15280 + Interview Questions in Chemistry Page 111 InterviewSolution

5501.	164% Most stable carbocation is4(a) CH3- CH2(b) CH3-CH CH3(c) C(CH3)3(d) C6H5-CH2 (BHU)
Answer» 164% Most stable carbocation is4(a) CH3- CH2(b) CH3-CH CH3(c) C(CH3)3(d) C6H5-CH2 (BHU)

Discussion

5502.	Calculate the pH of the mixture : 8 g of NaOH +680 mL of 1 M HCl+10 mL of H2SO4, (specific gravity 1.2, 49% H2SO4 by mass). The total volume of the solution was made to 1 L with water:
Answer» Calculate the pH of the mixture : 8 g of NaOH +680 mL of 1 M HCl+10 mL of H2SO4, (specific gravity 1.2, 49% H2SO4 by mass). The total volume of the solution was made to 1 L with water:

Discussion

5503.	(a) Name two fertilizers manufactured from ammonia.(b) Write an equation for the reaction to prepare one fertilizer from ammonia.
Answer» (a) Name two fertilizers manufactured from ammonia. (b) Write an equation for the reaction to prepare one fertilizer from ammonia.

Discussion

5504.	What happens to the rate of a reaction when the concentration of reactant is increased?
Answer» What happens to the rate of a reaction when the concentration of reactant is increased?

Discussion

5505.	Raghav was performing an experiment. He observed that 2 gm of lead nitrate decomposes to form 2 gm of lead oxide. Find the mass of lead oxide formed by the decomposition of 500 gm of lead nitrate if only 80% of lead nitrate is pure.
Answer» Raghav was performing an experiment. He observed that 2 gm of lead nitrate decomposes to form 2 gm of lead oxide. Find the mass of lead oxide formed by the decomposition of 500 gm of lead nitrate if only 80% of lead nitrate is pure.

Discussion

5506.	The mole fraction of solvent in a solution having 6 moles of sugar dissolved in 18 moles of solvent is
Answer» The mole fraction of solvent in a solution having 6 moles of sugar dissolved in 18 moles of solvent is

Discussion

5507.	Benzene with NO2 name??
Answer» Benzene with NO2 name??

Discussion

5508.	Which group does Hydrogen belong to?
Answer» Which group does Hydrogen belong to?

Discussion

5509.	Metal + Acid → ? + ?
Answer» Metal + Acid → ? + ?

Discussion

5510.	Is there any tricks to memorize the whole periodic table with atomic numbers and valencies?
Answer» Is there any tricks to memorize the whole periodic table with atomic numbers and valencies?

Discussion

5511.	Find the structure of Picric acid:
Answer» Find the structure of Picric acid:

Discussion

5512.	If an atom contains one electron and one proton, will it carry any charge or not?
Answer» If an atom contains one electron and one proton, will it carry any charge or not?

Discussion

5513.	Which property of copper and aluminium makes them suitable: (a) for making cooking utensils and boilers? (b) for making electric wires?
Answer» Which property of copper and aluminium makes them suitable: (a) for making cooking utensils and boilers? (b) for making electric wires?

Discussion

5514.	Which of the following is/are chain isomer(s) of hexane?
Answer» Which of the following is/are chain isomer(s) of hexane?

Discussion

5515.	An oleum sample was labelled as 110H2SO4. if 8 gram of H2O was added in 200 gram of Oleum sample then find out volume of SO3 at 3 ATM pressure and 27^°C temperature that will remain in solution.
Answer» An oleum sample was labelled as 110H2SO4. if 8 gram of H2O was added in 200 gram of Oleum sample then find out volume of SO3 at 3 ATM pressure and 27^°C temperature that will remain in solution.

Discussion

5516.	(a) Give one example, with an equation, of the displacement of hydrogen by a metal from an acid. (b) Name two metals (other than zinc and iron) which can displace hydrogen from dilute hydrochloric acid?
Answer» (a) Give one example, with an equation, of the displacement of hydrogen by a metal from an acid. (b) Name two metals (other than zinc and iron) which can displace hydrogen from dilute hydrochloric acid?

Discussion

5517.	In periodic table which is the most A. Metallic element B. Non metallic element Also state the reason.
Answer» In periodic table which is the most A. Metallic element B. Non metallic element Also state the reason.

Discussion

5518.	A metal X which is resistant to corrosion is produced by the electrolysis of its molten oxide whereas another metal Y which is also resistant to corrosion is produced by the reduction of its oxide with carbon. Metal X can be used in powder form in thermite welding whereas metal Y is used in making cathodes of ordinary dry cells. (a) Name the metals X and Y. (b) Which of the two metals is more reactive: X or Y? (c) Name one ore or metal X. Also, write its chemical formula. (d) Name one ore of metal Y. Also, write its chemical formula. (e) Name one alloy of metal X and one alloy of metal Y.
Answer» A metal X which is resistant to corrosion is produced by the electrolysis of its molten oxide whereas another metal Y which is also resistant to corrosion is produced by the reduction of its oxide with carbon. Metal X can be used in powder form in thermite welding whereas metal Y is used in making cathodes of ordinary dry cells. (a) Name the metals X and Y. (b) Which of the two metals is more reactive: X or Y? (c) Name one ore or metal X. Also, write its chemical formula. (d) Name one ore of metal Y. Also, write its chemical formula. (e) Name one alloy of metal X and one alloy of metal Y.

Discussion

5519.	5 The amount of rotation of plane of polarised light does not depend upon 1. the nature of the light beam 2. the specific rotation 3. the number of asymmetric carbon atoms in the molecule of a substance 4. the number of molecules
Answer» 5 The amount of rotation of plane of polarised light does not depend upon 1. the nature of the light beam 2. the specific rotation 3. the number of asymmetric carbon atoms in the molecule of a substance 4. the number of molecules

Discussion

5520.	Assertion: Group 18 elements do not combine with any other elements. Reason: All the elements of group 18 have a stable configuration.
Answer» Assertion: Group 18 elements do not combine with any other elements. Reason: All the elements of group 18 have a stable configuration.

Discussion

5521.	Explain the following:(i) Ethene and ethyne burn with a sooty luminous flame.(ii) Ethane does not undergo addition reactions.(iii) Ethyne is used for welding and cutting metals.
Answer» Explain the following: (i) Ethene and ethyne burn with a sooty luminous flame. (ii) Ethane does not undergo addition reactions. (iii) Ethyne is used for welding and cutting metals.

Discussion

5522.	Let us take the example of Bismuth. It's atomic number is 83 . Then how do we identify whether its atomic sixe increases or decreases?
Answer» Let us take the example of Bismuth. It's atomic number is 83 . Then how do we identify whether its atomic sixe increases or decreases?

Discussion

5523.	A drop of olive oil of radius 0.25mm spreads into a circular film of radius 5cm on the water surface. Estimate the thickness of the film
Answer» A drop of olive oil of radius 0.25mm spreads into a circular film of radius 5cm on the water surface. Estimate the thickness of the film

Discussion

5524.	Functional isomer of CH3−CH2−OH is:
Answer» Functional isomer of $C H_{3} - C H_{2} - O H$ is:

Discussion

5525.	Neon gas of a given mass expand isothermally to double volume. What should be the further fractional decrease in pressure, so that the gas when adiabatically compressed from that state reaches the original state
Answer» Neon gas of a given mass expand isothermally to double volume. What should be the further fractional decrease in pressure, so that the gas when adiabatically compressed from that state reaches the original state

Discussion

5526.	If an atom is sharing its 8 valence electrons with another atom, then:
Answer» If an atom is sharing its 8 valence electrons with another atom, then:

Discussion

5527.	What are lone pairs of electrons ?
Answer» What are lone pairs of electrons ?

Discussion

5528.	bigger size of atoms is vali3d fo r elements till 20 only?
Answer» bigger size of atoms is vali3d fo r elements till 20 only?

Discussion

5529.	What is sewage? How is sewage disposed of?
Answer» What is sewage? How is sewage disposed of?

Discussion

5530.	P is a thin metal plate between plates of a PPC . What is the capacitance now ?
Answer» P is a thin metal plate between plates of a PPC . What is the capacitance now ?

Discussion

5531.	What is ment by Amphoteric ?
Answer» What is ment by Amphoteric ?

Discussion

5532.	Volume occupied by 24 g O2(g) at 0.1 atm pressureand 27°C temperature is (Assume ideal behaviour)(R = 0.08 L atm mol–1 K–1)
Answer» Volume occupied by 24 g O2 (g) at 0.1 atm pressure and 27°C temperature is (Assume ideal behaviour) (R = 0.08 L atm mol–1 K–1)

Discussion

5533.	One of the following is not a consumer. This one is : (a) giraffe (b) antelope (c) algae (d) alligator
Answer» One of the following is not a consumer. This one is : (a) giraffe (b) antelope (c) algae (d) alligator

5533.

One of the following is not a consumer. This one is : (a) giraffe (b) antelope (c) algae (d) alligator

Answer»

One of the following is not a consumer. This one is :

(a) giraffe

(b) antelope

(c) algae

(d) alligator

Discussion

5534.	34. A direct current deposits 54 g of silver during the electrolysis the same quantity of electricity would deposit aluminum from aluminium chloride in molten state equal to
Answer» 34. A direct current deposits 54 g of silver during the electrolysis the same quantity of electricity would deposit aluminum from aluminium chloride in molten state equal to

Discussion

5535.	47. If r is the radius of the first orbit, the radius of nth orbit of H atom is given by
Answer» 47. If r is the radius of the first orbit, the radius of nth orbit of H atom is given by

Discussion

5536.	Which of the following is redox reaction? (1) AgNO3 + NaCl  AgCl + NaNO3 (2) CaCO3 + H2SO4  CaSO4 + CO2 + H2O (3) 2Na + 2H2O  2NaOH + H2 (4) Cu(OH)2 + 2HCl  CuCl2 + 2H2O
Answer» Which of the following is redox reaction? (1) AgNO3 + NaCl  AgCl + NaNO3 (2) CaCO3 + H2SO4  CaSO4 + CO2 + H2O (3) 2Na + 2H2O  2NaOH + H2 (4) Cu(OH)2 + 2HCl  CuCl2 + 2H2O

Discussion

5537.	Can [Pt(NH3)(H20)Cl2] show solvate isomerism? What would be it's isomeris?
Answer» Can [Pt(NH3)(H20)Cl2] show solvate isomerism? What would be it's isomeris?

Discussion

5538.	From which of the following are coal and petroleum obtained?
Answer» From which of the following are coal and petroleum obtained?

Discussion

5539.	49.The work done when two moles of an ideal gas is compressed from a volume of 5m3 to 1dm3 at 300K, under a pressure of 100kpa is
Answer» 49.The work done when two moles of an ideal gas is compressed from a volume of 5m3 to 1dm3 at 300K, under a pressure of 100kpa is

Discussion

5540.	A hydrocarbon in which a bromine atom is attached to an ethyl group can be named as:
Answer» A hydrocarbon in which a bromine atom is attached to an ethyl group can be named as:

Discussion

5541.	Question 25.Match the chemical substances given in Column I with their appropriate application given in Column II.(a) A - (2) B - (1) C - (4) D - (3)(b) A - (3) B - (2) C - (4) D - (1)(c) A - (3) B - (4) C - (1) D - (2)(a) A - (2) B - (4) C - (1) D - (3)
Answer» Question 25. Match the chemical substances given in Column I with their appropriate application given in Column II. (a) A - (2) B - (1) C - (4) D - (3) (b) A - (3) B - (2) C - (4) D - (1) (c) A - (3) B - (4) C - (1) D - (2) (a) A - (2) B - (4) C - (1) D - (3)

Discussion

5542.	In using sulphuric acid to prepare other acids, as mentioned above, which property of sulphuric acid is used?
Answer» In using sulphuric acid to prepare other acids, as mentioned above, which property of sulphuric acid is used?

Discussion

5543.	What are degenerate orbitals?
Answer» What are degenerate orbitals?

Discussion

5544.	47. Is it possible to balance disproportionation redox reaction by oxidation number method?
Answer» 47. Is it possible to balance disproportionation redox reaction by oxidation number method?

Discussion

5545.	hydration reaction through markovnikov and antimarkovnikov rule of alken
Answer» hydration reaction through markovnikov and antimarkovnikov rule of alken

Discussion

5546.	bond order of co+cause according to me it should be 2.5
Answer» bond order of co+ cause according to me it should be 2.5

Discussion

5547.	In Daniel cell, oxidation takes place at
Answer» In Daniel cell, oxidation takes place at

Discussion

5548.	Zinc sulphate contains 22.65% Zn and 43.9% H20. If the law of constant proportions is true, then the mass of zinc required to give 40g crystal will be?
Answer» Zinc sulphate contains 22.65% Zn and 43.9% H20. If the law of constant proportions is true, then the mass of zinc required to give 40g crystal will be?

Discussion

5549.	what is liptons and mesons?
Answer» what is liptons and mesons?

Discussion

5550.	a metal m of atomic weight 54.94 has a density of 7.42g/cc.calculate the apparent volume occupied by one atom of the metal
Answer» a metal m of atomic weight 54.94 has a density of 7.42g/cc. calculate the apparent volume occupied by one atom of the metal

Discussion

Explore topic-wise InterviewSolutions in .

164% Most stable carbocation is4(a) CH3- CH2(b) CH3-CH CH3(c) C(CH3)3(d) C6H5-CH2 (BHU)

Calculate the pH of the mixture : 8 g of NaOH +680 mL of 1 M HCl+10 mL of H2SO4, (specific gravity 1.2, 49% H2SO4 by mass). The total volume of the solution was made to 1 L with water:

(a) Name two fertilizers manufactured from ammonia.(b) Write an equation for the reaction to prepare one fertilizer from ammonia.

What happens to the rate of a reaction when the concentration of reactant is increased?

Raghav was performing an experiment. He observed that 2 gm of lead nitrate decomposes to form 2 gm of lead oxide. Find the mass of lead oxide formed by the decomposition of 500 gm of lead nitrate if only 80% of lead nitrate is pure.

The mole fraction of solvent in a solution having 6 moles of sugar dissolved in 18 moles of solvent is

Benzene with NO2 name??

Which group does Hydrogen belong to?

Metal + Acid → ? + ?

Is there any tricks to memorize the whole periodic table with atomic numbers and valencies?

Find the structure of Picric acid:

If an atom contains one electron and one proton, will it carry any charge or not?

Which property of copper and aluminium makes them suitable: (a) for making cooking utensils and boilers? (b) for making electric wires?

Which of the following is/are chain isomer(s) of hexane?

An oleum sample was labelled as 110H2SO4. if 8 gram of H2O was added in 200 gram of Oleum sample then find out volume of SO3 at 3 ATM pressure and 27^°C temperature that will remain in solution.

(a) Give one example, with an equation, of the displacement of hydrogen by a metal from an acid. (b) Name two metals (other than zinc and iron) which can displace hydrogen from dilute hydrochloric acid?

In periodic table which is the most A. Metallic element B. Non metallic element Also state the reason.

5 The amount of rotation of plane of polarised light does not depend upon 1. the nature of the light beam 2. the specific rotation 3. the number of asymmetric carbon atoms in the molecule of a substance 4. the number of molecules

Assertion: Group 18 elements do not combine with any other elements. Reason: All the elements of group 18 have a stable configuration.

Explain the following:(i) Ethene and ethyne burn with a sooty luminous flame.(ii) Ethane does not undergo addition reactions.(iii) Ethyne is used for welding and cutting metals.

Let us take the example of Bismuth. It's atomic number is 83 . Then how do we identify whether its atomic sixe increases or decreases?

A drop of olive oil of radius 0.25mm spreads into a circular film of radius 5cm on the water surface. Estimate the thickness of the film

Functional isomer of CH3−CH2−OH is:

Neon gas of a given mass expand isothermally to double volume. What should be the further fractional decrease in pressure, so that the gas when adiabatically compressed from that state reaches the original state

If an atom is sharing its 8 valence electrons with another atom, then:

What are lone pairs of electrons ?

bigger size of atoms is vali3d fo r elements till 20 only?

What is sewage? How is sewage disposed of?

P is a thin metal plate between plates of a PPC . What is the capacitance now ?

What is ment by Amphoteric ?

Volume occupied by 24 g O2(g) at 0.1 atm pressureand 27°C temperature is (Assume ideal behaviour)(R = 0.08 L atm mol–1 K–1)

One of the following is not a consumer. This one is : (a) giraffe (b) antelope (c) algae (d) alligator

34. A direct current deposits 54 g of silver during the electrolysis the same quantity of electricity would deposit aluminum from aluminium chloride in molten state equal to

47. If r is the radius of the first orbit, the radius of nth orbit of H atom is given by

Which of the following is redox reaction? (1) AgNO3 + NaCl  AgCl + NaNO3 (2) CaCO3 + H2SO4  CaSO4 + CO2 + H2O (3) 2Na + 2H2O  2NaOH + H2 (4) Cu(OH)2 + 2HCl  CuCl2 + 2H2O

Can [Pt(NH3)(H20)Cl2] show solvate isomerism? What would be it's isomeris?

From which of the following are coal and petroleum obtained?

49.The work done when two moles of an ideal gas is compressed from a volume of 5m3 to 1dm3 at 300K, under a pressure of 100kpa is

A hydrocarbon in which a bromine atom is attached to an ethyl group can be named as:

Question 25.Match the chemical substances given in Column I with their appropriate application given in Column II.(a) A - (2) B - (1) C - (4) D - (3)(b) A - (3) B - (2) C - (4) D - (1)(c) A - (3) B - (4) C - (1) D - (2)(a) A - (2) B - (4) C - (1) D - (3)

In using sulphuric acid to prepare other acids, as mentioned above, which property of sulphuric acid is used?

What are degenerate orbitals?

47. Is it possible to balance disproportionation redox reaction by oxidation number method?

hydration reaction through markovnikov and antimarkovnikov rule of alken

bond order of co+cause according to me it should be 2.5

In Daniel cell, oxidation takes place at

Zinc sulphate contains 22.65% Zn and 43.9% H20. If the law of constant proportions is true, then the mass of zinc required to give 40g crystal will be?

what is liptons and mesons?

a metal m of atomic weight 54.94 has a density of 7.42g/cc.calculate the apparent volume occupied by one atom of the metal