46295 + Interview Questions in Chemistry

1.	Correct order of basicity of the given compounds is:
Answer» Correct order of basicity of the given compounds is:

Discussion

2.	There are n electrons of charge e on a drop of oil of density ρ. It is in equilibrium in an electric field E. Then radius of drop is
Answer» There are n electrons of charge e on a drop of oil of density $ρ$ . It is in equilibrium in an electric field E. Then radius of drop is

Discussion

3.	What happens when we react methylbenzene with Br/hv , and also in presence of Br2/FeBr3 ? Would it be the same possibilities if it were chlorine ?
Answer» What happens when we react methylbenzene with Br/hv , and also in presence of Br2/FeBr3 ? Would it be the same possibilities if it were chlorine ?

Discussion

4.	In which of the following, addition of HBr does not take place against Markownikoff's rule? In other words, Anti- Markownikoff's addition of HBr is not observed for
Answer» In which of the following, addition of HBr does not take place against Markownikoff's rule? In other words, Anti- Markownikoff's addition of HBr is not observed for

Discussion

5.	An acid-base indictor has Kb of 1.0×10−5. The acid form of the indicator is red and the basic form is blue. Then:
Answer» An acid-base indictor has $K_{b}$ of $1.0 \times 10^{- 5}$ . The acid form of the indicator is red and the basic form is blue. Then:

Discussion

6.	Write the following sets in tabular form. H={x:x is an integer and -1/2 < x < 9/2}
Answer» Write the following sets in tabular form. H={x:x is an integer and -1/2 < x < 9/2}

6.

Write the following sets in tabular form. H={x:x is an integer and -1/2 < x < 9/2}

Answer»

Write the following sets in tabular form.

H={x:x is an integer and -1/2 < x < 9/2}

Discussion

7.	WHAT IS HYBRIDISATION STATE OF BENZYL CARBONIUM ION STEP BY STEP IN EASY FORM
Answer» WHAT IS HYBRIDISATION STATE OF BENZYL CARBONIUM ION STEP BY STEP IN EASY FORM

Discussion

8.	To convert alkyl halide to primary amine we use:
Answer» To convert alkyl halide to primary amine we use:

Discussion

9.	Solution A and B are formed by dissolving certain amount of glucose and sucrose in water. Vapour pressure of these solutions are 660 and 560 mm Hg respectively at 100 degree celsius. Ratio of molality of solutions A and B will be -(1) 14/13 (2) 33/14 (3) 15/35 (4) 35/15
Answer» Solution A and B are formed by dissolving certain amount of glucose and sucrose in water. Vapour pressure of these solutions are 660 and 560 mm Hg respectively at 100 degree celsius. Ratio of molality of solutions A and B will be - (1) 14/13 (2) 33/14 (3) 15/35 (4) 35/15

Discussion

10.	the average osmotic pressure of human blood is 7.8 bar at 37^° C .what is the concentration of aqueous NaCl solution that could be used in the blood stream a) .16 mol/litre b) .32 mol/litre c) .60 mol/ litre d) .45 mol/ litre
Answer» the average osmotic pressure of human blood is 7.8 bar at 37^° C .what is the concentration of aqueous NaCl solution that could be used in the blood stream a) .16 mol/litre b) .32 mol/litre c) .60 mol/ litre d) .45 mol/ litre

Discussion

11.	0.05M Nacl of 100 ml,20.1M MgCl2 of 200ml are mixed and made to 500 ml.Find the concentration of Cl-.
Answer» 0.05M Nacl of 100 ml,20.1M MgCl2 of 200ml are mixed and made to 500 ml.Find the concentration of Cl-.

Discussion

12.	The mass defect for the nucleus of helium is 0.0303 amu. The binding energy per nucleon in MeV is nearly
Answer» The mass defect for the nucleus of helium is $0.0303 amu$ . The binding energy per nucleon in $MeV$ is nearly

Discussion

13.	The octane number of a sample of petrol is 40. It means that its knocking property is equal to the mixture of
Answer» The octane number of a sample of petrol is 40. It means that its knocking property is equal to the mixture of

13.

The octane number of a sample of petrol is 40. It means that its knocking property is equal to the mixture of

Answer»

The octane number of a sample of petrol is 40. It means that its knocking property is equal to the mixture of

Discussion

14.	Malachite is an ore of:
Answer» Malachite is an ore of:

Discussion

15.	Upon boiling, why Mg(HCO3)2 converted to Mg(OH)2 but Ca(HCO3)2 converted to CaCO3?
Answer» Upon boiling, why Mg(HCO3)2 converted to Mg(OH)2 but Ca(HCO3)2 converted to CaCO3?

Discussion

16.	The number of electrons delivered at the cathode during electrolysis by a current of 1 ampere in 60 seconds i
Answer» The number of electrons delivered at the cathode during electrolysis by a current of 1 ampere in 60 seconds i

Discussion

17.	A tap drop water drops at one second interval. Find the dis†an ce between 3rd and 5th drop when 6th drop is just coming out from tap
Answer» A tap drop water drops at one second interval. Find the dis†an ce between 3rd and 5th drop when 6th drop is just coming out from tap

Discussion

18.	In a buffer solution containing weak acid HA and A−, if solute M+ is added, then which of the following would occur if MA is a sparingly soluble salt?
Answer» In a buffer solution containing weak acid HA and $A^{-}$ , if solute $M^{+}$ is added, then which of the following would occur if MA is a sparingly soluble salt?

Discussion

19.	Would the bulb glow in the circuit shown in figure?
Answer» Would the bulb glow in the circuit shown in figure?

Discussion

20.	Among the following the most reactive towards alcoholic KOH is :
Answer» Among the following the most reactive towards alcoholic KOH is :

Discussion

21.	Common Data: A thermodynamic cycle with an ideal gas as working fluid is shown below.The above cycle is represented on T−s plane by
Answer» Common Data: A thermodynamic cycle with an ideal gas as working fluid is shown below. The above cycle is represented on $T - s$ plane by

Discussion

22.	how does pressure affect solubility?
Answer» how does pressure affect solubility?

Discussion

23.	What do you mean by the Free State?
Answer» What do you mean by the Free State?

Discussion

24.	The ratio between radii of He+ ion and H atom is
Answer» The ratio between radii of $H e^{+}$ ion and H atom is

Discussion

25.	Q. The De Broglie wavelength of an electron in 4th orbit is ( R=radius of 1st orbit)
Answer» Q. The De Broglie wavelength of an electron in 4th orbit is ( R=radius of 1st orbit)

Discussion

26.	The product of the reaction sequence that follows is:
Answer» The product of the reaction sequence that follows is:

Discussion

27.	Valency of nitrogen in the Zwitter ion form of sulphanilic acid
Answer» Valency of nitrogen in the Zwitter ion form of sulphanilic acid

Discussion

28.	The distance of the closest approach of an alpha particle fired at a nucleus with kinetic energy K1 is ro. The distance of the closest approach when the α – particle is fired at the same nucleus with kinetic energy 2K1 will be.
Answer» The distance of the closest approach of an alpha particle fired at a nucleus with kinetic energy $K_{1}$ is $r_{o}$ . The distance of the closest approach when the α – particle is fired at the same nucleus with kinetic energy $2 K_{1}$ will be.

Discussion

29.	CH3CH2COOAg+Br2CCl4−−−→Xaq.KOH−−−−−→YredP4/Br2−−−−−−→Z.Product 'Z' is :
Answer» $C H_{3} C H_{2} C O O A g + B r_{2} C C l_{4} - -- \to X a q . K O H - ---- \to Y r e d P_{4} / B r_{2} - ----- \to Z .$ Product 'Z' is :

Discussion

30.	48. In the absence of Pauli's exclusion principle the electronic configuration of Li is (a) 1s3 (b) 1s2, 2p1 (c)1s2, 2s1 (d)1s1, 2s1, 2p1
Answer» 48. In the absence of Pauli's exclusion principle the electronic configuration of Li is (a) 1s3 (b) 1s2, 2p1 (c)1s2, 2s1 (d)1s1, 2s1, 2p1

Discussion

31.	Which of the following is not a property Of siliconsA.they are combustible B.they are water repliantC.they are polymeric liquids and solidsD.their viscosity does not change significantly with rise in temperature
Answer» Which of the following is not a property Of silicons A.they are combustible B.they are water repliant C.they are polymeric liquids and solids D.their viscosity does not change significantly with rise in temperature

Discussion

32.	How to find component of vector along another vector
Answer» How to find component of vector along another vector

Discussion

33.	Proper Definition Of Mixtures
Answer» Proper Definition Of Mixtures

Discussion

34.	Dimension for planks constant
Answer» Dimension for planks constant

Discussion

35.	why is the boiling point of paranitrophenol greater than the boiling point of orthonitrophenol when both have intramolecular hydrogen bond and don't form hydrogen bonds with other homomolecules
Answer» why is the boiling point of paranitrophenol greater than the boiling point of orthonitrophenol when both have intramolecular hydrogen bond and don't form hydrogen bonds with other homomolecules

Discussion

36.	28.On increasing the temperature by 40K, the rate of reaction increases by 16 times. What is temperature coefficient of the reaction?
Answer» 28.On increasing the temperature by 40K, the rate of reaction increases by 16 times. What is temperature coefficient of the reaction?

Discussion

37.	Write the most stable from the following:
Answer» Write the most stable from the following:

Discussion

38.	Find energy of each of the photons which (i) correspond to light of frequency 3× 1015 Hz. (ii) have wavelength of 0.50 Å.
Answer» Find energy of each of the photons which (i) correspond to light of frequency 3× $10^{15}$ Hz. (ii) have wavelength of 0.50 Å.

38.

Find energy of each of the photons which (i) correspond to light of frequency 3× 1015 Hz. (ii) have wavelength of 0.50 Å.

Answer»

Find energy of each of the photons which
(i) correspond to light of frequency 3× $10^{15}$ Hz.

(ii) have wavelength of 0.50 Å.

Discussion

39.	94.What is maximum number of degenerate orbitals in 3rd excited state of Li+2 ?
Answer» 94.What is maximum number of degenerate orbitals in 3rd excited state of Li+2 ?

Discussion

40.	Why non delocalisation is found in some compounds?
Answer» Why non delocalisation is found in some compounds?

Discussion

41.	What is the difference between induced charge and inducing charge ?
Answer» What is the difference between induced charge and inducing charge ?

Discussion

42.	38.Which liquid have maximum surface tension? (1) H_2O (2) C_6H_6 (3) CH_3OH (4) C_2H_5OH
Answer» 38.Which liquid have maximum surface tension? (1) H_2O (2) C_6H_6 (3) CH_3OH (4) C_2H_5OH

Discussion

43.	Being an unstable anti-matter, why is positron emitted in BETA Positive Decay (Positron Emission Decay)?
Answer» Being an unstable anti-matter, why is positron emitted in BETA Positive Decay (Positron Emission Decay)?

Discussion

44.	How Acylium show resonance ?whatever he does not satisfied the condn of resonance
Answer» How Acylium show resonance ?whatever he does not satisfied the condn of resonance

Discussion

45.	The electronic configuration which obeys Hund's rule for the ground state of carbon atom is:
Answer» The electronic configuration which obeys Hund's rule for the ground state of carbon atom is:

Discussion

46.	The mass of urea (Molar mass 60 g mol−1) in g that must be dissolved in 38 g of a solvent (having molar mass 57 g mol−1) , such that vapour pressure of the solution is reduced to 50% of the vapour pressure of pure solvent is
Answer» The mass of urea (Molar mass $60 g m o l^{- 1}$ ) in g that must be dissolved in $38 g$ of a solvent (having molar mass $57 g m o l^{- 1}$ ) , such that vapour pressure of the solution is reduced to $50 %$ of the vapour pressure of pure solvent is

Discussion

47.	A weak monobasic acid has undergone dissociation to the extent of 2% when the concentration is 0.01M at 250C. Calculate the dissociation constant of the acid.
Answer» A weak monobasic acid has undergone dissociation to the extent of $2 %$ when the concentration is 0.01M at 250C. Calculate the dissociation constant of the acid.

Discussion

48.	What is dispropanation reaction
Answer» What is dispropanation reaction

Discussion

49.	maximum number of spectral lines possible if electron is present in 4th shell and only two atoms are present in a sample would be:- (1) 2 (2) 4 (3) 3 (4) 5If sample contains only 1H atom in M shell on de-excitation to ground state it can give maximum spectral line:-(1) 10 (2) 6 (3) 2 (4) 1electrons in a sample of H atom from an excited state returns to ground state in one or more steps show emission of 10 lines. How many of these belong to visible region:- (1) 6 (2) 5 (3) 4 (4) 3
Answer» maximum number of spectral lines possible if electron is present in 4th shell and only two atoms are present in a sample would be:- (1) 2 (2) 4 (3) 3 (4) 5 If sample contains only 1H atom in M shell on de-excitation to ground state it can give maximum spectral line:- (1) 10 (2) 6 (3) 2 (4) 1 electrons in a sample of H atom from an excited state returns to ground state in one or more steps show emission of 10 lines. How many of these belong to visible region:- (1) 6 (2) 5 (3) 4 (4) 3

Discussion

50.	A metal salt solution when treated with dimethyl glyoxime and NH4OH gives a rose red complex. The metal is:
Answer» A metal salt solution when treated with dimethyl glyoxime and $N H_{4} O H$ gives a rose red complex. The metal is:

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Correct order of basicity of the given compounds is:

There are n electrons of charge e on a drop of oil of density ρ. It is in equilibrium in an electric field E. Then radius of drop is

What happens when we react methylbenzene with Br/hv , and also in presence of Br2/FeBr3 ? Would it be the same possibilities if it were chlorine ?

In which of the following, addition of HBr does not take place against Markownikoff's rule? In other words, Anti- Markownikoff's addition of HBr is not observed for

An acid-base indictor has Kb of 1.0×10−5. The acid form of the indicator is red and the basic form is blue. Then:

Write the following sets in tabular form. H={x:x is an integer and -1/2 &lt; x &lt; 9/2}

WHAT IS HYBRIDISATION STATE OF BENZYL CARBONIUM ION STEP BY STEP IN EASY FORM

To convert alkyl halide to primary amine we use:

Solution A and B are formed by dissolving certain amount of glucose and sucrose in water. Vapour pressure of these solutions are 660 and 560 mm Hg respectively at 100 degree celsius. Ratio of molality of solutions A and B will be -(1) 14/13 (2) 33/14 (3) 15/35 (4) 35/15

the average osmotic pressure of human blood is 7.8 bar at 37^° C .what is the concentration of aqueous NaCl solution that could be used in the blood stream a) .16 mol/litre b) .32 mol/litre c) .60 mol/ litre d) .45 mol/ litre

0.05M Nacl of 100 ml,20.1M MgCl2 of 200ml are mixed and made to 500 ml.Find the concentration of Cl-.

The mass defect for the nucleus of helium is 0.0303 amu. The binding energy per nucleon in MeV is nearly

The octane number of a sample of petrol is 40. It means that its knocking property is equal to the mixture of

Malachite is an ore of:

Upon boiling, why Mg(HCO3)2 converted to Mg(OH)2 but Ca(HCO3)2 converted to CaCO3?

The number of electrons delivered at the cathode during electrolysis by a current of 1 ampere in 60 seconds i

A tap drop water drops at one second interval. Find the dis†an ce between 3rd and 5th drop when 6th drop is just coming out from tap

In a buffer solution containing weak acid HA and A−, if solute M+ is added, then which of the following would occur if MA is a sparingly soluble salt?

Would the bulb glow in the circuit shown in figure?

Among the following the most reactive towards alcoholic KOH is :

Common Data: A thermodynamic cycle with an ideal gas as working fluid is shown below.The above cycle is represented on T−s plane by

how does pressure affect solubility?

What do you mean by the Free State?

The ratio between radii of He+ ion and H atom is

Q. The De Broglie wavelength of an electron in 4th orbit is ( R=radius of 1st orbit)

The product of the reaction sequence that follows is:

Valency of nitrogen in the Zwitter ion form of sulphanilic acid

The distance of the closest approach of an alpha particle fired at a nucleus with kinetic energy K1 is ro. The distance of the closest approach when the α – particle is fired at the same nucleus with kinetic energy 2K1 will be.

CH3CH2COOAg+Br2CCl4−−−→Xaq.KOH−−−−−→YredP4/Br2−−−−−−→Z.Product 'Z' is :

48. In the absence of Pauli's exclusion principle the electronic configuration of Li is (a) 1s3 (b) 1s2, 2p1 (c)1s2, 2s1 (d)1s1, 2s1, 2p1

Which of the following is not a property Of siliconsA.they are combustible B.they are water repliantC.they are polymeric liquids and solidsD.their viscosity does not change significantly with rise in temperature

How to find component of vector along another vector

Proper Definition Of Mixtures

Dimension for planks constant

why is the boiling point of paranitrophenol greater than the boiling point of orthonitrophenol when both have intramolecular hydrogen bond and don't form hydrogen bonds with other homomolecules

28.On increasing the temperature by 40K, the rate of reaction increases by 16 times. What is temperature coefficient of the reaction?

Write the most stable from the following:

Find energy of each of the photons which (i) correspond to light of frequency 3× 1015 Hz. (ii) have wavelength of 0.50 Å.

94.What is maximum number of degenerate orbitals in 3rd excited state of Li+2 ?

Why non delocalisation is found in some compounds?

What is the difference between induced charge and inducing charge ?

38.Which liquid have maximum surface tension? (1) H_2O (2) C_6H_6 (3) CH_3OH (4) C_2H_5OH

Being an unstable anti-matter, why is positron emitted in BETA Positive Decay (Positron Emission Decay)?

How Acylium show resonance ?whatever he does not satisfied the condn of resonance

The electronic configuration which obeys Hund's rule for the ground state of carbon atom is:

The mass of urea (Molar mass 60 g mol−1) in g that must be dissolved in 38 g of a solvent (having molar mass 57 g mol−1) , such that vapour pressure of the solution is reduced to 50% of the vapour pressure of pure solvent is

A weak monobasic acid has undergone dissociation to the extent of 2% when the concentration is 0.01M at 250C. Calculate the dissociation constant of the acid.

What is dispropanation reaction

A metal salt solution when treated with dimethyl glyoxime and NH4OH gives a rose red complex. The metal is:

Write the following sets in tabular form. H={x:x is an integer and -1/2 < x < 9/2}