46295 + Interview Questions in Chemistry

1.	40. How to find a cosucated acid base? What is equilibrium of ionic compound o water?
Answer» 40. How to find a cosucated acid base? What is equilibrium of ionic compound o water?

Discussion

2.	Which among the following is adsorbed to maximum extent on activated charcoal?
Answer» Which among the following is adsorbed to maximum extent on activated charcoal?

Discussion

3.	What is 5 litres of a solution in m3 ?
Answer» What is 5 litres of a solution in $m^{3}$ ?

Discussion

4.	How alky group increases the polarity of C-X bond in alkyl halide?
Answer» How alky group increases the polarity of C-X bond in alkyl halide?

Discussion

5.	48 How many Number of molecules of water is present in 18 ml of water
Answer» 48 How many Number of molecules of water is present in 18 ml of water

Discussion

6.	47.Why is NH3 a base when it lacks OH ions?
Answer» 47.Why is NH3 a base when it lacks OH ions?

Discussion

7.	Which of the following is a pair of isotones?
Answer» Which of the following is a pair of isotones?

Discussion

8.	90 How to measure degree of unsaturation for any compound. As it is 0 for alkane and 1 for alkene ? Explain
Answer» 90 How to measure degree of unsaturation for any compound. As it is 0 for alkane and 1 for alkene ? Explain

Discussion

9.	90 Calculate the bond order of CN- ion
Answer» 90 Calculate the bond order of CN- ion

Discussion

10.	Teflon is a polymer obtained from
Answer» Teflon is a polymer obtained from

Discussion

11.	Element A and B crystallize in a cubic structure where atoms A are at corners of cube and B atoms are at the alternate faces. What is the formula of compound ?
Answer» Element A and B crystallize in a cubic structure where atoms A are at corners of cube and B atoms are at the alternate faces. What is the formula of compound ?

Discussion

12.	In the contact process, SO3 is dissolved in concentrated Sulphuric acid to produce:
Answer» In the contact process, $S O_{3}$ is dissolved in concentrated Sulphuric acid to produce:

Discussion

13.	Is PH3 a +m group or -m group? Also give the stability order of +m group and -m group
Answer» Is PH₃a +m group or -m group? Also give the stability order of +m group and -m group

Discussion

14.	liquid is in equilibrium with its vapour in a sealed container at a fixed temperature. The volume of the container is suddenly increased. b)How do rates of evaporation and condensation change initially?
Answer» liquid is in equilibrium with its vapour in a sealed container at a fixed temperature. The volume of the container is suddenly increased. b)How do rates of evaporation and condensation change initially?

Discussion

15.	In the crystal of CsCl, the nearest neighbours of each Cs ion are [MP PET 1993]
Answer» In the crystal of CsCl, the nearest neighbours of each Cs ion are [MP PET 1993]

15.

In the crystal of CsCl, the nearest neighbours of each Cs ion are [MP PET 1993]

Answer»

In the crystal of CsCl, the nearest neighbours of each Cs ion are

[MP PET 1993]

Discussion

16.	Which of the following is true for inductive effect?
Answer» Which of the following is true for inductive effect?

Discussion

17.	Given that A(s) ----- A(l), deltaH= x, A(l) ----- A(g) -yheat of sublimation of A will be ?1) x+ y2) - (x+y)3) x-ykindly explain
Answer» Given that A(s) ----- A(l), deltaH= x, A(l) ----- A(g) -y heat of sublimation of A will be ? 1) x+ y 2) - (x+y) 3) x-y kindly explain

Discussion

18.	Which of the following elements do not react directly with nitrogen to form nitride?
Answer» Which of the following elements do not react directly with nitrogen to form nitride?

Discussion

19.	Which of the following alkyl halide is more reactive towards E1 reaction?
Answer» Which of the following alkyl halide is more reactive towards $E 1$ reaction?

Discussion

20.	Hybridisation of Boron in B2H6 is:
Answer» Hybridisation of Boron in $B_{2} H_{6}$ is:

Discussion

21.	The base of a rec†an gular glass slab has thickness 10cm and refractive index 1.5 .A coloured spot inside the glass slab at a dis†an ce of 8cm from the glass slab base. Determine the position of the image formed by the mirror as observed from the topl
Answer» The base of a rec†an gular glass slab has thickness 10cm and refractive index 1.5 .A coloured spot inside the glass slab at a dis†an ce of 8cm from the glass slab base. Determine the position of the image formed by the mirror as observed from the topl

Discussion

22.	Which of the following reactions is shown by alkynes?
Answer» Which of the following reactions is shown by alkynes?

Discussion

23.	if molality for h2so4 is 5 then find molarity and normality of the solution here density of solution is 1.25g/ml
Answer» if molality for h2so4 is 5 then find molarity and normality of the solution here density of solution is 1.25g/ml

Discussion

24.	How to find Mili Equavelant Weight of SO3 (sulphur trioxide)
Answer» How to find Mili Equavelant Weight of SO3 (sulphur trioxide)

Discussion

25.	if the ratio of radius of cation and radius of anion is less than 0.155 then in which void will these cations accommodate?
Answer» if the ratio of radius of cation and radius of anion is less than 0.155 then in which void will these cations accommodate?

Discussion

26.	A sample of MgCO3 contains 3.01 into 10 raise to the power 23 Mg 2+ions and 3.01 into 10 raise to the power 23 (CO3) 2- ions . The mass of the sample is
Answer» A sample of MgCO3 contains 3.01 into 10 raise to the power 23 Mg 2+ions and 3.01 into 10 raise to the power 23 (CO3) 2- ions . The mass of the sample is

Discussion

27.	29.2% (w/w) HCl stock solution has a density of 1.25 gmL−1. The molecular weight of HCl is 36.5 g mol−1. The volume (mL) of stock solution required to prepare a 200 mL solution of 0.4 M HCl is :
Answer» $29.2 %$ (w/w) $H C l$ stock solution has a density of $1.25 {gmL}^{- 1}$ . The molecular weight of $H C l$ is $36.5 {g mol}^{- 1}$ . The volume (mL) of stock solution required to prepare a $200 mL$ solution of $0.4 M$ $H C l$ is :

Discussion

28.	Sulphur dioxide is SO_2. Ifoxygen atom forms two covalent bonds, how many bonds does sulphur form in sulphur dioxide.
Answer» Sulphur dioxide is SO_2. Ifoxygen atom forms two covalent bonds, how many bonds does sulphur form in sulphur dioxide.

Discussion

29.	C2H5−CH=CH2Br2−−−→CCl4Aalc. KOH−−−−−−→(excess)BA and B in the above reaction sequence are:
Answer» $C_{2} H_{5} - C H = C H_{2} B r_{2} - -- \to C C l_{4} A a l c . K O H - ----- \to (e x c e s s) B$ A and B in the above reaction sequence are:

Discussion

30.	Replacement of hydrogen of NH2 group in amines is done with:
Answer» Replacement of hydrogen of $N H_{2}$ group in amines is done with:

Discussion

31.	What type of questions are asked from environmental chemistry?
Answer» What type of questions are asked from environmental chemistry?

Discussion

32.	the approximate production of sodium per month is 42410^6 g ,while that of methyl alcohol is 32010^6 g. which is produced more in term of molecules?
Answer» the approximate production of sodium per month is 42410^6 g ,while that of methyl alcohol is 32010^6 g. which is produced more in term of molecules?

Discussion

33.	The following equilibrium constants were determined at 1120 K:2CO(g)⇌C(s)+CO2(g); Kp1=10−14 atm−1CO(g)+Cl2(g)⇌COCl2(g);Kp2=6×10−3 atm−1What is the equilibrium constant KP for the following reaction at same temperature?C(s)+CO2(g)+2Cl2(g)⇌2COCl2(g)
Answer» The following equilibrium constants were determined at $1120 K$ : $2 C O (g) ⇌ C (s) + C O_{2} (g); K_{p 1} = 10^{- 14} {atm}^{- 1}$ $C O (g) + C l_{2} (g) ⇌ C O C l_{2} (g); K_{p 2} = 6 \times 10^{- 3} {atm}^{- 1}$ What is the equilibrium constant $K_{P}$ for the following reaction at same temperature? $C (s) + C O_{2} (g) + 2 C l_{2} (g) ⇌ 2 C O C l_{2} (g)$

Discussion

34.	Product formed when furran under goes reimer teimann reaction?
Answer» Product formed when furran under goes reimer teimann reaction?

Discussion

35.	Decreasing order of reactivity of HX in the reaction [RPET 2000; AIIMS 1983; MP PET 1996]
Answer» Decreasing order of reactivity of HX in the reaction [RPET 2000; AIIMS 1983; MP PET 1996]

35.

Decreasing order of reactivity of HX in the reaction [RPET 2000; AIIMS 1983; MP PET 1996]

Answer»

Decreasing order of reactivity of HX in the reaction

[RPET 2000; AIIMS 1983; MP PET 1996]

Discussion

36.	Which is the correct thermal stability order for H2E(E=O,S,Se,Te and Po) ?
Answer» Which is the correct thermal stability order for $H_{2} E$ $(E = O, S, S e, T e a n d P o)$ ?

Discussion

37.	How to identify whether the molecule is FCC type OR BCC type
Answer» How to identify whether the molecule is FCC type OR BCC type

Discussion

38.	Q28) How much water should be added to 200 с.c. ofsemi normal solution of NaOH to make it exactly decinormal? [ AFMC 1983]а) 200 с.с.b) 400 cc.c) 800 с.с.d) 600 с.с.
Answer» Q28) How much water should be added to 200 с.c. of semi normal solution of NaOH to make it exactly deci normal? [ AFMC 1983] а) 200 с.с. b) 400 cc. c) 800 с.с. d) 600 с.с.

Discussion

39.	Which of the following represent the units of rate of reaction?
Answer» Which of the following represent the units of rate of reaction?

Discussion

40.	Among the following the maximum covalent character is shown by the compound A) FeCl2. B) SnCl2. C) AlCl3. D) MgCl2. Explain in detail.
Answer» Among the following the maximum covalent character is shown by the compound A) FeCl₂. B) SnCl_2.C) AlCl₃. D) MgCl_2. Explain in detail.

40.

Among the following the maximum covalent character is shown by the compound A) FeCl2. B) SnCl2. C) AlCl3. D) MgCl2. Explain in detail.

Answer»

Among the following the maximum covalent character is shown by the compound

A) FeCl₂. B) SnCl_2.C) AlCl₃. D) MgCl_2.

Explain in detail.

Discussion

41.	A gas has a vapour density of 11.2. The volume occupied by 1 g of the gas at STP is:
Answer» A gas has a vapour density of $11.2$ . The volume occupied by $1 g$ of the gas at STP is:

Discussion

42.	mole fraction of I2 in C6H6 is 0.2 .molality of C6H6 is?
Answer» mole fraction of I2 in C6H6 is 0.2 .molality of C6H6 is?

Discussion

43.	The oxidation number of Fe in K4Fe(CN)6 is
Answer» The oxidation number of Fe in K₄Fe(CN)₆ is

Discussion

44.	What is meant by polymorphism shown by chalcogens
Answer» What is meant by polymorphism shown by chalcogens

Discussion

45.	Q5) in a crystalline solid , anions 'C' are arranged in cubic close packing cations 'A' occupy 50%of tetrahedral voids and cations 'B' occupy 50% of octahedral voids .what is the formula of the solid
Answer» Q5) in a crystalline solid , anions 'C' are arranged in cubic close packing cations 'A' occupy 50%of tetrahedral voids and cations 'B' occupy 50% of octahedral voids .what is the formula of the solid

Discussion

46.	9.does helium and neon forms catharats
Answer» 9.does helium and neon forms catharats

Discussion

47.	In Molecular Orbital Theory, which has more energy: π2p(x,y) orbital or σ2p(z) orbital?
Answer» In Molecular Orbital Theory, which has more energy: π2p(x,y) orbital or σ2p(z) orbital?

Discussion

48.	The plot of PT vs XA at constant temperature in the pressure composition diagram is PT→Total pressure XA→Mole fraction of A in liquid phase
Answer» The plot of $P_{T}$ vs $X_{A}$ at constant temperature in the pressure composition diagram is $P_{T} \to Total pressure$ $XA→Mole fraction of A in liquid phase$

Discussion

49.	A certain current liberated 0.504 gm of hydrogen in 2 hours. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution
Answer» A certain current liberated 0.504 gm of hydrogen in 2 hours. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution

49.

A certain current liberated 0.504 gm of hydrogen in 2 hours. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution

Answer»

A certain current liberated 0.504 gm of hydrogen in 2 hours. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution

Discussion

50.	56.What happens when?Give balanced chemical equations. a)Acidifed solution of KmnO4 reacts with H2O2 b)O3 reacts with phosphorus.
Answer» 56.What happens when?Give balanced chemical equations. a)Acidifed solution of KmnO4 reacts with H2O2 b)O3 reacts with phosphorus.

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

40. How to find a cosucated acid base? What is equilibrium of ionic compound o water?

Which among the following is adsorbed to maximum extent on activated charcoal?

What is 5 litres of a solution in m3 ?

How alky group increases the polarity of C-X bond in alkyl halide?

48 How many Number of molecules of water is present in 18 ml of water

47.Why is NH3 a base when it lacks OH ions?

Which of the following is a pair of isotones?

90 How to measure degree of unsaturation for any compound. As it is 0 for alkane and 1 for alkene ? Explain

90 Calculate the bond order of CN- ion

Teflon is a polymer obtained from

Element A and B crystallize in a cubic structure where atoms A are at corners of cube and B atoms are at the alternate faces. What is the formula of compound ?

In the contact process, SO3 is dissolved in concentrated Sulphuric acid to produce:

Is PH​​​​​3 a +m group or -m group? Also give the stability order of +m group and -m group

liquid is in equilibrium with its vapour in a sealed container at a fixed temperature. The volume of the container is suddenly increased. b)How do rates of evaporation and condensation change initially?

In the crystal of CsCl, the nearest neighbours of each Cs ion are [MP PET 1993]

Which of the following is true for inductive effect?

Given that A(s) ----- A(l), deltaH= x, A(l) ----- A(g) -yheat of sublimation of A will be ?1) x+ y2) - (x+y)3) x-ykindly explain

Which of the following elements do not react directly with nitrogen to form nitride?

Which of the following alkyl halide is more reactive towards E1 reaction?

Hybridisation of Boron in B2H6 is:

The base of a rec†an gular glass slab has thickness 10cm and refractive index 1.5 .A coloured spot inside the glass slab at a dis†an ce of 8cm from the glass slab base. Determine the position of the image formed by the mirror as observed from the topl

Which of the following reactions is shown by alkynes?

if molality for h2so4 is 5 then find molarity and normality of the solution here density of solution is 1.25g/ml

How to find Mili Equavelant Weight of SO3 (sulphur trioxide)

if the ratio of radius of cation and radius of anion is less than 0.155 then in which void will these cations accommodate?

A sample of MgCO3 contains 3.01 into 10 raise to the power 23 Mg 2+ions and 3.01 into 10 raise to the power 23 (CO3) 2- ions . The mass of the sample is

29.2% (w/w) HCl stock solution has a density of 1.25 gmL−1. The molecular weight of HCl is 36.5 g mol−1. The volume (mL) of stock solution required to prepare a 200 mL solution of 0.4 M HCl is :

Sulphur dioxide is SO_2. Ifoxygen atom forms two covalent bonds, how many bonds does sulphur form in sulphur dioxide.

C2H5−CH=CH2Br2−−−→CCl4Aalc. KOH−−−−−−→(excess)BA and B in the above reaction sequence are:

Replacement of hydrogen of NH2 group in amines is done with:

What type of questions are asked from environmental chemistry?

the approximate production of sodium per month is 424*10^6 g ,while that of methyl alcohol is 320*10^6 g. which is produced more in term of molecules?

The following equilibrium constants were determined at 1120 K:2CO(g)⇌C(s)+CO2(g); Kp1=10−14 atm−1CO(g)+Cl2(g)⇌COCl2(g);Kp2=6×10−3 atm−1What is the equilibrium constant KP for the following reaction at same temperature?C(s)+CO2(g)+2Cl2(g)⇌2COCl2(g)

Product formed when furran under goes reimer teimann reaction?

Decreasing order of reactivity of HX in the reaction [RPET 2000; AIIMS 1983; MP PET 1996]

Which is the correct thermal stability order for H2E(E=O,S,Se,Te and Po) ?

How to identify whether the molecule is FCC type OR BCC type

Q28) How much water should be added to 200 с.c. ofsemi normal solution of NaOH to make it exactly decinormal? [ AFMC 1983]а) 200 с.с.b) 400 cc.c) 800 с.с.d) 600 с.с.

Which of the following represent the units of rate of reaction?

Among the following the maximum covalent character is shown by the compound A) FeCl2. B) SnCl2. C) AlCl3. D) MgCl2. Explain in detail.

A gas has a vapour density of 11.2. The volume occupied by 1 g of the gas at STP is:

mole fraction of I2 in C6H6 is 0.2 .molality of C6H6 is?

The oxidation number of Fe in K4Fe(CN)6 is

What is meant by polymorphism shown by chalcogens

Q5) in a crystalline solid , anions 'C' are arranged in cubic close packing cations 'A' occupy 50%of tetrahedral voids and cations 'B' occupy 50% of octahedral voids .what is the formula of the solid

9.does helium and neon forms catharats

In Molecular Orbital Theory, which has more energy: π2p(x,y) orbital or σ2p(z) orbital?

The plot of PT vs XA at constant temperature in the pressure composition diagram is PT→Total pressure XA→Mole fraction of A in liquid phase

A certain current liberated 0.504 gm of hydrogen in 2 hours. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution

56.What happens when?Give balanced chemical equations. a)Acidifed solution of KmnO4 reacts with H2O2 b)O3 reacts with phosphorus.

Is PH3 a +m group or -m group? Also give the stability order of +m group and -m group

the approximate production of sodium per month is 42410^6 g ,while that of methyl alcohol is 32010^6 g. which is produced more in term of molecules?