46295 + Interview Questions in Chemistry

1.	Ethene when treated with Br2 in the presence of CCl4 which compound is formed
Answer» Ethene when treated with Br₂ in the presence of CCl₄which compound is formed

Discussion

2.	Which among the following compounds on reaction with methyl magnesium bromide followed by hydrolysis with water will give 2-methyl-2-propanol?
Answer» Which among the following compounds on reaction with methyl magnesium bromide followed by hydrolysis with water will give 2-methyl-2-propanol?

Discussion

3.	One mole of an ideal gas (Cv=20 JK−1mol−1) initially at STP is heated at constant volume to twice the initial temperature. For the process, work done (w) and q will be :
Answer» One mole of an ideal gas $(C_{v} = 20 J K^{- 1} m o l^{- 1})$ initially at STP is heated at constant volume to twice the initial temperature. For the process, work done ( $w$ ) and $q$ will be :

Discussion

4.	The volume (in mL) of 0.1 M AgNO3 required for complete precipitation of chloride ions present in 30 mLof 0.01 M solution of [Cr(H2O)5Cl]Cl2 as silver chloride is close to
Answer» The volume (in mL) of 0.1 M $A g N O_{3}$ required for complete precipitation of chloride ions present in 30 mLof 0.01 M solution of $[C r (H_{2} O)_{5} C l] C l_{2}$ as silver chloride is close to

Discussion

5.	Most unstable metal carbonyl among the following is 1.Ni(CO)4 2.V(CO)6 3.Fe(CO)5 4.Cr(CO)
Answer» Most unstable metal carbonyl among the following is 1.Ni(CO)4 2.V(CO)6 3.Fe(CO)5 4.Cr(CO)

Discussion

6.	Two bodies A and B of same mass,area and surface finsih with specific heats Sa and Sb are allowed to cool for given temperature range. Temperature varies with time as
Answer» Two bodies A and B of same ma ss,area and surface finsih with specific heats Sa and Sb are allowed to cool for given temperature range . Temperature varies with time as

Discussion

7.	Name the type of hybridization of nitrogein N2H2 and N2H4
Answer» Name the type of hybridization of nitrogein N2H2 and N2H4

Discussion

8.	30. Two liquids having vapour pressure P^° 1 and P^° 2 in pure state in the ratio 2:1 are mixed in the molar ratio of 1:2.The ratio of their moles in the vapour state would be 1-1:1 2-1:2 3_2:1 4_3:2
Answer» 30. Two liquids having vapour pressure P^° 1 and P^° 2 in pure state in the ratio 2:1 are mixed in the molar ratio of 1:2.The ratio of their moles in the vapour state would be 1-1:1 2-1:2 3_2:1 4_3:2

Discussion

9.	A compound contains equal masses of the elements A, B & C. If the gram atomic masses of A, B & C are 60 g, 20 g & 40 g respectively. Determine the molecular formula of the compound if the molecular mass is 720 g.
Answer» A compound contains equal masses of the elements A, B & C. If the gram atomic masses of A, B & C are 60 g, 20 g & 40 g respectively. Determine the molecular formula of the compound if the molecular mass is 720 g.

Discussion

10.	22. If the ionisation potential of an atom .is 20V its 1st excitation potential will b
Answer» 22. If the ionisation potential of an atom .is 20V its 1st excitation potential will b

Discussion

11.	3.0×10−3 kg of acetic acid is added to 500 mL of water. 23% of acetic acid is dissociated. If Kf and density of water are 1.86Kkgmol−1 and 0.997 g/mL respectively. The depression in freezing point of acetic acid is :
Answer» $3.0 \times 10^{- 3} k g$ of acetic acid is added to 500 mL of water. $23 %$ of acetic acid is dissociated. If Kf and density of water are $1.86 K k g m o l^{- 1}$ and 0.997 g/mL respectively. The depression in freezing point of acetic acid is :

Discussion

12.	49. 0.177g of a metal produces with dil HCl 177ml of dry hydrogen gas at 766 mm and 12 degree Celsius. The equivalent weight of metal is? (1) 17.7 (2) 11.6 (3) 23 (4) 12
Answer» 49. 0.177g of a metal produces with dil HCl 177ml of dry hydrogen gas at 766 mm and 12 degree Celsius. The equivalent weight of metal is? (1) 17.7 (2) 11.6 (3) 23 (4) 12

Discussion

13.	Complétez les phrases selon le sens.(en verre, en cristal, en fer, en marbre, en soie, en or, en coton,en laine, en plastique, en bois, en fourrure.)
Answer» Complétez les phrases selon le sens. (en verre, en cristal, en fer, en marbre, en soie, en or, en coton, en laine, en plastique, en bois, en fourrure.)

Discussion

14.	Q14/15 For the reaction A38 2c+D, initial mole of A is twicethat of B. If at equilibrium moles of B and C are equal, percentof B reacted is
Answer» Q14/15 For the reaction A38 2c+D, initial mole of A is twicethat of B. If at equilibrium moles of B and C are equal, percentof B reacted is

Discussion

15.	Which of the following is evolved/deposited at anode when electrolysis of molten NaCl using inert platinum electrodes is carried out?
Answer» Which of the following is evolved/deposited at anode when electrolysis of molten $N a C l$ using inert platinum electrodes is carried out?

Discussion

16.	A sample of a pure compound contains 9.81 gm of Zn, 1.8×1023 atoms of chromium and 0.60 mole of oxygen atoms. What is its simplest formula?
Answer» A sample of a pure compound contains $9.81 gm$ of $Z n$ , $1.8 \times 10^{23}$ atoms of chromium and $0.60$ mole of oxygen atoms. What is its simplest formula?

Discussion

17.	What is common in all the images given below?
Answer» What is common in all the images given below?

Discussion

18.	Which of the following possess two lone pair of electrons on the central atom and square planar in shape? (I) SF4 (II) XeO4 (III) XeF4 (IV) ICl−4
Answer» Which of the following possess two lone pair of electrons on the central atom and square planar in shape? (I) $S F_{4}$ (II) $X e O_{4}$ (III) $X e F_{4}$ (IV) $I C l_{4}^{-}$

18.

Which of the following possess two lone pair of electrons on the central atom and square planar in shape? (I) SF4 (II) XeO4 (III) XeF4 (IV) ICl−4

Answer»

Which of the following possess two lone pair of electrons on the central atom and square planar in shape?

(I) $S F_{4}$ (II) $X e O_{4}$ (III) $X e F_{4}$ (IV) $I C l_{4}^{-}$

Discussion

19.	How to determine charge on cationic coordination sphere and anionic coordination sphere in coordination coordination isomerism
Answer» How to determine charge on cationic coordination sphere and anionic coordination sphere in coordination coordination isomerism

Discussion

20.	5% (w/v) solution of glucose is isotonic with 2% (w/v) solution of a non-volatile non electrolyte substance at same ‘T’. The molecular mass of the substance will be:[0.77 Mark]
Answer» $5 % (w / v)$ solution of glucose is isotonic with $2 % (w / v)$ solution of a non-volatile non electrolyte substance at same ‘T’. The molecular mass of the substance will be: [0.77 Mark]

Discussion

21.	Why electron revolve around the nucleus without emitting the radiant energy
Answer» Why electron revolve around the nucleus without emitting the radiant energy

Discussion

22.	What is mass of sodium acetate required to maken200 ml of 0.245 molar aqueous solution
Answer» What is mass of sodium acetate required to maken200 ml of 0.245 molar aqueous solution

Discussion

23.	For a complex reaction ......... . (a) order of overall reaction is same as molecularity of the slowest step (b) order of overall reaction is less than the molecularity of the slowest step (c) order of overall reaction is greater than molecularity of the slowest step (d) molecularity of the slowest step is never zero or non-integer
Answer» For a complex reaction ......... . (a) order of overall reaction is same as molecularity of the slowest step (b) order of overall reaction is less than the molecularity of the slowest step (c) order of overall reaction is greater than molecularity of the slowest step (d) molecularity of the slowest step is never zero or non-integer

23.

For a complex reaction ......... . (a) order of overall reaction is same as molecularity of the slowest step (b) order of overall reaction is less than the molecularity of the slowest step (c) order of overall reaction is greater than molecularity of the slowest step (d) molecularity of the slowest step is never zero or non-integer

Answer»

For a complex reaction ......... .

(a) order of overall reaction is same as molecularity of the slowest step
(b) order of overall reaction is less than the molecularity of the slowest step
(c) order of overall reaction is greater than molecularity of the slowest step
(d) molecularity of the slowest step is never zero or non-integer

Discussion

24.	How to gind oxidization state of any element in redox reaction like mno^4
Answer» How to gind oxidization state of any element in redox reaction like mno^4

Discussion

25.	40. Velocity of electron in 3rd shell of Li+2 is (C- velocity of light)
Answer» 40. Velocity of electron in 3rd shell of Li+2 is (C- velocity of light)

Discussion

26.	Diborane on hydrolysis gives
Answer» Diborane on hydrolysis gives

Discussion

27.	Which of the following statements are in accordance with the Arrhenius equation? (a) Rate of a reaction increases with increase in temperature (b) Rate of a reaction increases with a decrease in activation energy (c) Rate constant decreases exponentially with an increase in temperature (d) Rate of reaction decreases with a decrease in activation energy
Answer» Which of the following statements are in accordance with the Arrhenius equation? (a) Rate of a reaction increases with increase in temperature (b) Rate of a reaction increases with a decrease in activation energy (c) Rate constant decreases exponentially with an increase in temperature (d) Rate of reaction decreases with a decrease in activation energy

Discussion

28.	What is the difference between iso-bu†an e and tert-bu†an e? Draw the structural formul of tert-bu†an e
Answer» What is the difference between iso-bu†an e and tert-bu†an e? Draw the structural formul of tert-bu†an e

Discussion

29.	Chassez l'intrus.1. rouge, blanc, jaune, rose2. bleue, brun, noir, vert3. oiseau, chapeau, gâteau, maison4. feuille, étoile, lune, soleil
Answer» Chassez l'intrus. 1. rouge, blanc, jaune, rose 2. bleue, brun, noir, vert 3. oiseau, chapeau, gâteau, maison 4. feuille, étoile, lune, soleil

Discussion

30.	The following four gases are at the same temperature. In which gas do the molecules have the Maximum root mean square speed?
Answer» The following four gases are at the same temperature. In which gas do the molecules have the Maximum root mean square speed?

Discussion

31.	The chief ore of Zn is the sulphide, Zns. The ore is concentrated by froth floatation process and then heated in air to convert ZnS to ZnO. 2ZnS+{30}_2\xrightarrow{80%}2ZnO+2S02 ZnO + H_2S04\xrightarrow{100%} ZnSO4 + H2O 2ZnSO_{4 }+2H_2O\xrightarrow{80%}2Zn +2H_2SO_4+O_2 The number of moles of ZnS required for producing 2 moles of Zn will be: (a) 3.125 (b) 2 (c) 2.125 (d) 4
Answer» The chief ore of Zn is the sulphide, Zns. The ore is concentrated by froth floatation process and then heated in air to convert ZnS to ZnO. 2ZnS+{30}_2\xrightarrow{80%}2ZnO+2S02 ZnO + H_2S04\xrightarrow{100%} ZnSO4 + H2O 2ZnSO_{4 }+2H_2O\xrightarrow{80%}2Zn +2H_2SO_4+O_2 The number of moles of ZnS required for producing 2 moles of Zn will be: (a) 3.125 (b) 2 (c) 2.125 (d) 4

Discussion

32.	Question 03 The probability density plots of 1s and 2s orbital are given in figure. The density of dots in region represents the probability density of finding electrons in the region. On the basis of above diagram which of the following statements is incorrect ? (a) 1s and 2s orbitals are spherical in shape (b) The probability of finding electron is maximum near the nucleus (c) The probability of finding the electron at a given distance is equal in all directions (d) The probability density of electrons for 2s orbital decreases uniformly as distance from the nucleus increases
Answer» Question 03 The probability density plots of 1s and 2s orbital are given in figure. The density of dots in region represents the probability density of finding electrons in the region. On the basis of above diagram which of the following statements is incorrect ? (a) 1s and 2s orbitals are spherical in shape (b) The probability of finding electron is maximum near the nucleus (c) The probability of finding the electron at a given distance is equal in all directions (d) The probability density of electrons for 2s orbital decreases uniformly as distance from the nucleus increases

32.

Question 03 The probability density plots of 1s and 2s orbital are given in figure. The density of dots in region represents the probability density of finding electrons in the region. On the basis of above diagram which of the following statements is incorrect ? (a) 1s and 2s orbitals are spherical in shape (b) The probability of finding electron is maximum near the nucleus (c) The probability of finding the electron at a given distance is equal in all directions (d) The probability density of electrons for 2s orbital decreases uniformly as distance from the nucleus increases

Answer»

Question 03

The probability density plots of 1s and 2s orbital are given in figure.

The density of dots in region represents the probability density of finding electrons in the region. On the basis of above diagram which of the following statements is incorrect ?

(a) 1s and 2s orbitals are spherical in shape

(b) The probability of finding electron is maximum near the nucleus

(c) The probability of finding the electron at a given distance is equal in all directions

(d) The probability density of electrons for 2s orbital decreases uniformly as distance from the nucleus increases

Discussion

33.	Change in angular momentum when an elelctron makes a transition corresponding to the third line of the Balmer series in Li2+ ion is:
Answer» Change in angular momentum when an elelctron makes a transition corresponding to the third line of the Balmer series in $L i^{2 +} i o n$ is:

Discussion

34.	pH of solution made by mixing 200 mL of 0.1 M CH3COOH and 100 mL of 0.1 M NaOH is
Answer» pH of solution made by mixing 200 mL of 0.1 M CH3COOH and 100 mL of 0.1 M NaOH is

Discussion

35.	In H-atom for n=2, how many degenerate orbitals are there
Answer» In H-atom for n=2, how many degenerate orbitals are there

Discussion

36.	Which of the following is least basic ?With reference to this order shouldn't 4) be more basic as basicity decreases with increase in -I effect?-I effect:R3N>-NH2>-NHR>-NR2
Answer» Which of the following is least basic ? With reference to this order shouldn't 4) be more basic as basicity decreases with increase in -I effect? -I effect: R3N>-NH2>-NHR>-NR2

Discussion

37.	Which of the following will give maximum type of cations in water?(1) KCI.MgCl2.6H20(3) K,Fe(CN)(2) K.Fe(CN)(4) \lbrack Ag(CN)2
Answer» Which of the following will give maximum type of cations in water?(1) KCI.MgCl2.6H20(3) K,Fe(CN)(2) K.Fe(CN)(4) \lbrack Ag(CN)2

Discussion

38.	32. When hydrogen gas is burnt in chlorine 2000cals of heat is liberated during the formationof 3.65 g of HCI, AH of formation of HCl is2)-20 K.calbu4) -2 K.cal1) 2 K.cal3) +20 K.cal
Answer» 32. When hydrogen gas is burnt in chlorine 2000cals of heat is liberated during the formationof 3.65 g of HCI, AH of formation of HCl is2)-20 K.calbu4) -2 K.cal1) 2 K.cal3) +20 K.cal

Discussion

39.	Which of the following triatomic molecule(s) will behave as diatomic molecule for consideration of degrees of freedom?
Answer» Which of the following triatomic molecule(s) will behave as diatomic molecule for consideration of degrees of freedom?

Discussion

40.	17.Which one wil be parmagnetic in nature 1 co2 2 so2 3clo2 4 sio2
Answer» 17.Which one wil be parmagnetic in nature 1 co2 2 so2 3clo2 4 sio2

Discussion

41.	The fraction of total volume occupied by the atoms present in a simple cubic is
Answer» The fraction of total volume occupied by the atoms present in a simple cubic is

Discussion

42.	Choose the correct statement:
Answer» Choose the correct statement:

Discussion

43.	homogeneity depends on interest of scale. explain
Answer» homogeneity depends on interest of scale. explain

Discussion

44.	67.A diatomic molecule has adipole moment of 1.2D. If its bond length is equal to 10-10 (10raised to power -10) then the fraction of an electronic charge on each atom will be:- 1-42% 2-52% 3-37% 4-25%
Answer» 67.A diatomic molecule has adipole moment of 1.2D. If its bond length is equal to 10-10 (10raised to power -10) then the fraction of an electronic charge on each atom will be:- 1-42% 2-52% 3-37% 4-25%

Discussion

45.	An example for a strong electrolyte is
Answer» An example for a strong electrolyte is

Discussion

46.	1000 g of a mixture of Na2CO3,Na2SO4 and NaOH for complete neutralisation requires 511 g of HCl. The same mixture when reacted with excess of BaCl2 solution, produces 466 g of white precipitate of BaSO4. Calculate the mass percentage of NaOH in the mixture. (Given Molar mass of Na2CO3=106 g, Na2SO4=142 g, BaSO4=233 g, HCl=36.5 g and NaOH=40 g)
Answer» 1000 g of a mixture of $N a_{2} C O_{3}, N a_{2} S O_{4}$ and $N a O H$ for complete neutralisation requires 511 g of $H C l$ . The same mixture when reacted with excess of $B a C l_{2}$ solution, produces 466 g of white precipitate of $B a S O_{4}$ . Calculate the mass percentage of $N a O H$ in the mixture. (Given Molar mass of $N a_{2} C O_{3} = 106 g, N a_{2} S O_{4} = 142 g, B a S O_{4} = 233 g, H C l = 36.5 g a n d N a O H = 40 g$ )

Discussion

47.	Which unit is correct for Thermal conductivity? (1)J/s/m/k (2)J/s/k
Answer» Which unit is correct for Thermal conductivity? (1)J/s/m/k (2)J/s/k

Discussion

48.	structures of different isomeric amines corresponding to C_4H_{11}N.what type of isomerism is exhibited by different pairs of amines
Answer» structures of different isomeric amines corresponding to C_4H_{11}N.what type of isomerism is exhibited by different pairs of amines

Discussion

49.	An ant runs from an ant-hill in a straight line sothat its velocity is inversely proportional to thedistance from the center of ant-hill. When the antis at a point A at a distance 1 m from the centerof the hill, its velocity is 2 cm/s. Point B is at adistance of 2 m from the center of the ant-hill. Thetime taken by the ant to run from A to B is(1) 25 s(3) 55 s(2) 75 s(4) 65 s
Answer» An ant runs from an ant-hill in a straight line sothat its velocity is inversely proportional to thedistance from the center of ant-hill. When the antis at a point A at a distance 1 m from the centerof the hill, its velocity is 2 cm/s. Point B is at adistance of 2 m from the center of the ant-hill. Thetime taken by the ant to run from A to B is(1) 25 s(3) 55 s(2) 75 s(4) 65 s

Discussion

50.	the number of atoms in 88g CO2 is
Answer» the number of atoms in 88g CO2 is

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Ethene when treated with Br2 in the presence of CCl4 which compound is formed

Which among the following compounds on reaction with methyl magnesium bromide followed by hydrolysis with water will give 2-methyl-2-propanol?

One mole of an ideal gas (Cv=20 JK−1mol−1) initially at STP is heated at constant volume to twice the initial temperature. For the process, work done (w) and q will be :

The volume (in mL) of 0.1 M AgNO3 required for complete precipitation of chloride ions present in 30 mLof 0.01 M solution of [Cr(H2O)5Cl]Cl2 as silver chloride is close to

Most unstable metal carbonyl among the following is 1.Ni(CO)4 2.V(CO)6 3.Fe(CO)5 4.Cr(CO)

Two bodies A and B of same mass,area and surface finsih with specific heats Sa and Sb are allowed to cool for given temperature range. Temperature varies with time as

Name the type of hybridization of nitrogein N2H2 and N2H4

30. Two liquids having vapour pressure P^° 1 and P^° 2 in pure state in the ratio 2:1 are mixed in the molar ratio of 1:2.The ratio of their moles in the vapour state would be 1-1:1 2-1:2 3_2:1 4_3:2

A compound contains equal masses of the elements A, B &amp; C. If the gram atomic masses of A, B &amp; C are 60 g, 20 g &amp; 40 g respectively. Determine the molecular formula of the compound if the molecular mass is 720 g.

22. If the ionisation potential of an atom .is 20V its 1st excitation potential will b

3.0×10−3 kg of acetic acid is added to 500 mL of water. 23% of acetic acid is dissociated. If Kf and density of water are 1.86Kkgmol−1 and 0.997 g/mL respectively. The depression in freezing point of acetic acid is :

49. 0.177g of a metal produces with dil HCl 177ml of dry hydrogen gas at 766 mm and 12 degree Celsius. The equivalent weight of metal is? (1) 17.7 (2) 11.6 (3) 23 (4) 12

Complétez les phrases selon le sens.(en verre, en cristal, en fer, en marbre, en soie, en or, en coton,en laine, en plastique, en bois, en fourrure.)

Q14/15 For the reaction A38 2c+D, initial mole of A is twicethat of B. If at equilibrium moles of B and C are equal, percentof B reacted is

Which of the following is evolved/deposited at anode when electrolysis of molten NaCl using inert platinum electrodes is carried out?

A sample of a pure compound contains 9.81 gm of Zn, 1.8×1023 atoms of chromium and 0.60 mole of oxygen atoms. What is its simplest formula?

What is common in all the images given below?

Which of the following possess two lone pair of electrons on the central atom and square planar in shape? (I) SF4 (II) XeO4 (III) XeF4 (IV) ICl−4

How to determine charge on cationic coordination sphere and anionic coordination sphere in coordination coordination isomerism

5% (w/v) solution of glucose is isotonic with 2% (w/v) solution of a non-volatile non electrolyte substance at same ‘T’. The molecular mass of the substance will be:[0.77 Mark]

Why electron revolve around the nucleus without emitting the radiant energy

What is mass of sodium acetate required to maken200 ml of 0.245 molar aqueous solution

How to gind oxidization state of any element in redox reaction like mno^4

40. Velocity of electron in 3rd shell of Li+2 is (C- velocity of light)

Diborane on hydrolysis gives

What is the difference between iso-bu†an e and tert-bu†an e? Draw the structural formul of tert-bu†an e

Chassez l'intrus.1. rouge, blanc, jaune, rose2. bleue, brun, noir, vert3. oiseau, chapeau, gâteau, maison4. feuille, étoile, lune, soleil

The following four gases are at the same temperature. In which gas do the molecules have the Maximum root mean square speed?

Change in angular momentum when an elelctron makes a transition corresponding to the third line of the Balmer series in Li2+ ion is:

pH of solution made by mixing 200 mL of 0.1 M CH3COOH and 100 mL of 0.1 M NaOH is

In H-atom for n=2, how many degenerate orbitals are there

Which of the following is least basic ?With reference to this order shouldn't 4) be more basic as basicity decreases with increase in -I effect?-I effect:R3N>-NH2>-NHR>-NR2

Which of the following will give maximum type of cations in water?(1) KCI.MgCl2.6H20(3) K,Fe(CN)(2) K.Fe(CN)(4) \lbrack Ag(CN)2

32. When hydrogen gas is burnt in chlorine 2000cals of heat is liberated during the formationof 3.65 g of HCI, AH of formation of HCl is2)-20 K.calbu4) -2 K.cal1) 2 K.cal3) +20 K.cal

Which of the following triatomic molecule(s) will behave as diatomic molecule for consideration of degrees of freedom?

17.Which one wil be parmagnetic in nature 1 co2 2 so2 3clo2 4 sio2

The fraction of total volume occupied by the atoms present in a simple cubic is

Choose the correct statement:

homogeneity depends on interest of scale. explain

67.A diatomic molecule has adipole moment of 1.2D. If its bond length is equal to 10-10 (10raised to power -10) then the fraction of an electronic charge on each atom will be:- 1-42% 2-52% 3-37% 4-25%

An example for a strong electrolyte is

Which unit is correct for Thermal conductivity? (1)J/s/m/k (2)J/s/k

structures of different isomeric amines corresponding to C_4H_{11}N.what type of isomerism is exhibited by different pairs of amines

the number of atoms in 88g CO2 is

A compound contains equal masses of the elements A, B & C. If the gram atomic masses of A, B & C are 60 g, 20 g & 40 g respectively. Determine the molecular formula of the compound if the molecular mass is 720 g.