicarbonitrile 3)1,2-dichloro benzene 4)All
Answer» 11. Which of the following have dipole moment:- 1) 1,4-dihydroxy benzene 2) 1,4-benzenedicarbonitrile 3)1,2-dichloro benzene 4)All

Discussion

25.	ethanol on condensation with acetone gives in dilute Nao
Answer» ethanol on condensation with acetone gives in dilute Nao

Discussion

26.	The stability of the following alkali metal chlorides follow the order-A. LiCl>KCl>NaCl>CsClB. CsCl>KCl>NaCl>LiClC. NaCl>KCl>LiCl>CsClD. KCl>CsCl>NaCl>LiCl
Answer» The stability of the following alkali metal chlorides follow the order- A. LiCl>KCl>NaCl>CsCl B. CsCl>KCl>NaCl>LiCl C. NaCl>KCl>LiCl>CsCl D. KCl>CsCl>NaCl>LiCl

Discussion

27.	Amongst the compounds given, the one that would form a brilliant colored dye on treatment with NaNO2 in dil.HCl followed by addition to an alkaline solution of β-naphthol is
Answer» Amongst the compounds given, the one that would form a brilliant colored dye on treatment with $N a N O_{2}$ in $d i l . H C l$ followed by addition to an alkaline solution of $β$ -naphthol is

Discussion

28.	Give the formula and the IUPAC name of the lower and higher membr of ethanol
Answer» Give the formula and the IUPAC name of the lower and higher membr of ethanol

Discussion

29.	27. What is the position of Lithium (Li) in the reactivity series?
Answer» 27. What is the position of Lithium (Li) in the reactivity series?

Discussion

30.	Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complexes: (i) K3[Co(C2O4)3] (ii) cis-[Cr(en)2Cl2]Cl (iii) (NH4)2[CoF4] (iv) [Mn(H2O)6]SO4
Answer» Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complexes: (i) K₃[Co(C₂O₄)₃] (ii) cis-[Cr(en)₂Cl₂]Cl (iii) (NH₄)₂[CoF₄] (iv) [Mn(H₂O)₆]SO₄

30.

Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complexes: (i) K3[Co(C2O4)3] (ii) cis-[Cr(en)2Cl2]Cl (iii) (NH4)2[CoF4] (iv) [Mn(H2O)6]SO4

Answer»

Give the oxidation state, d-orbital occupation and
coordination number of the central metal ion in the following
complexes:

(i) K₃[Co(C₂O₄)₃]

(ii) cis-[Cr(en)₂Cl₂]Cl

(iii) (NH₄)₂[CoF₄]

(iv) [Mn(H₂O)₆]SO₄

Discussion

31.	what will be the order of E2 rxn of 1^° 2 ^° and 3^° alkyl bromide
Answer» what will be the order of E2 rxn of 1^° 2 ^° and 3^° alkyl bromide

Discussion

32.	On the electrolysis of aqueous solution of sodium sulphate, on cathode we get
Answer» On the electrolysis of aqueous solution of sodium sulphate, on cathode we get

Discussion

33.	Select the incorrect order of stability :
Answer» Select the incorrect order of stability :

Discussion

34.	Why is the bond angle of NH3 greater than NF3 ?
Answer» Why is the bond angle of NH3 greater than NF3 ?

Discussion

35.	Determine the value of equilibrium constant (Kc) for the reaction A2(g)+B2(g)⇋2AB(g)If 10 moles of A2, 15 moles of B2 and 5 moles of AB are placed in a 2 L vessel and allowed to come to equilibrium. The final concentration of AB is 7.5 M.
Answer» Determine the value of equilibrium constant $(K_{c})$ for the reaction $A_{2 (g)} + B_{2 (g)} ⇋ 2 A B_{(g)}$ If $10$ moles of $A_{2},$ $15$ moles of $B_{2}$ and $5$ moles of $A B$ are placed in a $2 L$ vessel and allowed to come to equilibrium. The final concentration of $A B$ is $7.5 M$ .

Discussion

36.	Common name for terfenadine
Answer» Common name for terfenadine

Discussion

37.	Select the correct options in view of the following reaction:
Answer» Select the correct options in view of the following reaction:

Discussion

38.	What is the definition of stoiStoichiom compound
Answer» What is the definition of stoiStoichiom compound

Discussion

39.	The appropriate reagent for the following transformation:
Answer» The appropriate reagent for the following transformation:

Discussion

40.	A hydrogen atom is in ground state. In order to get six lines in its emission spectrum, wavelengths of incident radiation should be,
Answer» A hydrogen atom is in ground state. In order to get six lines in its emission spectrum, wavelengths of incident radiation should be,

Discussion

41.	The circulation of blood in the human body supplies O2 and releases CO2. The concentration of O2 and CO2 is variable but on an average, 100 ml blood contains 0.02 g of O2 and 0.08 g of CO2. The volume of O2 and CO2 at 1 atm and at body temperature 37∘ C, assuming 10 l blood in the human body is:
Answer» The circulation of blood in the human body supplies $O_{2}$ and releases $C O_{2}$ . The concentration of $O_{2}$ and $C O_{2}$ is variable but on an average, 100 ml blood contains 0.02 g of $O_{2}$ and 0.08 g of $C O_{2}$ . The volume of $O_{2}$ and $C O_{2}$ at 1 atm and at body temperature $37^{\circ} C$ , assuming 10 l blood in the human body is:

Discussion

42.	the enthalpies of combustion of carbon and carbon monooxide are -393.5kJ and -283kJ ,respectively the enthalpy of formation of carbon monoxide 1.-676.5kJ 2.-110.5kJ 3.110.5kJ 4.676.5
Answer» the enthalpies of combustion of carbon and carbon monooxide are -393.5kJ and -283kJ ,respectively the enthalpy of formation of carbon monoxide 1.-676.5kJ 2.-110.5kJ 3.110.5kJ 4.676.5

Discussion

43.	At what pH oxidation potential of water is −0.81 V? ( Standard oxidation potential of water = -1.23 V)
Answer» At what pH oxidation potential of water is $- 0.81 V$ ? ( Standard oxidation potential of water = -1.23 V)

Discussion

44.	A solution of known normality is diluted to twotimes. Which of the following changes during dilution?
Answer» A solution of known normality is diluted to two times. Which of the following changes during dilution?

Discussion

45.	18. What is resonance and resonating structures?
Answer» 18. What is resonance and resonating structures?

Discussion

46.	The above reaction requires which of the following reaction condition?
Answer» The above reaction requires which of the following reaction condition?

Discussion

47.	The enthalpy of combustion of H2(g) at 298 K to give H2O(g) is −249 kJ mol−1 and bond enthalpies of H - H and O = O are 433 kJ mol−1 and 492 kJ mol−1, respectively. The bond enthalpy of O - H is
Answer» The enthalpy of combustion of $H_{2} (g)$ at 298 K to give $H_{2} O (g)$ is $- 249 k J m o l^{- 1}$ and bond enthalpies of H - H and O = O are $433 k J m o l^{- 1}$ and $492 k J m o l^{- 1},$ respectively. The bond enthalpy of O - H is

Discussion

48.	Which one of the following chemicals is responsible for the production of HCl in the stomach leading to irritation and pain ?
Answer» Which one of the following chemicals is responsible for the production of $H C l$ in the stomach leading to irritation and pain ?

Discussion

49.	26.Copper 63 and copper 65 has average atomic mass of 63.546u. % nature abundance of lighter isotope of copper will be
Answer» 26.Copper 63 and copper 65 has average atomic mass of 63.546u. % nature abundance of lighter isotope of copper will be

Discussion

50.	(a) Write the products formed when CH3CHO reacts with the following reagents : (i) HCN (ii) H2N−OH (iii) CH3CHO in the presence of dilute NaOH (b) Give simple chemical tests to distinguish between the following pain of compounds : (i) Benzoic acid and Phenol (ii) Propanal and Propanone
Answer» (a) Write the products formed when $C H_{3} C H O$ reacts with the following reagents : (i) HCN (ii) $H_{2} N - O H$ (iii) $C H_{3} C H O$ in the presence of dilute NaOH (b) Give simple chemical tests to distinguish between the following pain of compounds : (i) Benzoic acid and Phenol (ii) Propanal and Propanone

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

96.For the equilibrium N2O4=2NO2 in gaseous phase ,NO2 is 50% of the total volume when equilibrium is set up. Hence percentage dissociation of N2O4 is 1)50% 2)25% 3)666% 4)33.33%

Arrange the following compound according to dC-C order A) C2F4 B) C2H4 C) [PtCl3(C2H4)]-

Monomer of trioxan is(a) formaldehyde(c) acetone(b) isoprene(d) acetaldehyde

Idenitify from the following reactions which has, KP=KC:

what are the isomers of acetone

What and where are the uses of coordination compound for coordination of co-ordinate bond or is there?

8. An electron stays for 10to power-6sec in second orbit of hydrogen atom before jumping into ground state calculate number of revolution in second orbit before jump…

Does the water we drink gives us energy or it has other purpose

a screen is at a dis†an ce of 1m away from the aperture if light of wavelength 500nm falls on an apperture, then calculate the area of first HPZ and radius of third HPZ

Let’s say you have a beaker with ice, water and water vapour together. What is the number of phases and what is the number of components you would find in this beaker?

Which of the following is aprotic nonpolar solvent?

The total number of atomic orbitals in third energy level of an atom is

Predict the products formed due to the homolytic cleavage of the C−Br bond in (CH3)3CBr.

Which of the following pairs are both polysaccharides?

When the YDSE apparatus is immersed in a liquid, the fringe width decreases by 20%. The refractive index of the liquid is

Why is rate of evaporation in case of alcohol is faster than that of water ?

Balance the following equation: XeF6 + H2O → XeO2F2 + HF

Is quinoline a non benzoid?

The radius of the nucleus whose mass number is 216 is [Take R0=1.3 fm]

In which of the following pair(s), the first member is more basic than second one in aqueous solution?

{ 23. The reaction of }CH_3CH=CH_2 with HOCl will yield }}{ (1) }2 -chloro-1-propanol }}{ (2) }3 -chloro-2-propanol }}{ (3) }1 -chloro-2-propanol }}{ (4) }1 -chloro-1-propanol

24. the vapour pressure of pure benzene and Toluene are 160 and 60 torr .the mole fraction in vapour phase in contrast with equimolar solutions of benzene and Toluene is ?

11. Which of the following have dipole moment:- 1) 1,4-dihydroxy benzene 2) 1,4-benzenedicarbonitrile 3)1,2-dichloro benzene 4)All

ethanol on condensation with acetone gives in dilute Nao

The stability of the following alkali metal chlorides follow the order-A. LiCl>KCl>NaCl>CsClB. CsCl>KCl>NaCl>LiClC. NaCl>KCl>LiCl>CsClD. KCl>CsCl>NaCl>LiCl

Amongst the compounds given, the one that would form a brilliant colored dye on treatment with NaNO2 in dil.HCl followed by addition to an alkaline solution of β-naphthol is

Give the formula and the IUPAC name of the lower and higher membr of ethanol

27. What is the position of Lithium (Li) in the reactivity series?

Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complexes: (i) K3[Co(C2O4)3] (ii) cis-[Cr(en)2Cl2]Cl (iii) (NH4)2[CoF4] (iv) [Mn(H2O)6]SO4

what will be the order of E2 rxn of 1^° 2 ^° and 3^° alkyl bromide

On the electrolysis of aqueous solution of sodium sulphate, on cathode we get

Select the incorrect order of stability :

Why is the bond angle of NH3 greater than NF3 ?

Determine the value of equilibrium constant (Kc) for the reaction A2(g)+B2(g)⇋2AB(g)If 10 moles of A2, 15 moles of B2 and 5 moles of AB are placed in a 2 L vessel and allowed to come to equilibrium. The final concentration of AB is 7.5 M.

Common name for terfenadine

Select the correct options in view of the following reaction:

What is the definition of stoiStoichiom compound

The appropriate reagent for the following transformation:

A hydrogen atom is in ground state. In order to get six lines in its emission spectrum, wavelengths of incident radiation should be,

The circulation of blood in the human body supplies O2 and releases CO2. The concentration of O2 and CO2 is variable but on an average, 100 ml blood contains 0.02 g of O2 and 0.08 g of CO2. The volume of O2 and CO2 at 1 atm and at body temperature 37∘ C, assuming 10 l blood in the human body is:

the enthalpies of combustion of carbon and carbon monooxide are -393.5kJ and -283kJ ,respectively the enthalpy of formation of carbon monoxide 1.-676.5kJ 2.-110.5kJ 3.110.5kJ 4.676.5

At what pH oxidation potential of water is −0.81 V? ( Standard oxidation potential of water = -1.23 V)

A solution of known normality is diluted to twotimes. Which of the following changes during dilution?

18. What is resonance and resonating structures?

The above reaction requires which of the following reaction condition?

The enthalpy of combustion of H2(g) at 298 K to give H2O(g) is −249 kJ mol−1 and bond enthalpies of H - H and O = O are 433 kJ mol−1 and 492 kJ mol−1, respectively. The bond enthalpy of O - H is

Which one of the following chemicals is responsible for the production of HCl in the stomach leading to irritation and pain ?

26.Copper 63 and copper 65 has average atomic mass of 63.546u. % nature abundance of lighter isotope of copper will be

(a) Write the products formed when CH3CHO reacts with the following reagents : (i) HCN (ii) H2N−OH (iii) CH3CHO in the presence of dilute NaOH (b) Give simple chemical tests to distinguish between the following pain of compounds : (i) Benzoic acid and Phenol (ii) Propanal and Propanone