46295 + Interview Questions in Chemistry

1.	Which of the following has a complex cation?
Answer» Which of the following has a complex cation?

Discussion

2.	Which of the following complex ion is not expected to absorb visible light?
Answer» Which of the following complex ion is not expected to absorb visible light?

Discussion

3.	The amount of anhydrous Na2CO3 present in 250 ml of 0.25 M solution is
Answer» The amount of anhydrous Na₂CO₃present in 250 ml of 0.25 M solution is

Discussion

4.	The major product of the following reaction is:
Answer» The major product of the following reaction is:

Discussion

5.	Calculate the total ions and charge present in 4.2 gram ofN^3-.
Answer» Calculate the total ions and charge present in 4.2 gram ofN^3-.

Discussion

6.	The 'acid value' of an oil or fat is measured in terms of weight of
Answer» The 'acid value' of an oil or fat is measured in terms of weight of

Discussion

7.	The compound containing ionic, covalent and coordinate covalent bonds is? 1) CHCl3. 2) Na2CO3. 3) NH4Cl. 4) C2H2
Answer» The compound containing ionic, covalent and coordinate covalent bonds is? 1) CHCl3. 2) Na2CO3. 3) NH4Cl. 4) C2H2

Discussion

8.	Match materials given in Column I with the polymers given in Column II. Column I Column IIA. Natural rubber latex1. NylonB. Wood laminates2. NeopreneC. Ropes and fibres3. DacronD. Polyester fabric4. Melamine formaldehyde resinsE. Synthetic rubber5. Urea−fromaldehyde resinsF. Unbreakable crockery6. cis−polyisoprene
Answer» Match materials given in Column I with the polymers given in Column II. $\begin{matrix} C o l u m n I & C o l u m n I I A . N a t u r a l r u b b e r l a t e x & 1. N y l o n B . W o o d l a m i n a t e s & 2. N e o p r e n e C . R o p e s a n d f i b r e s & 3. D a c r o n D . P o l y e s t e r f a b r i c & 4. M e l a m i n e f o r m a l d e h y d e r e s i n s E . S y n t h e t i c r u b b e r & 5. U r e a - f r o m a l d e h y d e r e s i n s F . U n b r e a k a b l e c r o c k e r y & 6. c i s - p o l y i s o p r e n e \end{matrix}$

8.

Match materials given in Column I with the polymers given in Column II. Column I Column IIA. Natural rubber latex1. NylonB. Wood laminates2. NeopreneC. Ropes and fibres3. DacronD. Polyester fabric4. Melamine formaldehyde resinsE. Synthetic rubber5. Urea−fromaldehyde resinsF. Unbreakable crockery6. cis−polyisoprene

Answer»

Match materials given in Column I with the polymers given in Column II.

$\begin{matrix} C o l u m n I & C o l u m n I I A . N a t u r a l r u b b e r l a t e x & 1. N y l o n B . W o o d l a m i n a t e s & 2. N e o p r e n e C . R o p e s a n d f i b r e s & 3. D a c r o n D . P o l y e s t e r f a b r i c & 4. M e l a m i n e f o r m a l d e h y d e r e s i n s E . S y n t h e t i c r u b b e r & 5. U r e a - f r o m a l d e h y d e r e s i n s F . U n b r e a k a b l e c r o c k e r y & 6. c i s - p o l y i s o p r e n e \end{matrix}$

Discussion

9.	Explain why fluorine forms only, one oxo-acid, HOF?
Answer» Explain why fluorine forms only, one oxo-acid, HOF?

Discussion

10.	A solution of [Ni(H2O)6]2+ is green but a solution of [Ni(CN)4]2− is colourless. Explaiin.
Answer» A solution of $[N i (H_{2} O)_{6}]^{2 +}$ is green but a solution of $[N i (C N)_{4}]^{2 -}$ is colourless. Explaiin.

Discussion

11.	Which of the following has the highest reduction potential?
Answer» Which of the following has the highest reduction potential?

Discussion

12.	Which of the following reactions is possible?
Answer» Which of the following reactions is possible?

Discussion

13.	What makes a glass different from a solid such as quartz ? Under what condition could quartz be converted into glass ?
Answer» What makes a glass different from a solid such as quartz ? Under what condition could quartz be converted into glass ?

Discussion

14.	Which of the following compounds contain an electron withdrawing group ?
Answer» Which of the following compounds contain an electron withdrawing group ?

Discussion

15.	The sharp melting point of crystalline solid is due to ............. (a) a regular arrangement of constituent particles observed over a short distance in the crystal lattice (b) a regular arrangement of constituent particles observed over a long distance in the crystal lattice (c) same arrangement of constitent particles in different directions (d) different arrangement of constituent particles in different directions
Answer» The sharp melting point of crystalline solid is due to ............. (a) a regular arrangement of constituent particles observed over a short distance in the crystal lattice (b) a regular arrangement of constituent particles observed over a long distance in the crystal lattice (c) same arrangement of constitent particles in different directions (d) different arrangement of constituent particles in different directions

15.

The sharp melting point of crystalline solid is due to ............. (a) a regular arrangement of constituent particles observed over a short distance in the crystal lattice (b) a regular arrangement of constituent particles observed over a long distance in the crystal lattice (c) same arrangement of constitent particles in different directions (d) different arrangement of constituent particles in different directions

Answer»

The sharp melting point of crystalline solid is due to .............

(a) a regular arrangement of constituent particles observed over a short distance in the crystal lattice

(b) a regular arrangement of constituent particles observed over a long distance in the crystal lattice

(c) same arrangement of constitent particles in different directions

(d) different arrangement of constituent particles in different directions

Discussion

16.	An ideal gas expands in such a manner that its pressure and volume can be related by equation PV2= constant. During this process, the gas is
Answer» An ideal gas expands in such a manner that its pressure and volume can be related by equation $P V^{2} =$ constant. During this process, the gas is

Discussion

17.	Choose the product(s) formed on free radical monochlorination of 2,2,4-trimethylpentane.
Answer» Choose the product(s) formed on free radical monochlorination of 2,2,4-trimethylpentane.

Discussion

18.	In the question arrange the compounds in increasing order of rate of reaction towards nucleophilic substitution. (a) (i) < (ii) < (iii) (b) (i) < (iii) < (ii) (c) (iii) < (ii) < (i) (d) (ii) < (iii) < (i)
Answer» In the question arrange the compounds in increasing order of rate of reaction towards nucleophilic substitution. (a) (i) < (ii) < (iii) (b) (i) < (iii) < (ii) (c) (iii) < (ii) < (i) (d) (ii) < (iii) < (i)

18.

In the question arrange the compounds in increasing order of rate of reaction towards nucleophilic substitution. (a) (i) < (ii) < (iii) (b) (i) < (iii) < (ii) (c) (iii) < (ii) < (i) (d) (ii) < (iii) < (i)

Answer»

In the question arrange the compounds in increasing order of rate of reaction towards nucleophilic substitution.

(a) (i) < (ii) < (iii) (b) (i) < (iii) < (ii)

(c) (iii) < (ii) < (i) (d) (ii) < (iii) < (i)

Discussion

19.	Which one of the following is least reactive with water: -
Answer» Which one of the following is least reactive with water: -

Discussion

20.	In a Coolidge tube the intensity of X-rays produced depends on
Answer» In a Coolidge tube the intensity of X-rays produced depends on

Discussion

21.	Which of the following is the most basic oxide?
Answer» Which of the following is the most basic oxide?

Discussion

22.	An ideal gas expands according to the law PV5/2=Constant. Molar heat capacity of such gas is c=cv−xR3, here x is (Answer upto two decimal places )
Answer» An ideal gas expands according to the law $P V^{5 / 2} = C o n s t a n t$ . Molar heat capacity of such gas is $c = c_{v} - \frac{x R}{3}$ , here $x$ is (Answer upto two decimal places )

Discussion

23.	AB is an ionic solid.if the ratio of ionic radii of A+ and B- is 0.52 .what is the coordination number of B-?
Answer» AB is an ionic solid.if the ratio of ionic radii of A+ and B- is 0.52 .what is the coordination number of B-?

Discussion

24.	0.250 moles of HCl gas occupies how many liters at STP?
Answer» 0.250 moles of $H C l$ gas occupies how many liters at STP?

Discussion

25.	Which of the following process does NOT occur during a chemical reaction?
Answer» Which of the following process does NOT occur during a chemical reaction?

Discussion

26.	The corect order of increasing C−O bond lengths in CO,CO2−3 and CO2 is:
Answer» The corect order of increasing $C - O$ bond lengths in $C O, C O_{3}^{2 -}$ and $C O_{2}$ is:

Discussion

27.	The total energy of an electron in the nth orbit of a hydrogen atom is given by the formula En = -13.6 eV/n2. What does the negative energy for an electron indicate?
Answer» The total energy of an electron in the n^th orbit of a hydrogen atom is given by the formula E_n = -13.6 eV/n². What does the negative energy for an electron indicate?

Discussion

28.	What is the difference between fractional abundance and natural abundance?
Answer» What is the difference between fractional abundance and natural abundance?

Discussion

29.	1.5 Moles each of hydrogen and Iodine were placed in a sealed 10L container maintained at 717K . At equilibrium 1.25 moles each of hydrogen and Iodine were left behind .The equilibrium constant Kc for the reaction H2+I2↔ 2HI gives at 717K.
Answer» 1.5 Moles each of hydrogen and Iodine were placed in a sealed 10L container maintained at 717K . At equilibrium 1.25 moles each of hydrogen and Iodine were left behind .The equilibrium constant K_cfor the reaction H₂+I_{2↔ 2HI} gives at 717K.

Discussion

30.	Is this equation balanced:- MnO2+4HCl=Mncl2+2H2O+5Cl2
Answer» Is this equation balanced:- MnO₂+4HCl=Mncl₂+2H₂O+5Cl₂

30.

Is this equation balanced:- MnO2+4HCl=Mncl2+2H2O+5Cl2

Answer»

Is this equation balanced:-

MnO₂+4HCl=Mncl₂+2H₂O+5Cl₂

Discussion

31.	The IUPAC name of CH3 - CH(CH3) - CH2 - C CH is
Answer» The IUPAC name of CH₃ - CH(CH₃) - CH₂ - C CH is

31.

The IUPAC name of CH3 - CH(CH3) - CH2 - C CH is

Answer»

The IUPAC name of

CH₃ - CH(CH₃) - CH₂ - C CH is

Discussion

32.	The molarity of an aqueous solution of glycol is 12 M. The density of the solution is 1.392 g/mL. Find the mole fraction of glycol. (given, molar mass of glycol = 62 g/mol)
Answer» The molarity of an aqueous solution of glycol is 12 M. The density of the solution is 1.392 g/mL. Find the mole fraction of glycol. (given, molar mass of glycol = 62 g/mol)

Discussion

33.	When a certain metal was irradiated with light of frequency 1.6 × 1016 Hz, the photoelectrons emitted had twice the kinetic energy as the photoelectrons emitted when the same metal was irradiated with light of frequency 1.0 × 1016 Hz. Calculate the threshold frequency (v0) for the metal.
Answer» When a certain metal was irradiated with light of frequency $1.6 \times 10^{16} H z$ , the photoelectrons emitted had twice the kinetic energy as the photoelectrons emitted when the same metal was irradiated with light of frequency $1.0 \times 10^{16} H z$ . Calculate the threshold frequency ( $v_{0}$ ) for the metal.

Discussion

34.	Bond angles in H2O and BeCl2 respectively are:
Answer» Bond angles in $H_{2} O$ and $B e C l_{2}$ respectively are:

Discussion

35.	What would be the IUPAC name of the compound shown below?
Answer» What would be the IUPAC name of the compound shown below?

35.

What would be the IUPAC name of the compound shown below?

Answer»

What would be the IUPAC name of the compound shown below?

Discussion

36.	In the reaction CH3CH=CH2+H2O+[O]KMnO4−−−−−→Acid CH3−CH−CH2[O]−→X+HCOOH \| \| OH OH X is
Answer» In the reaction $C H_{3} C H = C H_{2} + H_{2} O + [O] K M n O_{4} - ---- \to A c i d$ $C H_{3} - C H - C H_{2} [O] - \to X + H C O O H \| \| O H O H$ X is

Discussion

37.	Which of the following order(s) is/are correct for Nucleophilic substitution reaction?
Answer» Which of the following order(s) is/are correct for Nucleophilic substitution reaction?

Discussion

38.	The number of electrons involved in the reduction of nitrate ion to hydrazine is:
Answer» The number of electrons involved in the reduction of nitrate ion to hydrazine is:

Discussion

39.	The electronic configuration of Eu 3+ ion is:
Answer» The electronic configuration of Eu³⁺ ion is:

Discussion

40.	Suggest a best objective book of chemistry and physics for NEET
Answer» Suggest a best objective book of chemistry and physics for NEET

Discussion

41.	Which one of the following is most stable ?
Answer» Which one of the following is most stable ?

Discussion

42.	CH2=CH2ConcH2SO4−−−−−−−→80∘CAH2O−−→BConcH2SO4−−−−−−−→170∘CCKMnO4/OH−−−−−−−−−−→273KD The incorrect statement is
Answer» $C H_{2} = C H_{2} C o n c H_{2} S O_{4} - ------ \to 80^{\circ} C A H_{2} O - - \to B C o n c H_{2} S O_{4} - ------ \to 170^{\circ} C C K M n O_{4} / O H - - -------- \to 273 K D$ The incorrect statement is

42.

CH2=CH2ConcH2SO4−−−−−−−→80∘CAH2O−−→BConcH2SO4−−−−−−−→170∘CCKMnO4/OH−−−−−−−−−−→273KD The incorrect statement is

Answer»

$C H_{2} = C H_{2} C o n c H_{2} S O_{4} - ------ \to 80^{\circ} C A H_{2} O - - \to B C o n c H_{2} S O_{4} - ------ \to 170^{\circ} C C K M n O_{4} / O H - - -------- \to 273 K D$

The incorrect statement is

Discussion

43.	Explain why alkyl halides though polar are immiscible with water?
Answer» Explain why alkyl halides though polar are immiscible with water?

Discussion

44.	Apples and oranges ________ a round shape.
Answer» Apples and oranges ________ a round shape.

Discussion

45.	Nitration of anisole gives majorly:
Answer» Nitration of anisole gives majorly:

Discussion

46.	A gas occupies a volume of 300 cc at 27∘C and 620 mm pressure. The volume of the gas at 47∘C and 640 mm pressure is
Answer» A gas occupies a volume of 300 cc at $27^{\circ}$ C and 620 mm pressure. The volume of the gas at $47^{\circ}$ C and 640 mm pressure is

Discussion

47.	In one litre of 0.1 M acetic solution, one millimole of HCl is added. The pH of the solution is: (Ka(CH3COOH)=2×10−5) (log 2 = 0.3, log 3 = 0.5, log 5 = 0.7)
Answer» In one litre of 0.1 M acetic solution, one millimole of $H C l$ is added. The pH of the solution is: $(K_{a} (C H_{3} C O O H) = 2 \times 10^{- 5})$ (log 2 = 0.3, log 3 = 0.5, log 5 = 0.7)

Discussion

48.	Why helium is considered as p orbital instead of s orbital?
Answer» Why helium is considered as p orbital instead of s orbital?

Discussion

49.	What is the molarity and molality of a 13% solution by weight of sulphurics acid with a density of 1.02g/ml. To waht volume should 100ml of this solution be diluted in order to prepare a 1.5N solution? Please Explain in detail and as simple as you can. Thank you for helping.
Answer» What is the molarity and molality of a 13% solution by weight of sulphurics acid with a density of 1.02g/ml. To waht volume should 100ml of this solution be diluted in order to prepare a 1.5N solution? Please Explain in detail and as simple as you can. Thank you for helping.

Discussion

50.	How do you explain the functionality of a monomer
Answer» How do you explain the functionality of a monomer

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Which of the following has a complex cation?

Which of the following complex ion is not expected to absorb visible light?

The amount of anhydrous Na2CO3 present in 250 ml of 0.25 M solution is

The major product of the following reaction is:

​​​Calculate the total ions and charge present in 4.2 gram ofN^3-.

The 'acid value' of an oil or fat is measured in terms of weight of

The compound containing ionic, covalent and coordinate covalent bonds is? 1) CHCl3. 2) Na2CO3. 3) NH4Cl. 4) C2H2

Explain why fluorine forms only, one oxo-acid, HOF?

A solution of [Ni(H2O)6]2+ is green but a solution of [Ni(CN)4]2− is colourless. Explaiin.

Which of the following has the highest reduction potential?

Which of the following reactions is possible?

What makes a glass different from a solid such as quartz ? Under what condition could quartz be converted into glass ?

Which of the following compounds contain an electron withdrawing group ?

An ideal gas expands in such a manner that its pressure and volume can be related by equation PV2= constant. During this process, the gas is

Choose the product(s) formed on free radical monochlorination of 2,2,4-trimethylpentane.

In the question arrange the compounds in increasing order of rate of reaction towards nucleophilic substitution. (a) (i) &lt; (ii) &lt; (iii) (b) (i) &lt; (iii) &lt; (ii) (c) (iii) &lt; (ii) &lt; (i) (d) (ii) &lt; (iii) &lt; (i)

Which one of the following is least reactive with water: -

In a Coolidge tube the intensity of X-rays produced depends on

Which of the following is the most basic oxide?

An ideal gas expands according to the law PV5/2=Constant. Molar heat capacity of such gas is c=cv−xR3, here x is (Answer upto two decimal places )

AB is an ionic solid.if the ratio of ionic radii of A+ and B- is 0.52 .what is the coordination number of B-?

0.250 moles of HCl gas occupies how many liters at STP?

Which of the following process does NOT occur during a chemical reaction?

The corect order of increasing C−O bond lengths in CO,CO2−3 and CO2 is:

The total energy of an electron in the nth orbit of a hydrogen atom is given by the formula En = -13.6 eV/n2. What does the negative energy for an electron indicate?

What is the difference between fractional abundance and natural abundance?

1.5 Moles each of hydrogen and Iodine were placed in a sealed 10L container maintained at 717K . At equilibrium 1.25 moles each of hydrogen and Iodine were left behind .The equilibrium constant Kc for the reaction H2+I2↔ 2HI gives at 717K.

Is this equation balanced:- MnO2+4HCl=Mncl2+2H2O+5Cl2

The IUPAC name of CH3 - CH(CH3) - CH2 - C CH is

The molarity of an aqueous solution of glycol is 12 M. The density of the solution is 1.392 g/mL. Find the mole fraction of glycol. (given, molar mass of glycol = 62 g/mol)

When a certain metal was irradiated with light of frequency 1.6 × 1016 Hz, the photoelectrons emitted had twice the kinetic energy as the photoelectrons emitted when the same metal was irradiated with light of frequency 1.0 × 1016 Hz. Calculate the threshold frequency (v0) for the metal.

Bond angles in H2O and BeCl2 respectively are:

What would be the IUPAC name of the compound shown below?

In the reaction CH3CH=CH2+H2O+[O]KMnO4−−−−−→Acid CH3−CH−CH2[O]−→X+HCOOH | | OH OH X is

Which of the following order(s) is/are correct for Nucleophilic substitution reaction?

The number of electrons involved in the reduction of nitrate ion to hydrazine is:

The electronic configuration of Eu 3+ ion is:

Suggest a best objective book of chemistry and physics for NEET

Which one of the following is most stable ?

CH2=CH2ConcH2SO4−−−−−−−→80∘CAH2O−−→BConcH2SO4−−−−−−−→170∘CCKMnO4/OH−−−−−−−−−−→273KD The incorrect statement is

Explain why alkyl halides though polar are immiscible with water?

Apples and oranges ________ a round shape.

Nitration of anisole gives majorly:

A gas occupies a volume of 300 cc at 27∘C and 620 mm pressure. The volume of the gas at 47∘C and 640 mm pressure is

In one litre of 0.1 M acetic solution, one millimole of HCl is added. The pH of the solution is: (Ka(CH3COOH)=2×10−5) (log 2 = 0.3, log 3 = 0.5, log 5 = 0.7)

Why helium is considered as p orbital instead of s orbital?

What is the molarity and molality of a 13% solution by weight of sulphurics acid with a density of 1.02g/ml. To waht volume should 100ml of this solution be diluted in order to prepare a 1.5N solution? Please Explain in detail and as simple as you can. Thank you for helping.

How do you explain the functionality of a monomer

Calculate the total ions and charge present in 4.2 gram ofN^3-.

In the question arrange the compounds in increasing order of rate of reaction towards nucleophilic substitution. (a) (i) < (ii) < (iii) (b) (i) < (iii) < (ii) (c) (iii) < (ii) < (i) (d) (ii) < (iii) < (i)