46295 + Interview Questions in Chemistry

1.	The amount of pollution content added in air in a city due to x diesel vehicles is given by P(x) = 0.005x3 + 0.02x2 + 30x. Find the marginal increase in pollution content when 3 diesel vehicles are added and write which value is indicated in the above questions.
Answer» The amount of pollution content added in air in a city due to x diesel vehicles is given by P(x) = 0.005x³ + 0.02x² + 30x. Find the marginal increase in pollution content when 3 diesel vehicles are added and write which value is indicated in the above questions.

Discussion

2.	Q1)25.4 g of iodine and 14.2 g of chlorine are made to react completely to yield a mixture of ICl and ICl3 . Calculate the ratio of miles of ICl and ICl31. 1:12. 2:13. 3:14. 1:2Q2) Element 'A' reacts with oxygen to form a compound A2O3 . If 0.359 g of A react to give 0.559 g of the compound, atomic weight of A in amu is 1) 51 amu2) 43.08 amu3) 49.7 amu4) 47.9 amu
Answer» Q1)25.4 g of iodine and 14.2 g of chlorine are made to react completely to yield a mixture of ICl and ICl3 . Calculate the ratio of miles of ICl and ICl3 1. 1:1 2. 2:1 3. 3:1 4. 1:2 Q2) Element 'A' reacts with oxygen to form a compound A2O3 . If 0.359 g of A react to give 0.559 g of the compound, atomic weight of A in amu is 1) 51 amu 2) 43.08 amu 3) 49.7 amu 4) 47.9 amu

Discussion

3.	47. What is the difference in the pH of 1/3 and 2/3 stages of neutralization of 0.1 M CH3COOH and 0.1 M NaOH
Answer» 47. What is the difference in the pH of 1/3 and 2/3 stages of neutralization of 0.1 M CH3COOH and 0.1 M NaOH

Discussion

4.	32.an Ion which has 18 electrons in the outermost shell is a)) K (1) positive b)) Cu (1)positive C)) Cs (1)positive D)) both b and c Here (1)positive is charge on atom
Answer» 32.an Ion which has 18 electrons in the outermost shell is a)) K (1) positive b)) Cu (1)positive C)) Cs (1)positive D)) both b and c Here (1)positive is charge on atom

Discussion

5.	Which law is represented by the following expression? For a positive colloid the order of precipitation is : Phosphate ion>sulphate ion >chloride ion.
Answer» Which law is represented by the following expression? For a positive colloid the order of precipitation is : Phosphate ion>sulphate ion >chloride ion.

5.

Which law is represented by the following expression? For a positive colloid the order of precipitation is : Phosphate ion>sulphate ion >chloride ion.

Answer»

Which law is represented by the following expression?

For a positive colloid the order of precipitation is : Phosphate ion>sulphate ion >chloride ion.

Discussion

6.	nt10 grams of ice at -20 deg c is added to 10 grams of water at 50 deg c. The amount of ice and water that are present at eualibrium respectively?n
Answer» nt10 grams of ice at -20 deg c is added to 10 grams of water at 50 deg c. The amount of ice and water that are present at eualibrium respectively?n

Discussion

7.	Number of water hydrated molecules in na2b4o7.10h2o
Answer» Number of water hydrated molecules in na2b4o7.10h2o

Discussion

8.	Equal volumes of 1M Hcl and H2SO4 are neutralised by 1M NaoH solution and x and y KJ/equivalent of heat are liberated, respectively. Which of the following relations is correct?
Answer» Equal volumes of 1M Hcl and $H_{2} S O_{4}$ are neutralised by 1M NaoH solution and x and y KJ/equivalent of heat are liberated, respectively. Which of the following relations is correct?

Discussion

9.	Among the following, select the pair that does notform an ideal solution(1) Carbon tetrachloride and Silicon tetrachloride(2) Chlorobenzene and Bromobenzene(3) Chloroform and Carbon tetrachloride(4) Benzene and Toluene
Answer» Among the following, select the pair that does not form an ideal solution (1) Carbon tetrachloride and Silicon tetrachloride (2) Chlorobenzene and Bromobenzene (3) Chloroform and Carbon tetrachloride (4) Benzene and Toluene

Discussion

10.	O2− is isoelectronic with
Answer» $O^{2 -}$ is isoelectronic with

Discussion

11.	Which one of the following are isoelectronic and isostructural?
Answer» Which one of the following are isoelectronic and isostructural?

Discussion

12.	46.Isn't it true that more the ionic Character More is the lattice energy. If yes, then Shouldn't the lattice energy of RbBr be more than the lattice energy of LiBr ?
Answer» 46.Isn't it true that more the ionic Character More is the lattice energy. If yes, then Shouldn't the lattice energy of RbBr be more than the lattice energy of LiBr ?

Discussion

13.	Calculate the reduction potential for the given half cells at 25oC.Pt(s)\|Fe2+(aq, 0.1 M),Fe3+(aq, 0.01 M);E0Fe3+/Fe2+=+0.77 V
Answer» Calculate the reduction potential for the given half cells at $25^{o} C$ . $P t (s) \| F e^{2 +} (a q, 0.1 M), F e^{3 +} (a q, 0.01 M); E_{F e^{3 +} / F e^{2 +}}^{0} = + 0.77 V$

Discussion

14.	A mixture of two organic chlorine compounds was treated with sodium metal in ether solution. Isobutane was obtained as a product. The two chlorine compounds are[KCET 1988]
Answer» A mixture of two organic chlorine compounds was treated with sodium metal in ether solution. Isobutane was obtained as a product. The two chlorine compounds are [KCET 1988]

14.

A mixture of two organic chlorine compounds was treated with sodium metal in ether solution. Isobutane was obtained as a product. The two chlorine compounds are[KCET 1988]

Answer»

A mixture of two organic chlorine compounds was treated with sodium metal in ether solution. Isobutane was obtained as a product. The two chlorine compounds are

[KCET 1988]

Discussion

15.	if the kinetic energy of a free electron doubles , find the factor by which de broglie wavelength change
Answer» if the kinetic energy of a free electron doubles , find the factor by which de broglie wavelength change

Discussion

16.	limiting conduc†an ces of ca2+ and cl- ions are 119 and 76.3 Scm^2 eq-1 respectively.The molar conductivity of cacl2 ids
Answer» limiting conduc†an ces of ca2+ and cl- ions are 119 and 76.3 Scm^2 eq-1 respectively.The molar conductivity of cacl2 ids

Discussion

17.	5 moles of an ideal monatomic gas undergoes adiabatic free expansion from 10 L, (e4) atm to (e) atm. The change in entropy (in Cal/K) of the system is: [Answer as xyz, in which x = 1 if ΔS= +ve and x = 0 if ΔS= -ve and yz are representing the numerical value of ΔS
Answer» 5 moles of an ideal monatomic gas undergoes adiabatic free expansion from $10 L$ , $(e^{4})$ atm to (e) atm. The change in entropy (in Cal/K) of the system is: [Answer as xyz, in which x = 1 if $Δ S =$ +ve and x = 0 if $Δ S =$ -ve and yz are representing the numerical value of $Δ S$

Discussion

18.	In which one of the following arrangements the given sequence is not strictly according to the properties indicated against it?
Answer» In which one of the following arrangements the given sequence is not strictly according to the properties indicated against it?

Discussion

19.	Question 2Butanone is a four-carbon compound with the functional group:(a) Carboxylic acid(b) Aldehyde(c) Ketone(d) Alcohol
Answer» Question 2 Butanone is a four-carbon compound with the functional group: (a) Carboxylic acid (b) Aldehyde (c) Ketone (d) Alcohol

Discussion

20.	the s†an dard enthalpy of formation ofNH_3 IS -46 KJ MOL^{-1}. IF THE ENTHALPY OF FORMATION OF H_2 FROM ITS ATOMS IS -436KJ MOL^{-1 }AND THAT OF N_2IS -712KJ MOL^{-1} THE AVERAGE BOND ENTHALPY OF N-H BOND IN NH_3 IS
Answer» the s†an dard enthalpy of formation ofNH_3 IS -46 KJ MOL^{-1}. IF THE ENTHALPY OF FORMATION OF H_2 FROM ITS ATOMS IS -436KJ MOL^{-1 }AND THAT OF N_2IS -712KJ MOL^{-1} THE AVERAGE BOND ENTHALPY OF N-H BOND IN NH_3 IS

Discussion

21.	How to balance disproportional redox reations?
Answer» How to balance disproportional redox reations?

Discussion

22.	A gas cylinder of volume 8 lt is filled with a gas at 10 atm and the gas is used to fill baloons of each 4 lt capacity at 1 atm pressure. How many baloons can be filled with the gas
Answer» A gas cylinder of volume 8 lt is filled with a gas at 10 atm and the gas is used to fill baloons of each 4 lt capacity at 1 atm pressure. How many baloons can be filled with the gas

Discussion

23.	Which of the following pairs is a tridentate ligands?
Answer» Which of the following pairs is a tridentate ligands?

Discussion

24.	Is the below conversion correct Conversion of bromobenzene Tu benzoic acid C6h5Br+KCN = C6h5CN C6H5CN + H3O = C6H5COOH
Answer» Is the below conversion correct Conversion of bromobenzene Tu benzoic acid C6h5Br+KCN = C6h5CN C6H5CN + H3O = C6H5COOH

Discussion

25.	Q 11/15 Number of sigma bond in Ethene is
Answer» Q 11/15 Number of sigma bond in Ethene is

Discussion

26.	The calculated spin only magnetic moment of Co2+ ion is
Answer» The calculated spin only magnetic moment of $C o^{2 +}$ ion is

Discussion

27.	27.Which of the following is more stable and why-- K4[Fe(CN)6] or K3[Fe(CN)6}?
Answer» 27.Which of the following is more stable and why-- K4[Fe(CN)6] or K3[Fe(CN)6}?

Discussion

28.	Write a balanced chemical equation between H2 and O2
Answer» Write a balanced chemical equation between $H_{2}$ and $O_{2}$

Discussion

29.	The mass percent of fe3+ ion in fe0. 93ois
Answer» The mass percent of fe3+ ion in fe0. 93ois

Discussion

30.	Which of the following property of water can be used to explain the spherical shape of rain droplets? (a) Viscosity (b) Surface tension (c) Critical phenomena (d) Pressure
Answer» Which of the following property of water can be used to explain the spherical shape of rain droplets? (a) Viscosity (b) Surface tension (c) Critical phenomena (d) Pressure

30.

Which of the following property of water can be used to explain the spherical shape of rain droplets? (a) Viscosity (b) Surface tension (c) Critical phenomena (d) Pressure

Answer»

Which of the following property of water can be used to explain the spherical shape of rain droplets?

(a) Viscosity (b) Surface tension

(c) Critical phenomena (d) Pressure

Discussion

31.	IUPAC name of CH3(CH2)3CH3 is
Answer» IUPAC name of $C H_{3} (C H_{2})_{3} C H_{3}$ is

Discussion

32.	An ideal fluid flows steadily in a pipe of varying cross-section. When the radius of pipe is 3R then velocity of fluid at that point is υ. What is the velocity of fluid at a point where its radius is R?
Answer» An ideal fluid flows steadily in a pipe of varying cross-section. When the radius of pipe is 3R then velocity of fluid at that point is υ. What is the velocity of fluid at a point where its radius is R?

Discussion

33.	What is the difference between Diffusion and Fluidity?
Answer» What is the difference between Diffusion and Fluidity?

Discussion

34.	ntWhen cus04is added to a solution of ammonia whether freezing point is lowered or raised give the valid reason?n
Answer» ntWhen cus04is added to a solution of ammonia whether freezing point is lowered or raised give the valid reason?n

Discussion

35.	The rate of disintegration of a radioactive sample can be increased by1. Chemical reaction 2. Increasing temperature 3. Increasing pressure4. Not possible
Answer» The rate of disintegration of a radioactive sample can be increased by 1. Chemical reaction 2. Increasing temperature 3. Increasing pressure 4. Not possible

Discussion

36.	How to distinguish features of a family
Answer» How to distinguish features of a family

Discussion

37.	Formula for this? amminebromidochloridonitrito-N-platinate(\|\|)
Answer» Formula for this? amminebromidochloridonitrito-N-platinate(\|\|)

Discussion

38.	The reaction 2So2 (g)+o2(g) ->2so3 is carried out in a 1dm^3 Vessel and 2 dm^3 vessel separately .the ratio of reaction velocities will be
Answer» The reaction 2So2 (g)+o2(g) ->2so3 is carried out in a 1dm^3 Vessel and 2 dm^3 vessel separately .the ratio of reaction velocities will be

38.

The reaction 2So2 (g)+o2(g) ->2so3 is carried out in a 1dm^3 Vessel and 2 dm^3 vessel separately .the ratio of reaction velocities will be

Answer»

The reaction 2So2 (g)+o2(g) ->2so3 is carried out in a 1dm^3

Vessel and 2 dm^3 vessel separately .the ratio of reaction velocities will be

Discussion

39.	Resistance of a conductivity cell filled with a solution of an electrolyte of concentration0.1 M is 100 ohm. The conductivity of this solution is 1.29 S m−1. Resistance of the same cell when filled with 0.2 M of the same solution is 520 ohm. The molar conductivity of 0.2M solution of the electrolyte will be:
Answer» Resistance of a conductivity cell filled with a solution of an electrolyte of concentration $0.1 M$ is $100 o h m$ . The conductivity of this solution is $1.29 S m^{- 1}$ . Resistance of the same cell when filled with $0.2 M$ of the same solution is $520 o h m$ . The molar conductivity of $0.2 M$ solution of the electrolyte will be:

Discussion

40.	What is the difference between "bond enthalpy" and "lattice energy"?
Answer» What is the difference between "bond enthalpy" and "lattice energy"?

Discussion

41.	2x +3x = 5 , x=
Answer» 2x +3x = 5 , x=

Discussion

42.	Figure shows the variation of internal energy (U) with the pressure (P) of 2.0 mole gas in cyclic process abcda. The temperature of gas at c and d are 300 and 500 K. The heat absorbed by the gas during the process is given by K(100)R ln 2. Find the value of K.
Answer» Figure shows the variation of internal energy (U) with the pressure (P) of 2.0 mole gas in cyclic process abcda. The temperature of gas at c and d are 300 and 500 K. The heat absorbed by the gas during the process is given by K(100)R ln 2. Find the value of K.

Discussion

43.	The functional group present in a molecule having the formula C12O9 is
Answer» The functional group present in a molecule having the formula C $_{12}$ O $_{9}$ is

Discussion

44.	When MnO2 is fused with KOH, a coloured compound is formed. The product and its colour is
Answer» When $M n O_{2}$ is fused with KOH, a coloured compound is formed. The product and its colour is

Discussion

45.	A hydrocarbon X has molecular formula C5H10. X on treatment with B2H6 in H2O2/NaOH gives an optically active C5H12O which on treatment with CrO3/HCl/pyridine gives C5H10O which is still chiral. Which of the following can be a product of reductive ozonolysis of X?
Answer» A hydrocarbon $X$ has molecular formula $C_{5} H_{10}$ . $X$ on treatment with $B_{2} H_{6}$ in $H_{2} O_{2} / N a O H$ gives an optically active $C_{5} H_{12} O$ which on treatment with $C r O_{3} / H C l$ /pyridine gives $C_{5} H_{10} O$ which is still chiral. Which of the following can be a product of reductive ozonolysis of $X$ ?

Discussion

46.	correct order of base strength of the following is (1)CH3-NH2 (2)(CH3)2NH (3)(CH3)3N
Answer» correct order of base strength of the following is (1)CH3-NH2 (2)(CH3)2NH (3)(CH3)3N

Discussion

47.	The polymerisation of propene to linear polypropene is represented by the reaction: where n has a large integral value. The average enthalpies of bond dissociation for (C=C) and (C−C) at 298 K are +590 and +331 kJmol−1, respectively. The enthalpy of polymerisation is −360 kJmol−1. Find the value of n.
Answer» The polymerisation of propene to linear polypropene is represented by the reaction: where n has a large integral value. The average enthalpies of bond dissociation for $(C = C)$ and $(C - C)$ at 298 K are +590 and $+ 331 {kJmol}^{- 1}$ , respectively. The enthalpy of polymerisation is $- 360 {kJmol}^{- 1}$ . Find the value of n.

Discussion

48.	Do co ordination compounds follow octet rule ?explian its stability
Answer» Do co ordination compounds follow octet rule ?explian its stability

Discussion

49.	71.The energy of an electron in the first orbit of H atom is??
Answer» 71.The energy of an electron in the first orbit of H atom is??

Discussion

50.	Write the IUPAC name of the following compound : CH3−CH\|Br−CH2−CH\|Cl−CH3
Answer» Write the IUPAC name of the following compound : $C H_{3} - C H \| B r - C H_{2} - C H \| C l - C H_{3}$

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The amount of pollution content added in air in a city due to x diesel vehicles is given by P(x) = 0.005x3 + 0.02x2 + 30x. Find the marginal increase in pollution content when 3 diesel vehicles are added and write which value is indicated in the above questions.

47. What is the difference in the pH of 1/3 and 2/3 stages of neutralization of 0.1 M CH3COOH and 0.1 M NaOH

32.an Ion which has 18 electrons in the outermost shell is a)) K (1) positive b)) Cu (1)positive C)) Cs (1)positive D)) both b and c Here (1)positive is charge on atom

Which law is represented by the following expression? For a positive colloid the order of precipitation is : Phosphate ion&gt;sulphate ion &gt;chloride ion.

nt10 grams of ice at -20 deg c is added to 10 grams of water at 50 deg c. The amount of ice and water that are present at eualibrium respectively?n

Number of water hydrated molecules in na2b4o7.10h2o

Equal volumes of 1M Hcl and H2SO4 are neutralised by 1M NaoH solution and x and y KJ/equivalent of heat are liberated, respectively. Which of the following relations is correct?

Among the following, select the pair that does notform an ideal solution(1) Carbon tetrachloride and Silicon tetrachloride(2) Chlorobenzene and Bromobenzene(3) Chloroform and Carbon tetrachloride(4) Benzene and Toluene

O2− is isoelectronic with

Which one of the following are isoelectronic and isostructural?

46.Isn't it true that more the ionic Character More is the lattice energy. If yes, then Shouldn't the lattice energy of RbBr be more than the lattice energy of LiBr ?

Calculate the reduction potential for the given half cells at 25oC.Pt(s)|Fe2+(aq, 0.1 M),Fe3+(aq, 0.01 M);E0Fe3+/Fe2+=+0.77 V

A mixture of two organic chlorine compounds was treated with sodium metal in ether solution. Isobutane was obtained as a product. The two chlorine compounds are[KCET 1988]

if the kinetic energy of a free electron doubles , find the factor by which de broglie wavelength change

limiting conduc†an ces of ca2+ and cl- ions are 119 and 76.3 Scm^2 eq-1 respectively.The molar conductivity of cacl2 ids

5 moles of an ideal monatomic gas undergoes adiabatic free expansion from 10 L, (e4) atm to (e) atm. The change in entropy (in Cal/K) of the system is: [Answer as xyz, in which x = 1 if ΔS= +ve and x = 0 if ΔS= -ve and yz are representing the numerical value of ΔS

In which one of the following arrangements the given sequence is not strictly according to the properties indicated against it?

Question 2Butanone is a four-carbon compound with the functional group:(a) Carboxylic acid(b) Aldehyde(c) Ketone(d) Alcohol

the s†an dard enthalpy of formation ofNH_3 IS -46 KJ MOL^{-1}. IF THE ENTHALPY OF FORMATION OF H_2 FROM ITS ATOMS IS -436KJ MOL^{-1 }AND THAT OF N_2IS -712KJ MOL^{-1} THE AVERAGE BOND ENTHALPY OF N-H BOND IN NH_3 IS

How to balance disproportional redox reations?

A gas cylinder of volume 8 lt is filled with a gas at 10 atm and the gas is used to fill baloons of each 4 lt capacity at 1 atm pressure. How many baloons can be filled with the gas

Which of the following pairs is a tridentate ligands?

Is the below conversion correct Conversion of bromobenzene Tu benzoic acid C6h5Br+KCN = C6h5CN C6H5CN + H3O = C6H5COOH

Q 11/15 Number of sigma bond in Ethene is

The calculated spin only magnetic moment of Co2+ ion is

27.Which of the following is more stable and why-- K4[Fe(CN)6] or K3[Fe(CN)6}?

Write a balanced chemical equation between H2 and O2

The mass percent of fe3+ ion in fe0. 93ois

Which of the following property of water can be used to explain the spherical shape of rain droplets? (a) Viscosity (b) Surface tension (c) Critical phenomena (d) Pressure

IUPAC name of CH3(CH2)3CH3 is

An ideal fluid flows steadily in a pipe of varying cross-section. When the radius of pipe is 3R then velocity of fluid at that point is υ. What is the velocity of fluid at a point where its radius is R?

What is the difference between Diffusion and Fluidity?

ntWhen cus04is added to a solution of ammonia whether freezing point is lowered or raised give the valid reason?n

The rate of disintegration of a radioactive sample can be increased by1. Chemical reaction 2. Increasing temperature 3. Increasing pressure4. Not possible

How to distinguish features of a family

Formula for this? amminebromidochloridonitrito-N-platinate(||)

The reaction 2So2 (g)+o2(g) -&gt;2so3 is carried out in a 1dm^3 Vessel and 2 dm^3 vessel separately .the ratio of reaction velocities will be

What is the difference between "bond enthalpy" and "lattice energy"?

2x +3x = 5 , x=

Figure shows the variation of internal energy (U) with the pressure (P) of 2.0 mole gas in cyclic process abcda. The temperature of gas at c and d are 300 and 500 K. The heat absorbed by the gas during the process is given by K(100)R ln 2. Find the value of K.

The functional group present in a molecule having the formula C12O9 is

When MnO2 is fused with KOH, a coloured compound is formed. The product and its colour is

A hydrocarbon X has molecular formula C5H10. X on treatment with B2H6 in H2O2/NaOH gives an optically active C5H12O which on treatment with CrO3/HCl/pyridine gives C5H10O which is still chiral. Which of the following can be a product of reductive ozonolysis of X?

correct order of base strength of the following is (1)CH3-NH2 (2)(CH3)2NH (3)(CH3)3N

Do co ordination compounds follow octet rule ?explian its stability

71.The energy of an electron in the first orbit of H atom is??

Write the IUPAC name of the following compound : CH3−CH|Br−CH2−CH|Cl−CH3

Which law is represented by the following expression? For a positive colloid the order of precipitation is : Phosphate ion>sulphate ion >chloride ion.

The reaction 2So2 (g)+o2(g) ->2so3 is carried out in a 1dm^3 Vessel and 2 dm^3 vessel separately .the ratio of reaction velocities will be