46295 + Interview Questions in Chemistry

1.	why zinc is not a noble element? what is the criteria to be a noble element
Answer» why zinc is not a noble element? what is the criteria to be a noble element

Discussion

2.	Which one of the following nuclear transformation is (n, p ) type
Answer» Which one of the following nuclear transformation is (n, p ) type

Discussion

3.	Ozonolysis of ClO2 produces an oxide of chlorine. The average oxidation state of chlorine in this oxide is .
Answer» Ozonolysis of $C l O_{2}$ produces an oxide of chlorine. The average oxidation state of chlorine in this oxide is .

Discussion

4.	Oxidation state of H in LiHis
Answer» Oxidation state of $H$ in $L i H$ is

Discussion

5.	he incorrect canonical structure for benzyl anion
Answer» he incorrect canonical structure for benzyl anion

Discussion

6.	The final product formed when ethyl bromide is treated with excess of alcoholic KOH is
Answer» The final product formed when ethyl bromide is treated with excess of alcoholic KOH is

Discussion

7.	What is meant by the degree of freedom?
Answer» What is meant by the degree of freedom?

Discussion

8.	4. Get to Know about the whole information about the concentration of solution
Answer» 4. Get to Know about the whole information about the concentration of solution

Discussion

9.	The percentage of phosphorus in H3PO4 is:
Answer» The percentage of phosphorus in $H_{3} P O_{4}$ is:

Discussion

10.	What Is The SI Unit Of Molarity, Molality And Normality?What Is The Relation Between These Three Concentration Units?
Answer» What Is The SI Unit Of Molarity, Molality And Normality?What Is The Relation Between These Three Concentration Units?

Discussion

11.	Which of the following compound is expected to be aromatic?
Answer» Which of the following compound is expected to be aromatic?

Discussion

12.	The correct IUPAC name of [Co(NH3)2Cl(en)2]Cl2 is
Answer» The correct IUPAC name of $[C o (N H_{3})_{2} C l (e n)_{2}] C l_{2}$ is

Discussion

13.	What is a lattice
Answer» What is a lattice

Discussion

14.	17 Does nitrogen in pyridine and pyrolle have same hybidisation how? Does electron in conjugations take part in hybridisation
Answer» 17 Does nitrogen in pyridine and pyrolle have same hybidisation how? Does electron in conjugations take part in hybridisation

Discussion

15.	I had sent my question why is acetic acid written as CH³COOH and not CH³CO²H. Later I got a reply from sir Abhijeet C.S. that it is because acids end with COOH. Then I want to ask my next question why do acids end with COOH ?
Answer» I had sent my question why is acetic acid written as CH³COOH and not CH³CO²H. Later I got a reply from sir Abhijeet C.S. that it is because acids end with COOH. Then I want to ask my next question why do acids end with COOH ?

Discussion

16.	for N2 +3H2 =2NH3 △ H=-93.6KJ/MOLE. THE CONCENTRATION OF H2 AT EQUILIBRIUM INCREASES IF
Answer» for N2 +3H2 =2NH3 △ H=-93.6KJ/MOLE. THE CONCENTRATION OF H2 AT EQUILIBRIUM INCREASES IF

Discussion

17.	The extent of ionization increases
Answer» The extent of ionization increases

Discussion

18.	. Which of the following is the most reactive towards electrophilic substitution reaction? ( 1)toluene ( 2) 1-ethyl benzene
Answer» . Which of the following is the most reactive towards electrophilic substitution reaction? ( 1)toluene ( 2) 1-ethyl benzene

Discussion

19.	The first member of the ester homologous series is
Answer» The first member of the ester homologous series is

Discussion

20.	In the sugars fructose , lactose and sucrose which carbon should be free to be a reducing sugar?
Answer» In the sugars fructose , lactose and sucrose which carbon should be free to be a reducing sugar?

Discussion

21.	hundred ml of 0.1 M NaCl solution is mixed with hundred ml of 0.2 M agno3 solution find out the mass of agcl precipitate formed which reacting is acting as limiting agent
Answer» hundred ml of 0.1 M NaCl solution is mixed with hundred ml of 0.2 M agno3 solution find out the mass of agcl precipitate formed which reacting is acting as limiting agent

Discussion

22.	Which of the following aqueous solutions should have the highest boiling point ?
Answer» Which of the following aqueous solutions should have the highest boiling point ?

Discussion

23.	The development length (in mm) in compression for a 16 mm diameter deformed bar of grade Fe415 embedded in concrete of grade M25 whose design bond stress is 1.4 N/mm2, is ______515.79
Answer» The development length (in mm) in compression for a 16 mm diameter deformed bar of grade Fe415 embedded in concrete of grade M25 whose design bond stress is 1.4 $N / m m^{2},$ is ______ 515.79

Discussion

24.	How many sulphur atoms will be present in 2 litre of centinormal aq solution of H2SO4 ?
Answer» How many sulphur atoms will be present in 2 litre of centinormal aq solution of H2SO4 ?

Discussion

25.	Which of the following will exhibit maximum ionic conductivity?
Answer» Which of the following will exhibit maximum ionic conductivity?

Discussion

26.	22. (i) Predict the direction of the given reaction Ag2O(s) 2Ag(s) + O2(g) H, S and T are 40.63 kJ mol–1, 108.8 JK–1 mol–1 and 373.4 K respectively. (ii) Define bond enthalpy.
Answer» 22. (i) Predict the direction of the given reaction Ag2O(s) 2Ag(s) + O2(g) H, S and T are 40.63 kJ mol–1, 108.8 JK–1 mol–1 and 373.4 K respectively. (ii) Define bond enthalpy.

Discussion

27.	Which one of the following does not exhibit the phenomenon of muta rotation?
Answer» Which one of the following does not exhibit the phenomenon of muta rotation?

Discussion

28.	Calculate the relative permeability for the given material, if the permeability of the given material is π×10−10.
Answer» Calculate the relative permeability for the given material, if the permeability of the given material is $π \times 10^{- 10}$ .

Discussion

29.	A process has ΔH=200Jmol−1 and ΔS=40JK−1mol−1. The minimum temperature at which the process will be spontaneous is
Answer» A process has $Δ H = 200 J m o l^{- 1}$ and $Δ S = 40 J K^{- 1} m o l^{- 1}$ . The minimum temperature at which the process will be spontaneous is

Discussion

30.	What is the relationship between observed colour of the complex and the wavelength of light absorbed by the complex?
Answer» What is the relationship between observed colour of the complex and the wavelength of light absorbed by the complex?

Discussion

31.	Which one of the following complex species does not obey the EAN rule?
Answer» Which one of the following complex species does not obey the $E A N$ rule?

Discussion

32.	What is the volume of a solution containing 2 g mole of sugathat will give rise to an osmotic pressure of 1 atmosphere aSTP?
Answer» What is the volume of a solution containing 2 g mole of suga that will give rise to an osmotic pressure of 1 atmosphere a STP?

Discussion

33.	If for a reversible reaction the equilibrium constant Kc is 5×1012 at 25∘C, the value of ΔrGo at the same temperature will be:
Answer» If for a reversible reaction the equilibrium constant $K_{c}$ is $5 \times 10^{12}$ at $25^{\circ} C$ , the value of $Δ_{r} G^{o}$ at the same temperature will be:

Discussion

34.	the mass percentage of fe+3 ion present in fe0.93O1.00
Answer» the mass percentage of fe+3 ion present in fe0.93O1.00

Discussion

35.	Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy) is (a) F>Cl>Br>I(b) FBr>I(d) FI
Answer» Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy) is (a) F>Cl>Br>I (b) FBr>I (d) FI

Discussion

36.	The energy of an electron in the first Bohr orbit of He+ is -871.6 × 10-20J. The energy of the electron in the first orbit of hydrogen would be
Answer» The energy of an electron in the first Bohr orbit of $H e^{+}$ is -871.6 × 10-20J. The energy of the electron in the first orbit of hydrogen would be

Discussion

37.	37. AlF3 is soluble in HF only in the presence of KF. It is due to the formation of 1) K3[AlF3H3] 2) K3[AlF6] 3) AlH3 4) K[AlF3H]
Answer» 37. AlF3 is soluble in HF only in the presence of KF. It is due to the formation of 1) K3[AlF3H3] 2) K3[AlF6] 3) AlH3 4) K[AlF3H]

Discussion

38.	Heat of neutralisation of NaOH and HCl is -57.46KJ\:eq^{-1} the heat of ionisation of water is in KJ\:is
Answer» Heat of neutralisation of NaOH and HCl is -57.46KJ\:eq^{-1} the heat of ionisation of water is in KJ\:is

Discussion

39.	Which of the following is the life saving mixture for an asthma patient ?
Answer» Which of the following is the life saving mixture for an asthma patient ?

Discussion

40.	Which of the following curves represent(s) Boyle's law?
Answer» Which of the following curves represent(s) Boyle's law?

Discussion

41.	What is the effect of catalyst on threshold energy?
Answer» What is the effect of catalyst on threshold energy?

Discussion

42.	Which of the following gives the correct ratio between time periods of an electron for each revolution in second and third Bohr's orbits ?
Answer» Which of the following gives the correct ratio between time periods of an electron for each revolution in second and third Bohr's orbits ?

Discussion

43.	Are molar mass, molecular mass and Gram Atomic Mass same?
Answer» Are molar mass, molecular mass and Gram Atomic Mass same?

Discussion

44.	Which of the following element is the most malleable metal?
Answer» Which of the following element is the most malleable metal?

Discussion

45.	which of the following coordination entity form racemic mixture when mixed in equimolar concentration-(1) [Cr(OX)3]^-3 (2) [Co(en)2Cl2]^+ (3) [Co(en)Cl4]^- (4) All
Answer» which of the following coordination entity form racemic mixture when mixed in equimolar concentration-(1) [Cr(OX)3]^-3 (2) [Co(en)2Cl2]^+ (3) [Co(en)Cl4]^- (4) All

Discussion

46.	4. Calculate the no of electrons require to deposit 40.5g of Al?
Answer» 4. Calculate the no of electrons require to deposit 40.5g of Al?

Discussion

47.	Mole fraction of a non-electrolyte in aqueous solution is 0.07. If Kf is 1.86∘mol−1 kg, depression in freezing point, ΔTf is,
Answer» Mole fraction of a non-electrolyte in aqueous solution is 0.07. If $K_{f}$ is ${1.86}^{\circ} m o l^{- 1}$ kg, depression in freezing point, $Δ T_{f}$ is,

Discussion

48.	the pKa of HNO_2 IS 3.37.The pH of HNO_2 in its 0.01 mol/l aqueous solution will be 1.5.37 2.2.69 3.1.69 4.0.69
Answer» the pKa of HNO_2 IS 3.37.The pH of HNO_2 in its 0.01 mol/l aqueous solution will be 1.5.37 2.2.69 3.1.69 4.0.69

Discussion

49.	Major products of the following reaction are:
Answer» Major products of the following reaction are:

Discussion

50.	CH_3-CH=CH_2\overset{NBS}{→ (A)\xrightarrow[{hν}]{HBr/ROOR}(B)\xrightarrow{Mg/△}(C)} end product (C) of the above reaction sequence is (1) Cyclopropane (2) Propane (3) Hexane (4) 2,2-dimethylbu†an e
Answer» CH_3-CH=CH_2\overset{NBS}{→ (A)\xrightarrow[{hν}]{HBr/ROOR}(B)\xrightarrow{Mg/△}(C)} end product (C) of the above reaction sequence is (1) Cyclopropane (2) Propane (3) Hexane (4) 2,2-dimethylbu†an e

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

why zinc is not a noble element? what is the criteria to be a noble element

Which one of the following nuclear transformation is (n, p ) type

Ozonolysis of ClO2 produces an oxide of chlorine. The average oxidation state of chlorine in this oxide is .

Oxidation state of H in LiHis

he incorrect canonical structure for benzyl anion

The final product formed when ethyl bromide is treated with excess of alcoholic KOH is

What is meant by the degree of freedom?

4. Get to Know about the whole information about the concentration of solution

The percentage of phosphorus in H3PO4 is:

What Is The SI Unit Of Molarity, Molality And Normality?What Is The Relation Between These Three Concentration Units?

Which of the following compound is expected to be aromatic?

The correct IUPAC name of [Co(NH3)2Cl(en)2]Cl2 is

What is a lattice

17 Does nitrogen in pyridine and pyrolle have same hybidisation how? Does electron in conjugations take part in hybridisation

I had sent my question why is acetic acid written as CH³COOH and not CH³CO²H. Later I got a reply from sir Abhijeet C.S. that it is because acids end with COOH. Then I want to ask my next question why do acids end with COOH ?

for N2 +3H2 =2NH3 △ H=-93.6KJ/MOLE. THE CONCENTRATION OF H2 AT EQUILIBRIUM INCREASES IF

The extent of ionization increases

. Which of the following is the most reactive towards electrophilic substitution reaction? ( 1)toluene ( 2) 1-ethyl benzene

The first member of the ester homologous series is

In the sugars fructose , lactose and sucrose which carbon should be free to be a reducing sugar?

hundred ml of 0.1 M NaCl solution is mixed with hundred ml of 0.2 M agno3 solution find out the mass of agcl precipitate formed which reacting is acting as limiting agent

Which of the following aqueous solutions should have the highest boiling point ?

The development length (in mm) in compression for a 16 mm diameter deformed bar of grade Fe415 embedded in concrete of grade M25 whose design bond stress is 1.4 N/mm2, is ______515.79

How many sulphur atoms will be present in 2 litre of centinormal aq solution of H2SO4 ?

Which of the following will exhibit maximum ionic conductivity?

22. (i) Predict the direction of the given reaction Ag2O(s) 2Ag(s) + O2(g) H, S and T are 40.63 kJ mol–1, 108.8 JK–1 mol–1 and 373.4 K respectively. (ii) Define bond enthalpy.

Which one of the following does not exhibit the phenomenon of muta rotation?

Calculate the relative permeability for the given material, if the permeability of the given material is π×10−10.

A process has ΔH=200Jmol−1 and ΔS=40JK−1mol−1. The minimum temperature at which the process will be spontaneous is

What is the relationship between observed colour of the complex and the wavelength of light absorbed by the complex?

Which one of the following complex species does not obey the EAN rule?

What is the volume of a solution containing 2 g mole of sugathat will give rise to an osmotic pressure of 1 atmosphere aSTP?

If for a reversible reaction the equilibrium constant Kc is 5×1012 at 25∘C, the value of ΔrGo at the same temperature will be:

the mass percentage of fe+3 ion present in fe0.93O1.00

Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy) is (a) F>Cl>Br>I(b) FBr&gt;I(d) FI

The energy of an electron in the first Bohr orbit of He+ is -871.6 × 10-20J. The energy of the electron in the first orbit of hydrogen would be

37. AlF3 is soluble in HF only in the presence of KF. It is due to the formation of 1) K3[AlF3H3] 2) K3[AlF6] 3) AlH3 4) K[AlF3H]

Heat of neutralisation of NaOH and HCl is -57.46KJ\:eq^{-1} the heat of ionisation of water is in KJ\:is

Which of the following is the life saving mixture for an asthma patient ?

Which of the following curves represent(s) Boyle's law?

What is the effect of catalyst on threshold energy?

Which of the following gives the correct ratio between time periods of an electron for each revolution in second and third Bohr's orbits ?

Are molar mass, molecular mass and Gram Atomic Mass same?

Which of the following element is the most malleable metal?

which of the following coordination entity form racemic mixture when mixed in equimolar concentration-(1) [Cr(OX)3]^-3 (2) [Co(en)2Cl2]^+ (3) [Co(en)Cl4]^- (4) All

4. Calculate the no of electrons require to deposit 40.5g of Al?

Mole fraction of a non-electrolyte in aqueous solution is 0.07. If Kf is 1.86∘mol−1 kg, depression in freezing point, ΔTf is,

the pKa of HNO_2 IS 3.37.The pH of HNO_2 in its 0.01 mol/l aqueous solution will be 1.5.37 2.2.69 3.1.69 4.0.69

Major products of the following reaction are:

CH_3-CH=CH_2\overset{NBS}{→ (A)\xrightarrow[{hν}]{HBr/ROOR}(B)\xrightarrow{Mg/△}(C)} end product (C) of the above reaction sequence is (1) Cyclopropane (2) Propane (3) Hexane (4) 2,2-dimethylbu†an e

Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy) is (a) F>Cl>Br>I(b) FBr>I(d) FI