10223 + Interview Questions in Chemistry Page 8 InterviewSolution

351.	What is true about the complex tetraammine zinc (II) ion ?
Answer» What is true about the complex tetraammine zinc (II) ion ?

Discussion

352.	Which compound is present in the drying tower through which ammonia is passed?
Answer» Which compound is present in the drying tower through which ammonia is passed?

Discussion

353.	Nitrogen on gaining three electrons is known as
Answer» Nitrogen on gaining three electrons is known as

Discussion

354.	1 L flask contains nitrogen along with a drop or two of water at 40∘C, the total pressure is 760 torr. If all the contents are transferred to another flask of 0.5 L at the same temperature, the pressure set up in the second flask will be (aqueous tension at 40∘C=55 torr)
Answer» 1 L flask contains nitrogen along with a drop or two of water at $40^{\circ} C$ , the total pressure is 760 torr. If all the contents are transferred to another flask of 0.5 L at the same temperature, the pressure set up in the second flask will be (aqueous tension at $40^{\circ} C = 55 t o r r)$

Discussion

355.	Which of the following order is correct with respect to the radius of the given species?
Answer» Which of the following order is correct with respect to the radius of the given species?

Discussion

356.	derive the expression for pressure of ideal gas at standard condition
Answer» derive the expression for pressure of ideal gas at standard condition

Discussion

357.	35. For an elementary gaseous reaction 3X+2Y to produce Z what would be change in rate of reaction if X is double and volume of Y us also double
Answer» 35. For an elementary gaseous reaction 3X+2Y to produce Z what would be change in rate of reaction if X is double and volume of Y us also double

Discussion

358.	How does the solubility of air in water change as the temperature increases?
Answer» How does the solubility of air in water change as the temperature increases?

Discussion

359.	What is homogeneous mixture?
Answer» What is homogeneous mixture?

Discussion

360.	Definition of adsorbate
Answer» Definition of adsorbate

Discussion

361.	If one oxygen molecule donates its electrons to the other oxygen molecule to form ozone (coordinate bond) won't the donor (oxygen) have less than 8 electrons in its valence shell?
Answer» If one oxygen molecule donates its electrons to the other oxygen molecule to form ozone (coordinate bond) won't the donor (oxygen) have less than 8 electrons in its valence shell?

Discussion

362.	Which is the correct order of rate of reactivity of metals to water?
Answer» Which is the correct order of rate of reactivity of metals to water?

Discussion

363.	A iron piece of 1kg is heavier or a cotton of 1kg is heavier? Explain
Answer» A iron piece of 1kg is heavier or a cotton of 1kg is heavier? Explain

Discussion

364.	An earthen pitcher loses 1g of water per minute due to evaporation. if the water equivalent of pitcher is 0.5 kg and the pitcher contains 9.5 kg of water calculate the time required for the water in the pitcher to cool to 28deg C from 30deg C . Neglect radiation effects
Answer» An earthen pitcher loses 1g of water per minute due to evaporation. if the water equivalent of pitcher is 0.5 kg and the pitcher contains 9.5 kg of water calculate the time required for the water in the pitcher to cool to 28deg C from 30deg C . Neglect radiation effects

Discussion

365.	Differentiate between :- Aqueous & Non aqueous solution
Answer» Differentiate between :- Aqueous & Non aqueous solution

365.

Differentiate between :- Aqueous & Non aqueous solution

Answer»

Differentiate between :-

Aqueous & Non aqueous solution

Discussion

366.	13. : Explain electrolysis.
Answer» 13. : Explain electrolysis.

Discussion

367.	The isotopic composition of a certain element X is 80% 24X, 10% 25X and 10% 26X. The relative-atomic mass of X is _______ .
Answer» The isotopic composition of a certain element X is 80% ²⁴X, 10% ²⁵X and 10% ²⁶X. The relative-atomic mass of X is _______ .

Discussion

368.	The number of lone pair of electrons present in2.56 g of orthorhombic sulphur will be(2) 0.16 N(1) 0.02 No(4) 0.08 N(3) 0.32 No
Answer» The number of lone pair of electrons present in2.56 g of orthorhombic sulphur will be(2) 0.16 N(1) 0.02 No(4) 0.08 N(3) 0.32 No

Discussion

369.	Dinitrogen and dihydrogen react with each other to produce ammonia according to the following chemical equation. N2 (g) + 3H2 (g) = 2NH3 (g) (i) Calculate the mass of ammonia produced if 2.00 × 10³ g dinitrogen reacts with 1.00×10³ g of dihydrogen. (i i) Will any of the two reactants remain unreacted? (i i i) If yes, which one and what would be its mass?
Answer» Dinitrogen and dihydrogen react with each other to produce ammonia according to the following chemical equation. N2 (g) + 3H2 (g) = 2NH3 (g) (i) Calculate the mass of ammonia produced if 2.00 × 10³ g dinitrogen reacts with 1.00×10³ g of dihydrogen. (i i) Will any of the two reactants remain unreacted? (i i i) If yes, which one and what would be its mass?

369.

Dinitrogen and dihydrogen react with each other to produce ammonia according to the following chemical equation. N2 (g) + 3H2 (g) = 2NH3 (g) (i) Calculate the mass of ammonia produced if 2.00 × 10³ g dinitrogen reacts with 1.00×10³ g of dihydrogen. (i i) Will any of the two reactants remain unreacted? (i i i) If yes, which one and what would be its mass?

Answer»

Dinitrogen and dihydrogen react with each other to produce ammonia according to the following chemical equation.

N2 (g) + 3H2 (g) = 2NH3 (g)

(i) Calculate the mass of ammonia produced if 2.00 × 10³ g dinitrogen reacts with 1.00×10³ g of dihydrogen.

(i i) Will any of the two reactants remain unreacted?

(i i i) If yes, which one and what would be its mass?

Discussion

370.	An electrically neutral coin of mass 3g is made up of pure copper. Find the magnitude of total charge on the coin?
Answer» An electrically neutral coin of mass 3g is made up of pure copper. Find the magnitude of total charge on the coin?

Discussion

371.	What happens to the temprature of water when it boils
Answer» What happens to the temprature of water when it boils

Discussion

372.	Using bohr's formula for energy quantization, the ionisation potential of the ground state of Li++ atoms is?
Answer» Using bohr's formula for energy quantization, the ionisation potential of the ground state of Li++ atoms is?

Discussion

373.	What if the atoms are in a rationalised form ?
Answer» What if the atoms are in a rationalised form ?

Discussion

374.	An open container of volume 3 L contains x moles of an ideal gas at 27°C. What fractions of molecule expelled out when gas is heated at 127°C?
Answer» An open container of volume 3 L contains x moles of an ideal gas at 27°C. What fractions of molecule expelled out when gas is heated at 127°C?

Discussion

375.	The smell of hot sizzling food reaches several meters away, but to get the smell from cold food, we have to go close. Which of the following supports this statement?
Answer» The smell of hot sizzling food reaches several meters away, but to get the smell from cold food, we have to go close. Which of the following supports this statement?

Discussion

376.	What happens when ethyl bromide is treated with Zinc and hydrochroric acid
Answer» What happens when ethyl bromide is treated with Zinc and hydrochroric acid

Discussion

377.	A proton and an α-particle enter a uniform magnetic field perpendicular with the same speed.If proton takes 20μ s to make 5 revolutions,then the periodic time for the α-particle would be (1)5μ s (2)8μ s (3)10μ s (4)16μ s
Answer» A proton and an α-particle enter a uniform magnetic field perpendicular with the same speed.If proton takes 20μ s to make 5 revolutions,then the periodic time for the α-particle would be (1)5μ s (2)8μ s (3)10μ s (4)16μ s

Discussion

378.	If one third of HI decomposed at a particular temperature. What is the value of Kc for 2HI<======> H2 + I2 is A) 1/16 B)1/4 C)1/6 D)1/2
Answer» If one third of HI decomposed at a particular temperature. What is the value of K_cfor 2HI<======> H₂ + I₂ is A) 1/16 B)1/4 C)1/6 D)1/2

378.

If one third of HI decomposed at a particular temperature. What is the value of Kc for 2HI<======> H2 + I2 is A) 1/16 B)1/4 C)1/6 D)1/2

Answer»

If one third of HI decomposed at a particular temperature. What is the value of K_cfor 2HI<======> H₂ + I₂ is

A) 1/16

B)1/4

C)1/6

D)1/2

Discussion

379.	Diffusion in solid rather of solid is more likely. What does this mean ? Note: Its mentioned in characteristics of diffusion
Answer» Diffusion in solid rather of solid is more likely. What does this mean ? Note: Its mentioned in characteristics of diffusion

Discussion

380.	Difference between atomic mass and atomic weight
Answer» Difference between atomic mass and atomic weight

Discussion

381.	Mole fraction of solute in 1 molal aqueaous NaoH solution is
Answer» Mole fraction of solute in 1 molal aqueaous NaoH solution is

Discussion

382.	The temperature 420C in Fahrenheit scale is
Answer» The temperature $42^{0} C$ in Fahrenheit scale is

Discussion

383.	A photoelectric material having work-function ϕ0 is illuminated with light of wavelength λ(λ<hcϕ0). The fastest photoelectron has a de-Broglie wavelength λd. A change in wavelength of the incident light by dλ, results in a change dλd in λd. Then, the ratio dλddλ is proportional to,
Answer» A photoelectric material having work-function $ϕ_{0}$ is illuminated with light of wavelength $λ (λ < \frac{h c}{ϕ_{0}})$ . The fastest photoelectron has a de-Broglie wavelength $λ_{d}$ . A change in wavelength of the incident light by $d λ$ , results in a change $d λ_{d}$ in $λ_{d}$ . Then, the ratio $\frac{d λ_{d}}{d λ}$ is proportional to,

Discussion

384.	A compound 4.07% hydrogen, 24.27% carbon and 71.65% chlorine. Its molar mass is 98.96 g. What are its emperical formula and molecular formula?
Answer» A compound 4.07% hydrogen, 24.27% carbon and 71.65% chlorine. Its molar mass is 98.96 g. What are its emperical formula and molecular formula?

Discussion

385.	Integrate 2sinx×cosxdx
Answer» Integrate 2sinx×cosxdx

Discussion

386.	How is global warming caused?
Answer» How is global warming caused?

Discussion

387.	64. The variation Of velocity of electron,energy of electron with principle quantum number.
Answer» 64. The variation Of velocity of electron,energy of electron with principle quantum number.

Discussion

388.	MX2 dissociates into M2+ and X− ions in an aqueous solution with a degree of dissociation of α of 0.5. The ratio of the observed depression of freezing point of the aqueous solution to the value of the depression of freezing point in the absence of ionic dissociation is:
Answer» $M X_{2}$ dissociates into $M^{2 +}$ and $X^{-}$ ions in an aqueous solution with a degree of dissociation of $α$ of $0.5$ . The ratio of the observed depression of freezing point of the aqueous solution to the value of the depression of freezing point in the absence of ionic dissociation is:

Discussion

389.	Sodium and oxygen combine to form two compounds of which one is Na2O. The percentage of sodium in the other compound is 59%. Find the formula of this compound.
Answer» Sodium and oxygen combine to form two compounds of which one is Na2O. The percentage of sodium in the other compound is 59%. Find the formula of this compound.

Discussion

390.	If the energy of an electron in 3rd Bohr orbit is -E, what is the energy of electron in the second Bohr orbit ?
Answer» If the energy of an electron in 3rd Bohr orbit is -E, what is the energy of electron in the second Bohr orbit ?

Discussion

391.	Which rays are originated when cathode rays strikes on hard metal surface?
Answer» Which rays are originated when cathode rays strikes on hard metal surface?

Discussion

392.	Which of the following considered as binary compound?
Answer» Which of the following considered as binary compound?

Discussion

393.	Air at sea level is dense, this is a practical implementation of:
Answer» Air at sea level is dense, this is a practical implementation of:

Discussion

394.	If the diameter of different nucl ei are in the ratio1:2,then their mass number are in the ratio
Answer» If the diameter of different nucl ei are in the ratio1:2,then their mass number are in the ratio

Discussion

395.	Due to which of the following phase change process water droplets are seen on the outer surface of a glass containing ice-cold water?
Answer» Due to which of the following phase change process water droplets are seen on the outer surface of a glass containing ice-cold water?

Discussion

396.	How many of the reagents listed below would give effervercence, when treated with propyne?(I) NaOH (II) CH3CH2ONa (III) NaH (IV) NaNH2 (V) NaHCO3 (VI) {(CH3)2CH}2NLi(VII) CH3CH2Li
Answer» How many of the reagents listed below would give effervercence, when treated with propyne? (I) $N a O H$ (II) $C H_{3} C H_{2} O N a$ (III) $N a H$ (IV) $N a N H_{2}$ (V) $N a H C O_{3}$ (VI) ${(C H_{3})_{2} C H}_{2} N L i$ (VII) $C H_{3} C H_{2} L i$

Discussion

397.	Why is there lattice vibration in diamond?
Answer» Why is there lattice vibration in diamond?

Discussion

398.	what will be the valency of oxygen molecul
Answer» what will be the valency of oxygen molecul

Discussion

399.	Question 27The heteroatoms present inCH3—CH2—O—CH2—CH2Cl are(i) oxygen(ii) carbon(iii) hydrogen(iv) chlorine(a) (i) and (ii)(b) (ii) and (iii)(c) (iii) and (iv)(d) (i) and (iv)
Answer» Question 27 The heteroatoms present in $C H_{3} — C H_{2} — O — C H_{2} — C H_{2} C l$ are (i) oxygen (ii) carbon (iii) hydrogen (iv) chlorine (a) (i) and (ii) (b) (ii) and (iii) (c) (iii) and (iv) (d) (i) and (iv)

Discussion

400.	WHEN A GAS IS COOLED DOWN WHY IS BEC FORMED? WHY NOT LIQUID OR SOLID?
Answer» WHEN A GAS IS COOLED DOWN WHY IS BEC FORMED? WHY NOT LIQUID OR SOLID?

Discussion

Explore topic-wise InterviewSolutions in .

What is true about the complex tetraammine zinc (II) ion ?

Which compound is present in the drying tower through which ammonia is passed?

Nitrogen on gaining three electrons is known as

1 L flask contains nitrogen along with a drop or two of water at 40∘C, the total pressure is 760 torr. If all the contents are transferred to another flask of 0.5 L at the same temperature, the pressure set up in the second flask will be (aqueous tension at 40∘C=55 torr)

Which of the following order is correct with respect to the radius of the given species?

derive the expression for pressure of ideal gas at standard condition

35. For an elementary gaseous reaction 3X+2Y to produce Z what would be change in rate of reaction if X is double and volume of Y us also double

How does the solubility of air in water change as the temperature increases?

What is homogeneous mixture?

Definition of adsorbate

If one oxygen molecule donates its electrons to the other oxygen molecule to form ozone (coordinate bond) won't the donor (oxygen) have less than 8 electrons in its valence shell?

Which is the correct order of rate of reactivity of metals to water?

A iron piece of 1kg is heavier or a cotton of 1kg is heavier? Explain

An earthen pitcher loses 1g of water per minute due to evaporation. if the water equivalent of pitcher is 0.5 kg and the pitcher contains 9.5 kg of water calculate the time required for the water in the pitcher to cool to 28deg C from 30deg C . Neglect radiation effects

Differentiate between :- Aqueous &amp; Non aqueous solution

13. : Explain electrolysis.

The isotopic composition of a certain element X is 80% 24X, 10% 25X and 10% 26X. The relative-atomic mass of X is _______ .

The number of lone pair of electrons present in2.56 g of orthorhombic sulphur will be(2) 0.16 N(1) 0.02 No(4) 0.08 N(3) 0.32 No

An electrically neutral coin of mass 3g is made up of pure copper. Find the magnitude of total charge on the coin?

What happens to the temprature of water when it boils

Using bohr's formula for energy quantization, the ionisation potential of the ground state of Li++ atoms is?

What if the atoms are in a rationalised form ?

An open container of volume 3 L contains x moles of an ideal gas at 27°C. What fractions of molecule expelled out when gas is heated at 127°C?

The smell of hot sizzling food reaches several meters away, but to get the smell from cold food, we have to go close. Which of the following supports this statement?

What happens when ethyl bromide is treated with Zinc and hydrochroric acid

A proton and an α-particle enter a uniform magnetic field perpendicular with the same speed.If proton takes 20μ s to make 5 revolutions,then the periodic time for the α-particle would be (1)5μ s (2)8μ s (3)10μ s (4)16μ s

If one third of HI decomposed at a particular temperature. What is the value of K​​​​​​c for 2HI&lt;======&gt; H​​​​​​2 + I​​​​​​2 is A) 1/16 B)1/4 C)1/6 D)1/2

Diffusion in solid rather of solid is more likely. What does this mean ? Note: Its mentioned in characteristics of diffusion

Difference between atomic mass and atomic weight

Mole fraction of solute in 1 molal aqueaous NaoH solution is

The temperature 420C in Fahrenheit scale is

A photoelectric material having work-function ϕ0 is illuminated with light of wavelength λ(λ&lt;hcϕ0). The fastest photoelectron has a de-Broglie wavelength λd. A change in wavelength of the incident light by dλ, results in a change dλd in λd. Then, the ratio dλddλ is proportional to,

A compound 4.07% hydrogen, 24.27% carbon and 71.65% chlorine. Its molar mass is 98.96 g. What are its emperical formula and molecular formula?

Integrate 2sinx×cosxdx

How is global warming caused?

64. The variation Of velocity of electron,energy of electron with principle quantum number.

MX2 dissociates into M2+ and X− ions in an aqueous solution with a degree of dissociation of α of 0.5. The ratio of the observed depression of freezing point of the aqueous solution to the value of the depression of freezing point in the absence of ionic dissociation is:

Sodium and oxygen combine to form two compounds of which one is Na2O. The percentage of sodium in the other compound is 59%. Find the formula of this compound.

If the energy of an electron in 3rd Bohr orbit is -E, what is the energy of electron in the second Bohr orbit ?

Which rays are originated when cathode rays strikes on hard metal surface?

Which of the following considered as binary compound?

Air at sea level is dense, this is a practical implementation of:

If the diameter of different nucl ei are in the ratio1:2,then their mass number are in the ratio

Due to which of the following phase change process water droplets are seen on the outer surface of a glass containing ice-cold water?

How many of the reagents listed below would give effervercence, when treated with propyne?(I) NaOH (II) CH3CH2ONa (III) NaH (IV) NaNH2 (V) NaHCO3 (VI) {(CH3)2CH}2NLi(VII) CH3CH2Li

Why is there lattice vibration in diamond?

what will be the valency of oxygen molecul

Question 27The heteroatoms present inCH3—CH2—O—CH2—CH2Cl are​​​​​​(i) oxygen(ii) carbon(iii) hydrogen(iv) chlorine(a) (i) and (ii)(b) (ii) and (iii)(c) (iii) and (iv)(d) (i) and (iv)

WHEN A GAS IS COOLED DOWN WHY IS BEC FORMED? WHY NOT LIQUID OR SOLID?

Differentiate between :- Aqueous & Non aqueous solution

If one third of HI decomposed at a particular temperature. What is the value of Kc for 2HI<======> H2 + I2 is A) 1/16 B)1/4 C)1/6 D)1/2

A photoelectric material having work-function ϕ0 is illuminated with light of wavelength λ(λ<hcϕ0). The fastest photoelectron has a de-Broglie wavelength λd. A change in wavelength of the incident light by dλ, results in a change dλd in λd. Then, the ratio dλddλ is proportional to,

Question 27The heteroatoms present inCH3—CH2—O—CH2—CH2Cl are(i) oxygen(ii) carbon(iii) hydrogen(iv) chlorine(a) (i) and (ii)(b) (ii) and (iii)(c) (iii) and (iv)(d) (i) and (iv)