46295 + Interview Questions in Chemistry

1.	Aqueous sulphuric acid reacts with 2-methyl-1-butene to give predominantly
Answer» Aqueous sulphuric acid reacts with 2-methyl-1-butene to give predominantly

Discussion

2.	What are the products of the given reaction?
Answer» What are the products of the given reaction?

Discussion

3.	What is the correct structure of the amine produced by the Hoffmann degradation of benzamide ?
Answer» What is the correct structure of the amine produced by the Hoffmann degradation of benzamide ?

Discussion

4.	Nitrogen has positive electron gain enthalpy whereas oxygen has negative. However, oxygen has lower ionisation enthalpy than nitrogen. Explain.
Answer» Nitrogen has positive electron gain enthalpy whereas oxygen has negative. However, oxygen has lower ionisation enthalpy than nitrogen. Explain.

Discussion

5.	Arrange them on the basis of electronegativity of elements increases H2O , NH3 , HF , CH3 Book Solution CH3
Answer» Arrange them on the basis of electronegativity of elements increases H₂O , NH₃, HF , CH3 Book Solution CH3 My Problem Electronegativity of C is 2.5 so it is first. Electronegativity of N is 3.0 so it is second. But how I can differentiate between H2O and HF Is my way of solving this problem is correct and if not then what is correct way tell me.

Discussion

6.	Acetonitrile on reduction with LiAlH4 will give
Answer» Acetonitrile on reduction with $L i A l H_{4}$ will give

Discussion

7.	What is the order of substituent groups in +M and - M effect?
Answer» What is the order of substituent groups in +M and - M effect?

Discussion

8.	Calculate the EN of silicon using Allred-Rochow equation if the covalent radius of silicon is 1.175oA.
Answer» Calculate the EN of silicon using Allred-Rochow equation if the covalent radius of silicon is $1.175 o A$ .

Discussion

9.	What is the oxidation number of Cl3?
Answer» What is the oxidation number of Cl3?

Discussion

10.	A uniform rod of mass m and length l is hinged at its one end and moving in vertical plane. The torque acting about hinged point at the instant rod is making angle $ with the horizontal is what?
Answer» A uniform rod of mass m and length l is hinged at its one end and moving in vertical plane. The torque acting about hinged point at the instant rod is making angle $ with the horizontal is what?

Discussion

11.	What is potable water? What are the characteristics of potable water?
Answer» What is potable water? What are the characteristics of potable water?

Discussion

12.	pg 357 qq arrangw in inc order of boiling point Ch3CH2CH2CHO and C2H5OC2H5 why in this c2H550C2H5 is not higher it should be because of symmetrical intge same page upper table acetone is grater than propan al due to symmetrical then why nor her
Answer» pg 357 qq arrangw in inc order of boiling point Ch3CH2CH2CHO and C2H5OC2H5 why in this c2H550C2H5 is not higher it should be because of symmetrical intge same page upper table acetone is grater than propan al due to symmetrical then why nor her

Discussion

13.	Isoelectric point for neutral amino acid, glycine is (1) 7 (2) 7 (4) All of the above are possible
Answer» Isoelectric point for neutral amino acid, glycine is (1) 7 (2) <7 (3) >7 (4) All of the above are possible

Discussion

14.	4. in compound M-OH the acidic nature increases when (1)I.E of Mis low (2)I.E of M is very low (3)I.E of M is high
Answer» 4. in compound M-OH the acidic nature increases when (1)I.E of Mis low (2)I.E of M is very low (3)I.E of M is high

Discussion

15.	Which of the following reactions are comproportionation reactions?
Answer» Which of the following reactions are comproportionation reactions?

Discussion

16.	10 Order of basicity of amines in gaseous state and aquaeous state are
Answer» 10 Order of basicity of amines in gaseous state and aquaeous state are

Discussion

17.	Match List I with List II and select the correct answer using the codes given below the lists:
Answer» Match List I with List II and select the correct answer using the codes given below the lists:

17.

Match List I with List II and select the correct answer using the codes given below the lists:

Answer»

Match List I with List II and select the correct answer using the codes given below the lists:

Discussion

18.	Which of the following relation is correct?(IE = Ionisation energy in eV/atom, EA = Electron affinity in eV/atom, EN = Electronegativity in Mulliken scale)
Answer» Which of the following relation is correct? $(IE = Ionisation energy in eV/atom, EA = Electron affinity in eV/atom, EN = Electronegativity in Mulliken scale)$

Discussion

19.	If 1.2g of metal displace 1.12 lit hydrogen at normal temperature & pressure, equivalent weight of metal would be
Answer» If 1.2g of metal displace 1.12 lit hydrogen at normal temperature & pressure, equivalent weight of metal would be

Discussion

20.	A well insulated rigid mixing chamber is shown below. The pressure inside the chamber is maintained at 400 kPa and saturation temperature corresponding to 400 kPa is 156.40C.Fluid A enters at 900C, with a flow rate of 0.8 kg/s where fluid B has a flow rate of 0.6 kg/s. If final mixture leaves at 560C the temperature of fluid B is
Answer» A well insulated rigid mixing chamber is shown below. The pressure inside the chamber is maintained at 400 kPa and saturation temperature corresponding to 400 kPa is ${156.4}^{0} C$ . Fluid A enters at $90^{0} C$ , with a flow rate of 0.8 kg/s where fluid B has a flow rate of 0.6 kg/s. If final mixture leaves at $56^{0} C$ the temperature of fluid B is

20.

A well insulated rigid mixing chamber is shown below. The pressure inside the chamber is maintained at 400 kPa and saturation temperature corresponding to 400 kPa is 156.40C.Fluid A enters at 900C, with a flow rate of 0.8 kg/s where fluid B has a flow rate of 0.6 kg/s. If final mixture leaves at 560C the temperature of fluid B is

Answer»

A well insulated rigid mixing chamber is shown below. The pressure inside the chamber is maintained at 400 kPa and saturation temperature corresponding to 400 kPa is ${156.4}^{0} C$ .

Fluid A enters at $90^{0} C$ , with a flow rate of 0.8 kg/s where fluid B has a flow rate of 0.6 kg/s. If final mixture leaves at $56^{0} C$ the temperature of fluid B is

Discussion

21.	Two oxides of a metal contain 27.3% and 30% oxygen by mass respectively. If the formula of the first oxide is MO, then the formula of the second oxide is:-1. MO2. MO2 3. M2O3 4. M2O
Answer» Two oxides of a metal contain 27.3% and 30% oxygen by mass respectively. If the formula of the first oxide is MO, then the formula of the second oxide is:- 1. MO 2. $M O_{2}$ 3. $M_{2} O_{3}$ 4. $M_{2} O$

21.

Two oxides of a metal contain 27.3% and 30% oxygen by mass respectively. If the formula of the first oxide is MO, then the formula of the second oxide is:-1. MO2. MO2 3. M2O3 4. M2O

Answer»

Two oxides of a metal contain 27.3% and 30% oxygen by mass respectively. If the formula of the first oxide is MO, then the formula of the second oxide is:-

1. MO

2. $M O_{2}$

3. $M_{2} O_{3}$

4. $M_{2} O$

Discussion

22.	why H in carbonyl group of formaldehyde is not proton donating or acidi
Answer» why H in carbonyl group of formaldehyde is not proton donating or acidi

Discussion

23.	Proteins fulfil severalfunctions in living systems. An example of a protein which acts as a hormone is [KCET1985]
Answer» Proteins fulfil several functions in living systems. An example of a protein which acts as a hormone is [KCET 1985]

23.

Proteins fulfil severalfunctions in living systems. An example of a protein which acts as a hormone is [KCET1985]

Answer»

Proteins fulfil several
functions in living systems. An example of a protein which acts as a hormone is

[KCET
1985]

Discussion

24.	Give two reasons to justify.(a) Water at room temperature is a liquid.(b) An iron almirah is a solid at room temperature.
Answer» Give two reasons to justify. (a) Water at room temperature is a liquid. (b) An iron almirah is a solid at room temperature.

24.

Give two reasons to justify.(a) Water at room temperature is a liquid.(b) An iron almirah is a solid at room temperature.

Answer»

Give two reasons to justify.

(a) Water at room temperature is a liquid.

(b) An iron almirah is a solid at room temperature.

Discussion

25.	49% (w/w) H2SO4 stock solution has a density of 1.2 gml−1. The volume of stock solution required to prepare 180 ml solution of 2N H2SO4 is:
Answer» $49 % (w / w) H_{2} S O_{4}$ stock solution has a density of $1.2 g m l^{- 1}$ . The volume of stock solution required to prepare 180 ml solution of 2N $H_{2} S O_{4}$ is:

Discussion

26.	13. What is pedigree chart analysis
Answer» 13. What is pedigree chart analysis

Discussion

27.	ntA diatomic molecule has a dipole 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:-n nt1-42%n nt2-52%n nt3-37%n nt4-25%n
Answer» ntA diatomic molecule has a dipole 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:-n nt1-42%n nt2-52%n nt3-37%n nt4-25%n

Discussion

28.	The vapour pressure of pure benzene at certain temperature is 640 mm of Hg. A non-volatile non-electrolyte solid weighing 2.175 g is added to 39.0 g of benzene. The vapour pressure of the solution is 600 mm of Hg. What is the molar mass of the solid substance?
Answer» The vapour pressure of pure benzene at certain temperature is $640 m m$ of $H g$ . A non-volatile non-electrolyte solid weighing $2.175 g$ is added to $39.0 g$ of benzene. The vapour pressure of the solution is $600 m m$ of $H g$ . What is the molar mass of the solid substance?

Discussion

29.	With reference to which classification has the statement, ‘ranitidine is an antacid” been given?
Answer» With reference to which classification has the statement, ‘ranitidine is an antacid” been given?

Discussion

30.	Which of the following is correct order regarding nucleophilic substitution?
Answer» Which of the following is correct order regarding nucleophilic substitution?

Discussion

31.	Silicon has a strong tendency to form polymers like silicones. The chain length of silicones polymer can be controlled by adding:
Answer» Silicon has a strong tendency to form polymers like silicones. The chain length of silicones polymer can be controlled by adding:

Discussion

32.	What is the change in oxidation number of carbon in the following reaction?CO(g)+12O2(g)→CO2(g)
Answer» What is the change in oxidation number of carbon in the following reaction? $C O (g) + \frac{1}{2} O_{2} (g) \to C O_{2} (g)$

Discussion

33.	Consider the reaction,A + B → C + D, if the concentration of A is doubled without altering the concentration of B, the rate gets doubled. If the concentration of B is increased by nine times without altering the concentration of A, the rate gets tripled. The order of the reaction is?1.5
Answer» Consider the reaction, A + B $\to$ C + D, if the concentration of A is doubled without altering the concentration of B, the rate gets doubled. If the concentration of B is increased by nine times without altering the concentration of A, the rate gets tripled. The order of the reaction is? 1.5

Discussion

34.	Match the column: Column−I Column−II(a)Flux(p)SiO2(b)Slag(q)CaO(c)Acidic flux(r)CaSiO3(d)Basic flux(s)MgO (t)FeSiO3
Answer» Match the column: $\begin{matrix} C o l u m n - I & C o l u m n - I I (a) & F l u x & (p) & S i O_{2} (b) & S l a g & (q) & C a O (c) & A c i d i c f l u x & (r) & C a S i O_{3} (d) & B a s i c f l u x & (s) & M g O (t) & F e S i O_{3} \end{matrix}$

Discussion

35.	The stability of given free radicals in decreasing order is1) CH3−˙CH22) CH3−C˙H−CH33) CH3−˙C−CH3 \| CH34) C˙H3
Answer» The stability of given free radicals in decreasing order is $1) C H_{3} - ˙ C H_{2} 2) C H_{3} - C ˙ H - C H_{3} 3) C H_{3} - ˙ C - C H_{3} \| C H_{3} 4) C_{3}$

35.

The stability of given free radicals in decreasing order is1) CH3−˙CH22) CH3−C˙H−CH33) CH3−˙C−CH3 | CH34) C˙H3

Answer»

The stability of given free radicals in decreasing order is

$1) C H_{3} - ˙ C H_{2} 2) C H_{3} - C ˙ H - C H_{3} 3) C H_{3} - ˙ C - C H_{3} | C H_{3} 4) C_{3}$

Discussion

36.	What is the mass of 10 gram molecule of sodium sulphite
Answer» What is the mass of 10 gram molecule of sodium sulphite

Discussion

37.	Choose the correct answer:1. To ask someone's name we use.(a) Comment allez-vous? (b) Comment vous appelez-vous?2. To thank someone we use.(a) Merci (b) S'il vous plaît3. To introduce oneself we use.(a) Il s'appelle (b) Je m'appelle4. To tell one's age we use.(a) J'ai neuf ans. (b) Je suis neuf ans. 5. To say where one lives we use.(a) J'ai un frère. (b) J'habite à Paris.
Answer» Choose the correct answer: 1. To ask someone's name we use. (a) Comment allez-vous? (b) Comment vous appelez-vous? 2. To thank someone we use. (a) Merci (b) S'il vous plaît 3. To introduce oneself we use. (a) Il s'appelle (b) Je m'appelle 4. To tell one's age we use. (a) J'ai neuf ans. (b) Je suis neuf ans. 5. To say where one lives we use. (a) J'ai un frère. (b) J'habite à Paris.

37.

Choose the correct answer:1. To ask someone's name we use.(a) Comment allez-vous? (b) Comment vous appelez-vous?2. To thank someone we use.(a) Merci (b) S'il vous plaît3. To introduce oneself we use.(a) Il s'appelle (b) Je m'appelle4. To tell one's age we use.(a) J'ai neuf ans. (b) Je suis neuf ans. 5. To say where one lives we use.(a) J'ai un frère. (b) J'habite à Paris.

Answer»

Choose the correct answer:

1. To ask someone's name we use.

(a) Comment allez-vous? (b) Comment vous appelez-vous?

2. To thank someone we use.

(a) Merci (b) S'il vous plaît

3. To introduce oneself we use.

(a) Il s'appelle (b) Je m'appelle

4. To tell one's age we use.

(a) J'ai neuf ans. (b) Je suis neuf ans.

5. To say where one lives we use.

(a) J'ai un frère. (b) J'habite à Paris.

Discussion

38.	Are prefixes like bis, tris, tetrakis, etc. considered in alphabetical order in nomenclature of coordination compounds?
Answer» Are prefixes like bis, tris, tetrakis, etc. considered in alphabetical order in nomenclature of coordination compounds?

Discussion

39.	If an electric iron of 1200 W is used for 30 minutes every day, electric energy consumed in the month of April is -
Answer» If an electric iron of $1200 W$ is used for $30$ minutes every day, electric energy consumed in the month of April is -

Discussion

40.	What is the pH of NH_4CN solution. If pK_b for HCN and NH_4^{+ }are 5.2 & 9.2 respectively
Answer» What is the pH of NH_4CN solution. If pK_b for HCN and NH_4^{+ }are 5.2 & 9.2 respectively

Discussion

41.	Ziegler - Natta catalyst is used in the preparation of
Answer» Ziegler - Natta catalyst is used in the preparation of

Discussion

42.	In hexagonal systems of crystals, a frequently encountered arrangement of atoms is described as a hexagonal prism. Here, the top and bottom of the cell are regular hexagons and three atoms are sandwiched in between them. A space-filling model of this structure, called hexagonal close-packed (HCP), is constituted of a sphere on a flat surface surrounded in the same plane by six identical spheres as closely as possible. Three spheres are then placed over the first layer so that they touch each other and represent the second layer. Each one of these three spheres touches three spheres of the bottom layer. Finally, the second layer is covered with third layer that is identical to the bottom layer in relative position. Assume radius of every sphere to be 'r'.The empty space in this HCP unit cell is?
Answer» In hexagonal systems of crystals, a frequently encountered arrangement of atoms is described as a hexagonal prism. Here, the top and bottom of the cell are regular hexagons and three atoms are sandwiched in between them. A space-filling model of this structure, called hexagonal close-packed (HCP), is constituted of a sphere on a flat surface surrounded in the same plane by six identical spheres as closely as possible. Three spheres are then placed over the first layer so that they touch each other and represent the second layer. Each one of these three spheres touches three spheres of the bottom layer. Finally, the second layer is covered with third layer that is identical to the bottom layer in relative position. Assume radius of every sphere to be 'r'. The empty space in this HCP unit cell is?

Discussion

43.	assertion:-in the presence of NaBH4 CH2=CH-CHO is reduced to give CH3-CH2-CH2OH reason:-NaBH4 reduces conjugated double bonds lso
Answer» assertion:-in the presence of NaBH4 CH2=CH-CHO is reduced to give CH3-CH2-CH2OH reason:-NaBH4 reduces conjugated double bonds lso

Discussion

44.	27. Two flasks x and y have capacity 1L and 2L respectively and each of them contains 1 mole of a gas . The temperature of the flasks are so adjusted that average speed of molecules in X is twice as those in Y . The pressure in flasks X would be
Answer» 27. Two flasks x and y have capacity 1L and 2L respectively and each of them contains 1 mole of a gas . The temperature of the flasks are so adjusted that average speed of molecules in X is twice as those in Y . The pressure in flasks X would be

Discussion

45.	How many components are present in a colloidal solution?2
Answer» How many components are present in a colloidal solution? 2

Discussion

46.	How to write the electronic configuration for a given element?
Answer» How to write the electronic configuration for a given element?

Discussion

47.	Chlorine can not displace
Answer» Chlorine can not displace

Discussion

48.	Ag forms fcc lattice . What are the total no. of voids present in 2.16g of Ag?
Answer» Ag forms fcc lattice . What are the total no. of voids present in 2.16g of Ag?

Discussion

49.	how to convert propan-2-ol into formaldehyd
Answer» how to convert propan-2-ol into formaldehyd

Discussion

50.	O with negative charge or secondary amine shows better inductive effect and why??(+I)
Answer» O with negative charge or secondary amine shows better inductive effect and why??(+I)

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Aqueous sulphuric acid reacts with 2-methyl-1-butene to give predominantly

What are the products of the given reaction?

What is the correct structure of the amine produced by the Hoffmann degradation of benzamide ?

Nitrogen has positive electron gain enthalpy whereas oxygen has negative. However, oxygen has lower ionisation enthalpy than nitrogen. Explain.

Arrange them on the basis of electronegativity of elements increases H​​​​​​2​​​​​O , NH​​​​​3 , HF , CH3 Book Solution CH3

Acetonitrile on reduction with LiAlH4 will give

What is the order of substituent groups in +M and - M effect?

Calculate the EN of silicon using Allred-Rochow equation if the covalent radius of silicon is 1.175oA.

What is the oxidation number of Cl3?

A uniform rod of mass m and length l is hinged at its one end and moving in vertical plane. The torque acting about hinged point at the instant rod is making angle $ with the horizontal is what?

What is potable water? What are the characteristics of potable water?

pg 357 qq arrangw in inc order of boiling point Ch3CH2CH2CHO and C2H5OC2H5 why in this c2H550C2H5 is not higher it should be because of symmetrical intge same page upper table acetone is grater than propan al due to symmetrical then why nor her

Isoelectric point for neutral amino acid, glycine is (1) 7 (2) 7 (4) All of the above are possible

4. in compound M-OH the acidic nature increases when (1)I.E of Mis low (2)I.E of M is very low (3)I.E of M is high

Which of the following reactions are comproportionation reactions?

10 Order of basicity of amines in gaseous state and aquaeous state are

Match List I with List II and select the correct answer using the codes given below the lists:

Which of the following relation is correct?(IE = Ionisation energy in eV/atom, EA = Electron affinity in eV/atom, EN = Electronegativity in Mulliken scale)

If 1.2g of metal displace 1.12 lit hydrogen at normal temperature &amp; pressure, equivalent weight of metal would be

Two oxides of a metal contain 27.3% and 30% oxygen by mass respectively. If the formula of the first oxide is MO, then the formula of the second oxide is:-1. MO2. MO2 3. M2O3 4. M2O

why H in carbonyl group of formaldehyde is not proton donating or acidi

Proteins fulfil severalfunctions in living systems. An example of a protein which acts as a hormone is [KCET1985]

Give two reasons to justify.(a) Water at room temperature is a liquid.(b) An iron almirah is a solid at room temperature.

49% (w/w) H2SO4 stock solution has a density of 1.2 gml−1. The volume of stock solution required to prepare 180 ml solution of 2N H2SO4 is:

13. What is pedigree chart analysis

ntA diatomic molecule has a dipole 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:-n nt1-42%n nt2-52%n nt3-37%n nt4-25%n

The vapour pressure of pure benzene at certain temperature is 640 mm of Hg. A non-volatile non-electrolyte solid weighing 2.175 g is added to 39.0 g of benzene. The vapour pressure of the solution is 600 mm of Hg. What is the molar mass of the solid substance?

With reference to which classification has the statement, ‘ranitidine is an antacid” been given?

Which of the following is correct order regarding nucleophilic substitution?

Silicon has a strong tendency to form polymers like silicones. The chain length of silicones polymer can be controlled by adding:

What is the change in oxidation number of carbon in the following reaction?CO(g)+12O2(g)→CO2(g)

Consider the reaction,A + B → C + D, if the concentration of A is doubled without altering the concentration of B, the rate gets doubled. If the concentration of B is increased by nine times without altering the concentration of A, the rate gets tripled. The order of the reaction is?1.5

Match the column: Column−I Column−II(a)Flux(p)SiO2(b)Slag(q)CaO(c)Acidic flux(r)CaSiO3(d)Basic flux(s)MgO (t)FeSiO3

The stability of given free radicals in decreasing order is1) CH3−˙CH22) CH3−C˙H−CH33) CH3−˙C−CH3 | CH34) C˙H3

What is the mass of 10 gram molecule of sodium sulphite

Are prefixes like bis, tris, tetrakis, etc. considered in alphabetical order in nomenclature of coordination compounds?

If an electric iron of 1200 W is used for 30 minutes every day, electric energy consumed in the month of April is -

What is the pH of NH_4CN solution. If pK_b for HCN and NH_4^{+ }are 5.2 & 9.2 respectively

Ziegler - Natta catalyst is used in the preparation of

assertion:-in the presence of NaBH4 CH2=CH-CHO is reduced to give CH3-CH2-CH2OH reason:-NaBH4 reduces conjugated double bonds lso

27. Two flasks x and y have capacity 1L and 2L respectively and each of them contains 1 mole of a gas . The temperature of the flasks are so adjusted that average speed of molecules in X is twice as those in Y . The pressure in flasks X would be

How many components are present in a colloidal solution?2

How to write the electronic configuration for a given element?

Chlorine can not displace

Ag forms fcc lattice . What are the total no. of voids present in 2.16g of Ag?

how to convert propan-2-ol into formaldehyd

O with negative charge or secondary amine shows better inductive effect and why??(+I)

Arrange them on the basis of electronegativity of elements increases H2O , NH3 , HF , CH3 Book Solution CH3

If 1.2g of metal displace 1.12 lit hydrogen at normal temperature & pressure, equivalent weight of metal would be