46295 + Interview Questions in Chemistry

1.	The difference in the number of hydrogen atom between gluconic acid and saccharic acid is:
Answer» The difference in the number of hydrogen atom between gluconic acid and saccharic acid is:

Discussion

2.	How to write the molecular orbital diagram of carbon 2 molecule?
Answer» How to write the molecular orbital diagram of carbon 2 molecule?

Discussion

3.	x^5+x+1
Answer» x^5+x+1

Discussion

4.	Number of next to next nearest neighbour atoms in fcc
Answer» Number of next to next nearest neighbour atoms in fcc

Discussion

5.	What is macroscopic equilibrium?
Answer» What is macroscopic equilibrium?

Discussion

6.	42. if each orbitals can holds a maximum of 3 electrons. the no of elements in 2nd periodic table (long form) is ?
Answer» 42. if each orbitals can holds a maximum of 3 electrons. the no of elements in 2nd periodic table (long form) is ?

Discussion

7.	what is the equivalent weight of water? how to calculate it?
Answer» what is the equivalent weight of water? how to calculate it?

Discussion

8.	For the reaction, 2Cl(g) → Cl2(g), what are the signs of ΔH and ΔS ?
Answer» For the reaction, 2Cl₍_g) → Cl₂₍_g_), what are the signs of ΔH and ΔS ?

8.

For the reaction, 2Cl(g) → Cl2(g), what are the signs of ΔH and ΔS ?

Answer»

For
the reaction,

2Cl₍_g)
→ Cl₂₍_g_),
what are the signs of ΔH
and ΔS
?

Discussion

9.	64. Equal volumes of molar HCL and H2SO4 are neutralized by dilute NAOH solution and x Kcal and y Kcal of heat is liberated respectively. find relation between x and y.
Answer» 64. Equal volumes of molar HCL and H2SO4 are neutralized by dilute NAOH solution and x Kcal and y Kcal of heat is liberated respectively. find relation between x and y.

Discussion

10.	Hydrogen chloride gas on reaction with ammonia gives __
Answer» Hydrogen chloride gas on reaction with ammonia gives __

Discussion

11.	Which of the following is the correct order of decreasing SN2 reactivity
Answer» Which of the following is the correct order of decreasing $S N^{2}$ reactivity

Discussion

12.	42 : write all the isomers of C2ABCD??
Answer» 42 : write all the isomers of C2ABCD??

Discussion

13.	Copper matte is a molten mixture of
Answer» Copper matte is a molten mixture of

Discussion

14.	Why atoms are very reactive?
Answer» Why atoms are very reactive?

Discussion

15.	As the temperature is raised from 20∘C to 40∘C. The average kinetic energy of neon atoms changes by a factor of which of the following:
Answer» As the temperature is raised from $20^{\circ} C$ to $40^{\circ} C$ . The average kinetic energy of neon atoms changes by a factor of which of the following:

Discussion

16.	Name the reagents used in the following reactions: (i) Oxidation of a primary alcohol to carboxylic acid. (ii) Oxidation of a primary alcohol to aldehyde. (iii) Bromination of phenol to 2,4,6-tribromophenol. (iv) Benzyl alcohol to benzoic acid. (v) Dehydration of propan-2-ol to propene. (vi) Butan-2-one to butan-2-ol.
Answer» Name the reagents used in the following reactions: (i) Oxidation of a primary alcohol to carboxylic acid. (ii) Oxidation of a primary alcohol to aldehyde. (iii) Bromination of phenol to 2,4,6-tribromophenol. (iv) Benzyl alcohol to benzoic acid. (v) Dehydration of propan-2-ol to propene. (vi) Butan-2-one to butan-2-ol.

16.

Name the reagents used in the following reactions: (i) Oxidation of a primary alcohol to carboxylic acid. (ii) Oxidation of a primary alcohol to aldehyde. (iii) Bromination of phenol to 2,4,6-tribromophenol. (iv) Benzyl alcohol to benzoic acid. (v) Dehydration of propan-2-ol to propene. (vi) Butan-2-one to butan-2-ol.

Answer»

Name
the reagents used in the following reactions:

(i)
Oxidation of a primary alcohol to carboxylic acid.

(ii)
Oxidation of a primary alcohol to aldehyde.

(iii)
Bromination of phenol to 2,4,6-tribromophenol.

(iv)
Benzyl alcohol to benzoic acid.

(v)
Dehydration of propan-2-ol to propene.

(vi)
Butan-2-one to butan-2-ol.

Discussion

17.	how conductivity is related to cunduction in a elactrochemical cell?
Answer» how conductivity is related to cunduction in a elactrochemical cell?

Discussion

18.	Gold crystallizes in ccp structure. The total number of voids present in 197g of gold will be
Answer» Gold crystallizes in ccp structure. The total number of voids present in 197g of gold will be

Discussion

19.	Forthe reaction:2A+ B → A2Btherate = k[A][B]2with k= 2.0 × 10−6mol−2L2s−1.Calculate the initial rate of the reaction when [A] = 0.1 mol L−1,[B] = 0.2 mol L−1.Calculate the rate of reaction after [A] is reduced to 0.06 mol L−1.
Answer» For the reaction: 2A + B → A₂B the rate = k[A][B]² with k = 2.0 × 10⁻⁶ mol⁻² L² s⁻¹. Calculate the initial rate of the reaction when [A] = 0.1 mol L⁻¹, [B] = 0.2 mol L⁻¹. Calculate the rate of reaction after [A] is reduced to 0.06 mol L⁻¹.

19.

Forthe reaction:2A+ B → A2Btherate = k[A][B]2with k= 2.0 × 10−6mol−2L2s−1.Calculate the initial rate of the reaction when [A] = 0.1 mol L−1,[B] = 0.2 mol L−1.Calculate the rate of reaction after [A] is reduced to 0.06 mol L−1.

Answer»

For
the reaction:

2A
+ B → A₂B

the
rate = k[A][B]²
with k
= 2.0 × 10⁻⁶
mol⁻²
L²
s⁻¹.
Calculate the initial rate of the reaction when [A] = 0.1 mol L⁻¹,
[B] = 0.2 mol L⁻¹.
Calculate the rate of reaction after [A] is reduced to 0.06 mol L⁻¹.

Discussion

20.	What should be the condition of ionization energy, atomization enthalpy and hydration enthalpy for higher reduction potential?
Answer» What should be the condition of ionization energy, atomization enthalpy and hydration enthalpy for higher reduction potential?

Discussion

21.	Which of the following particle is emitted in the reaction 13Al27+2He4→14P30+....
Answer» Which of the following particle is emitted in the reaction $_{13} A l^{27} +_{2} H e^{4} \to_{14} P^{30} +$ ....

Discussion

22.	Q1. What is difference between ionic radius and atomic radius?
Answer» Q1. What is difference between ionic radius and atomic radius?

Discussion

23.	What are the characteristics of the following colloids ? Give one example of each. (i) Multimolecular colloids (ii) Lyophobic sols (iii) Emulsions
Answer» What are the characteristics of the following colloids ? Give one example of each. (i) Multimolecular colloids (ii) Lyophobic sols (iii) Emulsions

Discussion

24.	The enthalpy of hydrogenation of cyclohexene is -119.5 KJ. If resonance energy of benzene is -150.4 KJ its enthapy of hydrogenation will be
Answer» The enthalpy of hydrogenation of cyclohexene is -119.5 KJ. If resonance energy of benzene is -150.4 KJ its enthapy of hydrogenation will be

Discussion

25.	if a particle is projected at an angle ϑ with the horizontal then its angle of elevation of particle at maximum height from point of projection is
Answer» if a particle is projected at an angle ϑ with the horizontal then its angle of elevation of particle at maximum height from point of projection is

Discussion

26.	34. Fe+2 -> Fe+3 + e MnO4- + 5e -> Mn+2 The ratio of stoichiometric coefficients if Fe+2 and MnO4- is ?
Answer» 34. Fe+2 -> Fe+3 + e MnO4- + 5e -> Mn+2 The ratio of stoichiometric coefficients if Fe+2 and MnO4- is ?

Discussion

27.	chlorophyll the green pigment in plants has the molecular formula C55H72MGN4O5 IF 0.012g of mg is available to a plant for chlorophyll synthesis, how many grams of carbon will be required to completely use up the magnesium
Answer» chlorophyll the green pigment in plants has the molecular formula C55H72MGN4O5 IF 0.012g of mg is available to a plant for chlorophyll synthesis, how many grams of carbon will be required to completely use up the magnesium

Discussion

28.	Why nitrogen has more ionization potential than oxyge
Answer» Why nitrogen has more ionization potential than oxyge

Discussion

29.	A vessel contains CH4 and O2 in 3:1 molar ratio at 16 atm pressure. THen find out the initial composition of the gaseous mixture coming out of a small hole made in the vessel?
Answer» A vessel contains CH4 and O2 in 3:1 molar ratio at 16 atm pressure. THen find out the initial composition of the gaseous mixture coming out of a small hole made in the vessel?

Discussion

30.	Calculate the EMF (inV) of the following electrochemical cell at 25o C:Pt(s)\|H2(g, 1 bar)\|H+(aq, 0.01 M)\|\|Cu2+(0.1 M)\|CuGive your answer upto two decimals only.(Given: Eo for Cu2+\|Cu=0.34 V, 2.303RTF=0.059 V)
Answer» Calculate the EMF $(inV)$ of the following electrochemical cell at $25^{o} C$ : $P t (s) \| H_{2} (g, 1 bar) \| H^{+} (a q, 0.01 M) \| \| C u^{2 +} (0.1 M) \| C u$ Give your answer upto two decimals only. (Given: $E^{o} for C u^{2 +} \| C u = 0.34 V$ , $\frac{2.303 R T}{F} = 0.059 V$ )

Discussion

31.	18 If dx by dt =k (H) +n and rate become 100times when pH changes from 2to 1 the order of reaction is : (a) 1 (b) 2 (c) 3 (d) 0
Answer» 18 If dx by dt =k (H) +n and rate become 100times when pH changes from 2to 1 the order of reaction is : (a) 1 (b) 2 (c) 3 (d) 0

Discussion

32.	Describe two important uses of each of the following: (i) caustic soda (ii) sodium carbonate (iii) quicklime.
Answer» Describe two important uses of each of the following: (i) caustic soda (ii) sodium carbonate (iii) quicklime.

Discussion

33.	Order of reactivity of nucleophilic substitution reaction??
Answer» Order of reactivity of nucleophilic substitution reaction??

Discussion

34.	Which of the following can change the value of the equilibrium constant for a reaction
Answer» Which of the following can change the value of the equilibrium constant for a reaction

Discussion

35.	160/ Most basic isa)CH3C(NH)(NH2)(b) CH3CH2NH2( c)(CH3)2NH(d) CH3CONH
Answer» 160/ Most basic isa)CH3C(NH)(NH2)(b) CH3CH2NH2( c)(CH3)2NH(d) CH3CONH

Discussion

36.	The no. Of structural isomers possible for C4H8 is
Answer» The no. Of structural isomers possible for C4H8 is

Discussion

37.	Why does c-cl bond have higher dipole movement than c-f bond
Answer» Why does c-cl bond have higher dipole movement than c-f bond

Discussion

38.	26 Calculate the binary collisions per cc of N2 gas at 1 atm and 25 degree Celsius. Diameter of N2 molecule =3.74angstrom
Answer» 26 Calculate the binary collisions per cc of N2 gas at 1 atm and 25 degree Celsius. Diameter of N2 molecule =3.74angstrom

Discussion

39.	What is the molality of an aquous solution having 0.9 mole fractionof solvent?
Answer» What is the molality of an aquous solution having 0.9 mole fractionof solvent?

Discussion

40.	Q. Which one of the following compounds does not react with bromine?a) Ethylamineb) Propanec) Phenold) Chloroform
Answer» Q. Which one of the following compounds does not react with bromine? a) Ethylamine b) Propane c) Phenol d) Chloroform

Discussion

41.	Lim tend to infinity (1+1/n)en
Answer» Lim tend to infinity (1+1/n)en

Discussion

42.	25. What volume of oxygen is required for complete combustion of 2.2g of propane at NTP
Answer» 25. What volume of oxygen is required for complete combustion of 2.2g of propane at NTP

Discussion

43.	What is alkenynes?
Answer» What is alkenynes?

Discussion

44.	5. AB crystallizes in a body centerd cubic lattice with edge length "a" equal to 387 pm. the distance between two oppositely charged ions in the lattice
Answer» 5. AB crystallizes in a body centerd cubic lattice with edge length "a" equal to 387 pm. the distance between two oppositely charged ions in the lattice

Discussion

45.	The observed dipole moment of HCl is 1.03D. If the inter atomic distance is 1.27∘A, calculate its % ionic character :
Answer» The observed dipole moment of HCl is 1.03D. If the inter atomic distance is $1.27 \circ A$ , calculate its % ionic character :

Discussion

46.	C_{}H_5-C≡ CH\xrightarrow[{H_2SO_4}]{Hg^{+2
Answer» C_{}H_5-C≡ CH\xrightarrow[{H_2SO_4}]{Hg^{+2

Discussion

47.	Why is glycine considered as 'the only amino acid that is optically inactive'?
Answer» Why is glycine considered as 'the only amino acid that is optically inactive'?

Discussion

48.	What is the hybridization on carbon (3)?
Answer» What is the hybridization on carbon (3)?

48.

What is the hybridization on carbon (3)?

Answer»

What is the hybridization on carbon (3)?

Discussion

49.	Draw the possible isomers of the compound with molecular formula C3H6O and also give their electron dot structures.
Answer» Draw the possible isomers of the compound with molecular formula $C_{3} H_{6} O$ and also give their electron dot structures.

Discussion

50.	15. Give me the proof of sandwich theorem
Answer» 15. Give me the proof of sandwich theorem

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The difference in the number of hydrogen atom between gluconic acid and saccharic acid is:

How to write the molecular orbital diagram of carbon 2 molecule?

x^5+x+1

Number of next to next nearest neighbour atoms in fcc

What is macroscopic equilibrium?

42. if each orbitals can holds a maximum of 3 electrons. the no of elements in 2nd periodic table (long form) is ?

what is the equivalent weight of water? how to calculate it?

For the reaction, 2Cl(g) → Cl2(g), what are the signs of ΔH and ΔS ?

64. Equal volumes of molar HCL and H2SO4 are neutralized by dilute NAOH solution and x Kcal and y Kcal of heat is liberated respectively. find relation between x and y.

Hydrogen chloride gas on reaction with ammonia gives __

Which of the following is the correct order of decreasing SN2 reactivity

42 : write all the isomers of C2ABCD??

Copper matte is a molten mixture of

Why atoms are very reactive?

As the temperature is raised from 20∘C to 40∘C. The average kinetic energy of neon atoms changes by a factor of which of the following:

how conductivity is related to cunduction in a elactrochemical cell?

Gold crystallizes in ccp structure. The total number of voids present in 197g of gold will be

Forthe reaction:2A+ B → A2Btherate = k[A][B]2with k= 2.0 × 10−6mol−2L2s−1.Calculate the initial rate of the reaction when [A] = 0.1 mol L−1,[B] = 0.2 mol L−1.Calculate the rate of reaction after [A] is reduced to 0.06 mol L−1.

What should be the condition of ionization energy, atomization enthalpy and hydration enthalpy for higher reduction potential?

Which of the following particle is emitted in the reaction 13Al27+2He4→14P30+....

Q1. What is difference between ionic radius and atomic radius?

What are the characteristics of the following colloids ? Give one example of each. (i) Multimolecular colloids (ii) Lyophobic sols (iii) Emulsions

The enthalpy of hydrogenation of cyclohexene is -119.5 KJ. If resonance energy of benzene is -150.4 KJ its enthapy of hydrogenation will be

if a particle is projected at an angle ϑ with the horizontal then its angle of elevation of particle at maximum height from point of projection is

34. Fe+2 -> Fe+3 + e MnO4- + 5e -> Mn+2 The ratio of stoichiometric coefficients if Fe+2 and MnO4- is ?

chlorophyll the green pigment in plants has the molecular formula C55H72MGN4O5 IF 0.012g of mg is available to a plant for chlorophyll synthesis, how many grams of carbon will be required to completely use up the magnesium

Why nitrogen has more ionization potential than oxyge

A vessel contains CH4 and O2 in 3:1 molar ratio at 16 atm pressure. THen find out the initial composition of the gaseous mixture coming out of a small hole made in the vessel?

Calculate the EMF (inV) of the following electrochemical cell at 25o C:Pt(s)|H2(g, 1 bar)|H+(aq, 0.01 M)||Cu2+(0.1 M)|CuGive your answer upto two decimals only.(Given: Eo for Cu2+|Cu=0.34 V, 2.303RTF=0.059 V)

18 If dx by dt =k (H) +n and rate become 100times when pH changes from 2to 1 the order of reaction is : (a) 1 (b) 2 (c) 3 (d) 0

Describe two important uses of each of the following: (i) caustic soda (ii) sodium carbonate (iii) quicklime.

Order of reactivity of nucleophilic substitution reaction??

Which of the following can change the value of the equilibrium constant for a reaction

160/ Most basic isa)CH3C(NH)(NH2)(b) CH3CH2NH2( c)(CH3)2NH(d) CH3CONH

The no. Of structural isomers possible for C4H8 is

Why does c-cl bond have higher dipole movement than c-f bond

26 Calculate the binary collisions per cc of N2 gas at 1 atm and 25 degree Celsius. Diameter of N2 molecule =3.74angstrom

What is the molality of an aquous solution having 0.9 mole fractionof solvent?

Q. Which one of the following compounds does not react with bromine?a) Ethylamineb) Propanec) Phenold) Chloroform

Lim tend to infinity (1+1/n)en

25. What volume of oxygen is required for complete combustion of 2.2g of propane at NTP

What is alkenynes?

5. AB crystallizes in a body centerd cubic lattice with edge length "a" equal to 387 pm. the distance between two oppositely charged ions in the lattice

The observed dipole moment of HCl is 1.03D. If the inter atomic distance is 1.27∘A, calculate its % ionic character :

C_{}H_5-C≡ CH\xrightarrow[{H_2SO_4}]{Hg^{+2

Why is glycine considered as 'the only amino acid that is optically inactive'?

What is the hybridization on carbon (3)?

Draw the possible isomers of the compound with molecular formula C3H6O and also give their electron dot structures.

15. Give me the proof of sandwich theorem