46295 + Interview Questions in Chemistry

1.	Is this equal 2×10^4cm and 2×10^6mm
Answer» Is this equal 2×10^4cm and 2×10^6mm

Discussion

2.	what is equivalent resonance structure and how it affects bond stabilityv order
Answer» what is equivalent resonance structure and how it affects bond stabilityv order

Discussion

3.	Consider the electronic configuration 1s^2 2s^2 2p^2xOptions:It violates Aufbau principleShould have chosen It violates Hund's ruleWrong It violates Pauli's exclusion principle
Answer» Consider the electronic configuration 1s^2 2s^2 2p^2x Options: It violates Aufbau principle Should have chosen It violates Hund's rule Wrong It violates Pauli's exclusion principle

Discussion

4.	Identify the compound that will react with Hinsberg's reagent to give a solid which dissolves in alkali.
Answer» Identify the compound that will react with Hinsberg's reagent to give a solid which dissolves in alkali.

Discussion

5.	. If in a Newton’s rings experiment, the air in the inter space is replaced by liquid of refractive index 1.33, in what proportion would be diameters of the ring change?
Answer» . If in a Newton’s rings experiment, the air in the inter space is replaced by liquid of refractive index 1.33, in what proportion would be diameters of the ring change?

Discussion

6.	The percentage of hydrolysis in 0.003 M aqueous solution of NaOCN is: (Ka for HOCN = 3.33 × 10−4 M)
Answer» The percentage of hydrolysis in $0.003 M$ aqueous solution of $N a O C N$ is: ( $K_{a}$ for $H O C N$ = $3.33 \times 10^{- 4} M$ )

6.

The percentage of hydrolysis in 0.003 M aqueous solution of NaOCN is: (Ka for HOCN = 3.33 × 10−4 M)

Answer»

The percentage of hydrolysis in $0.003 M$ aqueous solution of $N a O C N$ is:

( $K_{a}$ for $H O C N$ = $3.33 \times 10^{- 4} M$ )

Discussion

7.	How many sigma and pi bonds are present in benzene ring??
Answer» How many sigma and pi bonds are present in benzene ring??

Discussion

8.	Which of the following reactions will be favoured at low pressure?
Answer» Which of the following reactions will be favoured at low pressure?

Discussion

9.	26. Which one of the following electrolytes are used in Down's process of extracting Sodium metal? 1)NaCl+CaCl2 2)NaCl 3)NaOH+CaCal2 4) CaCl2 only
Answer» 26. Which one of the following electrolytes are used in Down's process of extracting Sodium metal? 1)NaCl+CaCl2 2)NaCl 3)NaOH+CaCal2 4) CaCl2 only

Discussion

10.	The ratio of the distances with the nearest neighbours in a body centered cubic (BCC) and a face centered cubic (FCC) crystals with the same unit cell edge length is:
Answer» The ratio of the distances with the nearest neighbours in a body centered cubic (BCC) and a face centered cubic (FCC) crystals with the same unit cell edge length is:

Discussion

11.	No of atoms in 64 amu of He is
Answer» No of atoms in 64 amu of He is

Discussion

12.	The final product C obtained in this reaction is:
Answer» The final product C obtained in this reaction is:

Discussion

13.	16. the ratio C(p,m) / C(v,m) for the linear triatomic molecules including vibration contributuion is given by? is there any specific formula for this ?
Answer» 16. the ratio C(p,m) / C(v,m) for the linear triatomic molecules including vibration contributuion is given by? is there any specific formula for this ?

Discussion

14.	On rising temperature and decreasing pressure inCsCl solid(1) C.N. of metal ion increases from 6 to 8(2) Number of formula unit per unit cell (Z) changesfrom one to four(3) Density of unit cell is increased(4)(radius ratio) is increased
Answer» On rising temperature and decreasing pressure inCsCl solid(1) C.N. of metal ion increases from 6 to 8(2) Number of formula unit per unit cell (Z) changesfrom one to four(3) Density of unit cell is increased(4)(radius ratio) is increased

Discussion

15.	when initial molar concentration of eqillibrium reaction is greater than ginal molar concenntration then value of △ ng must b
Answer» when initial molar concentration of eqillibrium reaction is greater than ginal molar concenntration then value of △ ng must b

Discussion

16.	If the observed and the theoretical molecular mass of NaCl is found to be 31.80 and 58.50, then the percentage dissociation of NaCl is
Answer» If the observed and the theoretical molecular mass of NaCl is found to be 31.80 and 58.50, then the percentage dissociation of NaCl is

Discussion

17.	Kindly explain the RECIPROCAL OF A VECTOR using pictorial representation
Answer» Kindly explain the RECIPROCAL OF A VECTOR using pictorial representation

Discussion

18.	Which important property did Mendeleev use to classify the elements in his periodic table and did he stick to that?
Answer» Which important property did Mendeleev use to classify the elements in his periodic table and did he stick to that?

Discussion

19.	Where is cetriethylaluminium chloride is used
Answer» Where is cetriethylaluminium chloride is used

Discussion

20.	What influence does an increase in product concentration have on the system which is in equilibrium?
Answer» What influence does an increase in product concentration have on the system which is in equilibrium?

Discussion

21.	A particle was initially at a point at height Re from the earth's surface. The work done to bring this particle to earth's surface is [ −xGmMe2Re]. Find the value of x. (m = mass of particle). ___
Answer» A particle was initially at a point at height $R_{e}$ from the earth's surface. The work done to bring this particle to earth's surface is [ $\frac{- x G m M_{e}}{2 R_{e}}$ ]. Find the value of x. (m = mass of particle). ___

Discussion

22.	The ease of adsorption of the hydrates alkali metal ions on ion-exchange resins follows the order (1.) K^+ < Na^+ < Rb^+ < Li+ [AIPMT (Prelims) - 2012](2.) Na^+ < Li^+ < K^+ < Rb+(3.) Li^+ < K^+ < Na^+ < Rb ^+(4.) Rb^+ < K^+ < Na^+ < Li^+
Answer» The ease of adsorption of the hydrates alkali metal ions on ion-exchange resins follows the order (1.) K^+ < Na^+ < Rb^+ < Li+ [AIPMT (Prelims) - 2012] (2.) Na^+ < Li^+ < K^+ < Rb+ (3.) Li^+ < K^+ < Na^+ < Rb ^+ (4.) Rb^+ < K^+ < Na^+ < Li^+

Discussion

23.	Due to Frenkel defect the density of ionic solids
Answer» Due to Frenkel defect the density of ionic solids

Discussion

24.	H2S4O6 oxidation state of all suphurAnd Br3O8
Answer» H2S4O6 oxidation state of all suphur And Br3O8

Discussion

25.	If no gas is perfect then What is the use of gas laws?
Answer» If no gas is perfect then What is the use of gas laws?

Discussion

26.	What are neutrons? Who discovered these particles?
Answer» What are neutrons? Who discovered these particles?

Discussion

27.	A given solution of H2SO4 is labelled as 49% (w/w), then the correct statement regarding the solution is (d=1.3 g/mL)
Answer» A given solution of $H_{2} S O_{4}$ is labelled as 49% (w/w), then the correct statement regarding the solution is $(d = 1.3 g/mL)$

Discussion

28.	Of the given hydrides of group 16 Elements, which is the most stable thermodynamically?
Answer» Of the given hydrides of group 16 Elements, which is the most stable thermodynamically?

Discussion

29.	Find energy level of electron present in Li2+ having velocity 2.18×106m/sec.
Answer» Find energy level of electron present in $L i^{2 +}$ having velocity $2.18 \times 10^{6} m / s e c .$

Discussion

30.	The oxidation state of Mn in K2MnO4 is
Answer» The oxidation state of $M n$ in $K_{2} M n O_{4}$ is

Discussion

31.	The enthalpy of vaporization of water at 100oC is 40.63 kJ mol−1. It's entropy change for the vaporization would be :
Answer» The enthalpy of vaporization of water at $100^{o} C$ is $40.63 k J m o l^{- 1}$ . It's entropy change for the vaporization would be :

Discussion

32.	The number of mole of electron(s) exchanged whenone mole of Mohr’s salt is oxidised in acidic KMnO4solution is(1) 1 (2) 2(3) 3 (4) 4
Answer» The number of mole of electron(s) exchanged when one mole of Mohr’s salt is oxidised in acidic KMnO4 solution is (1) 1 (2) 2 (3) 3 (4) 4

Discussion

33.	In which of the following things electric cells are not used?
Answer» In which of the following things electric cells are not used?

Discussion

34.	For an ideal binary solution with PoA>PoB, which of the following relation between xA (mole fraction in liquid)
Answer» For an ideal binary solution with $P_{o A} > P_{o B},$ which of the following relation between $x_{A}$ (mole fraction in liquid)

Discussion

35.	what is BEC?WHAT IS GRAPHICAL REPRESENTATION OF MOTION?
Answer» what is BEC? WHAT IS GRAPHICAL REPRESENTATION OF MOTION?

Discussion

36.	The volume of 3M HNO3 required to oxidise 8g Fe2+ is
Answer» The volume of 3M HNO3 required to oxidise 8g Fe2+ is

Discussion

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

Discussion

38.	R−CO−R?→R−CH2−R How many among the following regents can make the conversion? (i) Zn−Hg/HCl, (ii) LiAlH4, (iii) CHCl3/KOH (iv) N2H4/OH−, (v) HS−CH2−CH2−SH, H2/Ni (vi) SeO2, (vii) PCC
Answer» $R - C O - R ? \to R - C H_{2} - R$ How many among the following regents can make the conversion? $(i) Z n - H g / H C l, (i i) L i A l H_{4}, (i i i) C H C l_{3} / K O H$ $(i v) N_{2} H_{4} / O H^{-}, (v) H S - C H_{2} - C H_{2} - S H, H_{2} / N i$ $(v i) S e O_{2}, (v i i) P C C$

Discussion

39.	The pH scale developed by sorenson has a pH range of acids from :
Answer» The pH scale developed by sorenson has a pH range of acids from :

Discussion

40.	CH3−BrMg−−−→ether (CH3)3C−OH−−−−−−−−−→A(gas).′A′is
Answer» $C H_{3} - B r M g - -- \to e t h e r (C H_{3})_{3} C - O H - -------- \to A (g a s) .^{'} A^{'} i s$

Discussion

41.	at 25 degree celsius the molar conductance at infinite dilution for HCl solution is 4.25*10-2 ohm- m2 mol- , while its specific conductanceis 382.5 ohm m- . if degree of dissociation is 90% , the molarity of the solution is
Answer» at 25 degree celsius the molar conductance at infinite dilution for HCl solution is 4.25*10-2 ohm- m2 mol- , while its specific conductanceis 382.5 ohm m- . if degree of dissociation is 90% , the molarity of the solution is

Discussion

42.	A galvanic cell is formed by immersing Ag(s) in AgNO3(aq,0.1 M) and Cu(s) in CuSO4(aq,4M) at 298 KCalculate the EMF of the cell. Given:E0Ag+/Ag=0.80 VE0Cu2+/Cu=0.34 V
Answer» A galvanic cell is formed by immersing $A g (s)$ in $A g N O_{3} (a q, 0.1 M)$ and $C u (s)$ in $C u S O_{4} (a q, 4 M)$ at $298 K$ Calculate the EMF of the cell. Given: $E_{A g^{+} / A g}^{0} = 0.80 V$ $E_{C u^{2 +} / C u}^{0} = 0.34 V$

Discussion

43.	The nucleophilicities of CH⊖3,NH⊖2,OH⊖&F⊖ decrease in which order?
Answer» The nucleophilicities of $C H_{3}^{⊖}, N H_{2}^{⊖}, O H^{⊖} & F^{⊖}$ decrease in which order?

Discussion

44.	To write the formula of carbon monoxide, we have to criss cross the valencies of carbon and oxygen whicg gives us CO_2. wh
Answer» To write the formula of carbon monoxide, we have to criss cross the valencies of carbon and oxygen whicg gives us CO_2. wh

Discussion

45.	Whatis the equilibrium concentration of each of the substances in theequilibrium when the initial concentration of ICl was 0.78 M?
Answer» What is the equilibrium concentration of each of the substances in the equilibrium when the initial concentration of ICl was 0.78 M?

45.

Whatis the equilibrium concentration of each of the substances in theequilibrium when the initial concentration of ICl was 0.78 M?

Answer»

What
is the equilibrium concentration of each of the substances in the
equilibrium when the initial concentration of ICl was 0.78 M?

Discussion

46.	What is differential calculus
Answer» What is differential calculus

Discussion

47.	What is hybridisation of SiC
Answer» What is hybridisation of SiC

Discussion

48.	(NH4)2MoO4 is used for the detection of:
Answer» (NH₄)₂MoO₄ is used for the detection of:

Discussion

49.	why C-O Bond length is diff. in CO_3^{2-} AND H2CO_3
Answer» why C-O Bond length is diff. in CO_3^{2-} AND H2CO_3

Discussion

50.	A gas absorbs a photon of 355 nm and emits two wavelengths. If one of the emission is at 680 nm, the other is at:
Answer» A gas absorbs a photon of 355 nm and emits two wavelengths. If one of the emission is at 680 nm, the other is at:

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Is this equal 2×10^4cm and 2×10^6mm

what is equivalent resonance structure and how it affects bond stabilityv order

Consider the electronic configuration 1s^2 2s^2 2p^2xOptions:It violates Aufbau principleShould have chosen It violates Hund's ruleWrong It violates Pauli's exclusion principle

Identify the compound that will react with Hinsberg's reagent to give a solid which dissolves in alkali.

. If in a Newton’s rings experiment, the air in the inter space is replaced by liquid of refractive index 1.33, in what proportion would be diameters of the ring change?

The percentage of hydrolysis in 0.003 M aqueous solution of NaOCN is: (Ka for HOCN = 3.33 × 10−4 M)

How many sigma and pi bonds are present in benzene ring??

Which of the following reactions will be favoured at low pressure?

26. Which one of the following electrolytes are used in Down's process of extracting Sodium metal? 1)NaCl+CaCl2 2)NaCl 3)NaOH+CaCal2 4) CaCl2 only

The ratio of the distances with the nearest neighbours in a body centered cubic (BCC) and a face centered cubic (FCC) crystals with the same unit cell edge length is:

No of atoms in 64 amu of He is

The final product C obtained in this reaction is:

16. the ratio C(p,m) / C(v,m) for the linear triatomic molecules including vibration contributuion is given by? is there any specific formula for this ?

On rising temperature and decreasing pressure inCsCl solid(1) C.N. of metal ion increases from 6 to 8(2) Number of formula unit per unit cell (Z) changesfrom one to four(3) Density of unit cell is increased(4)(radius ratio) is increased

when initial molar concentration of eqillibrium reaction is greater than ginal molar concenntration then value of △ ng must b

If the observed and the theoretical molecular mass of NaCl is found to be 31.80 and 58.50, then the percentage dissociation of NaCl is

Kindly explain the RECIPROCAL OF A VECTOR using pictorial representation

Which important property did Mendeleev use to classify the elements in his periodic table and did he stick to that?

Where is cetriethylaluminium chloride is used

What influence does an increase in product concentration have on the system which is in equilibrium?

A particle was initially at a point at height Re from the earth's surface. The work done to bring this particle to earth's surface is [ −xGmMe2Re]. Find the value of x. (m = mass of particle). ___

The ease of adsorption of the hydrates alkali metal ions on ion-exchange resins follows the order (1.) K^+ < Na^+ < Rb^+ < Li+ [AIPMT (Prelims) - 2012](2.) Na^+ < Li^+ < K^+ < Rb+(3.) Li^+ < K^+ < Na^+ < Rb ^+(4.) Rb^+ < K^+ < Na^+ < Li^+

Due to Frenkel defect the density of ionic solids

H2S4O6 oxidation state of all suphurAnd Br3O8

If no gas is perfect then What is the use of gas laws?

What are neutrons? Who discovered these particles?

A given solution of H2SO4 is labelled as 49% (w/w), then the correct statement regarding the solution is (d=1.3 g/mL)

Of the given hydrides of group 16 Elements, which is the most stable thermodynamically?

Find energy level of electron present in Li2+ having velocity 2.18×106m/sec.

The oxidation state of Mn in K2MnO4 is

The enthalpy of vaporization of water at 100oC is 40.63 kJ mol−1. It's entropy change for the vaporization would be :

The number of mole of electron(s) exchanged whenone mole of Mohr’s salt is oxidised in acidic KMnO4solution is(1) 1 (2) 2(3) 3 (4) 4

In which of the following things electric cells are not used?

For an ideal binary solution with PoA&gt;PoB, which of the following relation between xA (mole fraction in liquid)

what is BEC?WHAT IS GRAPHICAL REPRESENTATION OF MOTION?

The volume of 3M HNO3 required to oxidise 8g Fe2+ is

Molecualr weight of phorone is equal to

R−CO−R?→R−CH2−R How many among the following regents can make the conversion? (i) Zn−Hg/HCl, (ii) LiAlH4, (iii) CHCl3/KOH (iv) N2H4/OH−, (v) HS−CH2−CH2−SH, H2/Ni (vi) SeO2, (vii) PCC

The pH scale developed by sorenson has a pH range of acids from :

CH3−BrMg−−−→ether (CH3)3C−OH−−−−−−−−−→A(gas).′A′is

at 25 degree celsius the molar conductance at infinite dilution for HCl solution is 4.25*10-2 ohm- m2 mol- , while its specific conductanceis 382.5 ohm m- . if degree of dissociation is 90% , the molarity of the solution is

A galvanic cell is formed by immersing Ag(s) in AgNO3(aq,0.1 M) and Cu(s) in CuSO4(aq,4M) at 298 KCalculate the EMF of the cell. Given:E0Ag+/Ag=0.80 VE0Cu2+/Cu=0.34 V

The nucleophilicities of CH⊖3,NH⊖2,OH⊖&amp;F⊖ decrease in which order?

To write the formula of carbon monoxide, we have to criss cross the valencies of carbon and oxygen whicg gives us CO_2. wh

Whatis the equilibrium concentration of each of the substances in theequilibrium when the initial concentration of ICl was 0.78 M?

What is differential calculus

What is hybridisation of SiC

(NH4)2MoO4 is used for the detection of:

why C-O Bond length is diff. in CO_3^{2-} AND H2CO_3

A gas absorbs a photon of 355 nm and emits two wavelengths. If one of the emission is at 680 nm, the other is at:

For an ideal binary solution with PoA>PoB, which of the following relation between xA (mole fraction in liquid)

The nucleophilicities of CH⊖3,NH⊖2,OH⊖&F⊖ decrease in which order?