46295 + Interview Questions in Chemistry Page 6 InterviewSolution

251.	If the concentration of the reactant is increased by X then what will be the value of the equilibrium constant ?
Answer» If the concentration of the reactant is increased by X then what will be the value of the equilibrium constant ?

Discussion

252.	what is the sequence of boiling point of alcohol, aldehyde, ketone, ether, carboxylic acid, amine and amide with proper reason?
Answer» what is the sequence of boiling point of alcohol, aldehyde, ketone, ether, carboxylic acid, amine and amide with proper reason?

Discussion

253.	Oxidation number of potassium in K2O,K2O2,KO2 respectively, are :
Answer» Oxidation number of potassium in $K_{2} O, K_{2} O_{2}, K O_{2}$ respectively, are :

Discussion

254.	Number of structural isomers possible for the molecular formula C4H11N is/are:
Answer» Number of structural isomers possible for the molecular formula $C_{4} H_{11} N$ is/are:

Discussion

255.	If A = {3, 5, 6, 9) and R is a relation in A defined as R = {(x, y) : x + y < 18), then R in roster form is ______ .
Answer» If A = {3, 5, 6, 9) and R is a relation in A defined as R = {(x, y) : x + y < 18), then R in roster form is ______ .

Discussion

256.	Q. P and Q are isomers Identify Q -
Answer» Q. P and Q are isomers Identify Q -

Discussion

257.	What will be the molarity of the solutoin containing 18.25 g of HCl gas in 500 g of water ? (a) 0.1 m (b) 1 M (c) 0.5 m (d) 1 m
Answer» What will be the molarity of the solutoin containing 18.25 g of HCl gas in 500 g of water ? (a) 0.1 m (b) 1 M (c) 0.5 m (d) 1 m

257.

What will be the molarity of the solutoin containing 18.25 g of HCl gas in 500 g of water ? (a) 0.1 m (b) 1 M (c) 0.5 m (d) 1 m

Answer»

What will be the molarity of the solutoin containing 18.25 g of HCl gas in 500 g of water ?

(a) 0.1 m (b) 1 M (c) 0.5 m (d) 1 m

Discussion

258.	QUESTION 2.41 Determine the osmotic pressure of a solution prepared by dissolving 25 mg of K2SO4 in 2L of water at 25∘C, assuming that it is completely dissociated.
Answer» QUESTION 2.41 Determine the osmotic pressure of a solution prepared by dissolving 25 mg of $K_{2} S O_{4}$ in 2L of water at $25^{\circ} C$ , assuming that it is completely dissociated.

258.

QUESTION 2.41 Determine the osmotic pressure of a solution prepared by dissolving 25 mg of K2SO4 in 2L of water at 25∘C, assuming that it is completely dissociated.

Answer»

QUESTION 2.41

Determine the osmotic pressure of a solution prepared by dissolving 25 mg of $K_{2} S O_{4}$ in 2L of water at $25^{\circ} C$ , assuming that it is completely dissociated.

Discussion

259.	How many fragments will be generated on digestion of a closed circular DNA molecule with a restriction enzyme having six recognition sites on true DNA ?
Answer» How many fragments will be generated on digestion of a closed circular DNA molecule with a restriction enzyme having six recognition sites on true DNA ?

Discussion

260.	In which of the following compounds Cl has the oxidation state of +1 ?
Answer» In which of the following compounds $C l$ has the oxidation state of $+ 1$ ?

Discussion

261.	When Na2S2O3.5H2O oxidised to Na2S4O6, calculate the equivalent mass of Na2S2O3.5H2O
Answer» When Na2S2O3.5H2O oxidised to Na2S4O6, calculate the equivalent mass of Na2S2O3.5H2O

Discussion

262.	Which of the following sets of reactions cannot give a carboxylic acid as the final product?
Answer» Which of the following sets of reactions cannot give a carboxylic acid as the final product?

Discussion

263.	1. What is Mutual inductance.What are the various formulas related to this topic?
Answer» 1. What is Mutual inductance.What are the various formulas related to this topic?

Discussion

264.	Gattermann reaction is given by:
Answer» Gattermann reaction is given by:

Discussion

265.	The solubility of Mg(OH)2 in water at 25∘C is 0.00912 g per litre. Find Ksp for Mg(OH)2 assuming complete ionization.
Answer» The solubility of $M g (O H)_{2}$ in water at $25^{\circ} C$ is $0.00912 g$ per litre. Find $K_{s p}$ for $M g (O H)_{2}$ assuming complete ionization.

Discussion

266.	8. Potassium ferricyanide produces on ionization 1) 2 ions 2) 1 ion 3) 3 ions 4) 4 ions
Answer» 8. Potassium ferricyanide produces on ionization 1) 2 ions 2) 1 ion 3) 3 ions 4) 4 ions

Discussion

267.	{At constant temperature vapour density of N}}_2{O}}_{4 }{is found to be 30. Calculate percent dissociation of N}}_2{O}}_4
Answer» {At constant temperature vapour density of N}}_2{O}}_{4 }{is found to be 30. Calculate percent dissociation of N}}_2{O}}_4

Discussion

268.	100 ml of 0.3 N HCl solution is mixed with 200 ml of 0.6 N H2SO4 solution what is the normality of H2SO4 in the final solution- (1) 0.9 (2) 0.6 (3) 0.7 (4) 0.4
Answer» 100 ml of 0.3 N HCl solution is mixed with 200 ml of 0.6 N H2SO4 solution what is the normality of H2SO4 in the final solution- (1) 0.9 (2) 0.6 (3) 0.7 (4) 0.4

Discussion

269.	Choose the correct option(s) for the following reaction sequence. Consider Q, R and S as major products.
Answer» Choose the correct option(s) for the following reaction sequence. Consider Q, R and S as major products.

Discussion

270.	One gram of Mg atoms in vapour phase absorbs 50 kJ of energy. Find the percentage composition of Mg2+ formed as a result of absorption of energy. IE1 and IE2 for Mg are 720 and 1000 kJ/mole respectively.(Given, atomic mass of Mg=24 u)
Answer» One gram of $M g$ atoms in vapour phase absorbs $50 kJ$ of energy. Find the percentage composition of $M g^{2 +}$ formed as a result of absorption of energy. $I E_{1}$ and $I E_{2}$ for $M g$ are $720$ and $1000 kJ/mole$ respectively. (Given, atomic mass of $M g = 24 u$ )

Discussion

271.	Define gay-lusac's law of combining volumes.
Answer» Define gay-lusac's law of combining volumes.

Discussion

272.	Which of the following is the structure of 4-ethylhex-2-yne?
Answer» Which of the following is the structure of 4-ethylhex-2-yne?

Discussion

273.	An organic compound contains 1.6% of oxygen atom. The minimum molecular mass of the compound is about:
Answer» An organic compound contains $1.6 %$ of oxygen atom. The minimum molecular mass of the compound is about:

Discussion

274.	Amplitude of shm x=3sinwt +4coswt+12cos(wt+sin^-1(4/5)) will be by phasor method?
Answer» Amplitude of shm x=3sinwt +4coswt+12cos(wt+sin^-1(4/5)) will be by phasor method?

Discussion

275.	7.Why P_{ext} is variable in reversible process but constant in irreversible process?
Answer» 7.Why P_{ext} is variable in reversible process but constant in irreversible process?

Discussion

276.	The addictive property of Narcotic drugs is mainly due to their ability to produce
Answer» The addictive property of Narcotic drugs is mainly due to their ability to produce

Discussion

277.	Which of the following dilute solutions have vant hoff factor equal to 3?(Assume complete ionisation)
Answer» Which of the following dilute solutions have vant hoff factor equal to 3? (Assume complete ionisation)

Discussion

278.	18. Ionisation of which of the following will be maximum in water --. 1) Picric acid (2) Formic acid (3) Acetic acid 4) Benzoic acid.
Answer» 18. Ionisation of which of the following will be maximum in water --. 1) Picric acid (2) Formic acid (3) Acetic acid 4) Benzoic acid.

Discussion

279.	Name the functional groups present in the following compounds:(a) CH3COCH2CH2CH2CH3(b) CH3CH2CH2COOH(c) CH3CH2CH2CH2CHO(d) CH3CH2OH
Answer» Name the functional groups present in the following compounds: (a) ${CH}_{3} {COCH}_{2} {CH}_{2} {CH}_{2} {CH}_{3}$ (b) ${CH}_{3} {CH}_{2} {CH}_{2} COOH$ (c) ${CH}_{3} {CH}_{2} {CH}_{2} {CH}_{2} CHO$ (d) ${CH}_{3} {CH}_{2} OH$

Discussion

280.	The compound AgF2 is an unstable compound. However, if formed, the compound acts as a very strong oxidizing agent. Why?
Answer» The compound AgF₂ is an unstable compound. However, if formed, the compound acts as a very strong oxidizing agent. Why?

Discussion

281.	A liquid confined inside as adiabatic container is suddenly taken from state 1 to state 2 by single stage process as shown, then choose the correct options(s)
Answer» A liquid confined inside as adiabatic container is suddenly taken from state 1 to state 2 by single stage process as shown, then choose the correct options(s)

Discussion

282.	Which of the following is true for the sum of degree of freedom of following molecules.Cl2, He, Ar, SO2, CS2
Answer» Which of the following is true for the sum of degree of freedom of following molecules. $C l_{2}$ , $H e$ , $A r$ , $S O_{2}$ , $C S_{2}$

Discussion

283.	According to Bohr theory, the angular momentum of electron in 5th orbit is
Answer» According to Bohr theory, the angular momentum of electron in $5^{t h}$ orbit is

Discussion

284.	What is controlled chain reaction and uncontrolled chain reaction explain by process
Answer» What is controlled chain reaction and uncontrolled chain reaction explain by process

Discussion

285.	25. What is the ratio of radii of first orbit of H , He+,Li2+
Answer» 25. What is the ratio of radii of first orbit of H , He+,Li2+

Discussion

286.	What is piezoelectric crystal
Answer» What is piezoelectric crystal

Discussion

287.	The cell potential (Ecell) of a reaction is related as ΔG=nF Ecell, where ΔG represents maximum useful electrical work. n = no. of moles of electrons exchanged during the reaction. For reversible cell reaction d(ΔG)=(ΔV)dp−(ΔS)dT At const. P, d(ΔG)=−(ΔS)dT At const. P, ΔG=ΔH−TΔS. (1) ∴ ΔG=ΔH+T(d(ΔG)ΔT)P. (2) (dEcelldT)p is known as temperature coefficient of the emf of the cell. At 300K, ΔH for the reaction Zn+2AgCl→ZnCl2+2Agis−218 kJ/mole while emf of the cell was 1.015V.(dEdT)p of the cell is
Answer» The cell potential $(E_{c e l l})$ of a reaction is related as $Δ G = n F E_{c e l l}$ , where $Δ G$ represents maximum useful electrical work. n = no. of moles of electrons exchanged during the reaction. For reversible cell reaction $d (Δ G) = (Δ V) d p - (Δ S) d T$ At const. P, $d (Δ G) = - (Δ S) d T$ At const. P, $Δ G = Δ H - T Δ S$ . (1) $∴ Δ G = Δ H + T {(\frac{d (Δ G)}{Δ T})}_{P}$ . (2) ${(\frac{d E_{c e l l}}{d T})}_{p}$ is known as temperature coefficient of the emf of the cell. At 300K, $Δ H$ for the reaction $Z n + 2 A g C l \to Z n C l_{2} + 2 A g i s - 218$ kJ/mole while emf of the cell was $1.015 V . {(\frac{d E}{d T})}_{p}$ of the cell is

Discussion

288.	The energy of a photon of wavelength λ is given by
Answer» The energy of a photon of wavelength $λ$ is given by

Discussion

289.	If PPc=x (reduced pressure), VVc=y (reduced volume) and TTc=z (reduced temperature), then,
Answer» If $\frac{P}{P_{c}} = x$ (reduced pressure), $\frac{V}{V_{c}} = y$ (reduced volume) and $\frac{T}{T_{c}} = z$ (reduced temperature), then,

Discussion

290.	How gases react in a fixed ratio by moles and also confirms to their reacting volume
Answer» How gases react in a fixed ratio by moles and also confirms to their reacting volume

Discussion

291.	Given the standard electrode potentials, K+/K = –2.93V, Ag+/Ag = 0.80V, Hg2+/Hg = 0.79V Mg2+/Mg = –2.37V. Cr3+/Cr = –0.74V Arrange these metals in their increasing order of reducing power.
Answer» Given the standard electrode potentials, K⁺/K = –2.93V, Ag⁺/Ag = 0.80V, Hg²⁺/Hg = 0.79V Mg²⁺/Mg = –2.37V. Cr³⁺/Cr = –0.74V Arrange these metals in their increasing order of reducing power.

291.

Given the standard electrode potentials, K+/K = –2.93V, Ag+/Ag = 0.80V, Hg2+/Hg = 0.79V Mg2+/Mg = –2.37V. Cr3+/Cr = –0.74V Arrange these metals in their increasing order of reducing power.

Answer»

Given the standard electrode potentials,

K⁺/K = –2.93V, Ag⁺/Ag = 0.80V,

Hg²⁺/Hg = 0.79V

Mg²⁺/Mg = –2.37V. Cr³⁺/Cr = –0.74V

Arrange these metals in their increasing order of reducing power.

Discussion

292.	10. Find charge on 54 gram of Al+ ion ?
Answer» 10. Find charge on 54 gram of Al+ ion ?

Discussion

293.	97.Which of the following caids forms lactide on heating with dilute acid ? (1) 3-hydroxy butanoic acid (2) 4-hydroxy butanoic acid (3)6-hydroxy hexanoic acid (4) 2-hydroxy propanoic acid
Answer» 97.Which of the following caids forms lactide on heating with dilute acid ? (1) 3-hydroxy butanoic acid (2) 4-hydroxy butanoic acid (3)6-hydroxy hexanoic acid (4) 2-hydroxy propanoic acid

Discussion

294.	mimimum dis†an ce between two tetrahedral voids if a is the edge length of the cube i
Answer» mimimum dis†an ce between two tetrahedral voids if a is the edge length of the cube i

Discussion

295.	Can accurate be precied
Answer» Can accurate be precied

Discussion

296.	The velocity of the electron in a certain bohrs orbit of hydrogen atom bears the ratio1:275 to the velocity of light. What is the quantum number n of the orbit
Answer» The velocity of the electron in a certain bohrs orbit of hydrogen atom bears the ratio1:275 to the velocity of light. What is the quantum number n of the orbit

Discussion

297.	Draw theresonance structures for the following compounds. Show the electronshift using curved-arrow notation.(a)C6H5OH (b) C6H5NO2 (c) CH3CH= CH – CHO(d)C6H5CHO (e) (f)
Answer» Draw the resonance structures for the following compounds. Show the electron shift using curved-arrow notation. (a) C₆H₅OH (b) C₆H₅NO₂ (c) CH₃CH = CH – CHO (d) C₆H₅CHO (e) (f)

297.

Draw theresonance structures for the following compounds. Show the electronshift using curved-arrow notation.(a)C6H5OH (b) C6H5NO2 (c) CH3CH= CH – CHO(d)C6H5CHO (e) (f)

Answer»

Draw the
resonance structures for the following compounds. Show the electron
shift using curved-arrow notation.

(a)
C₆H₅OH
(b) C₆H₅NO₂
(c) CH₃CH
= CH – CHO

(d)
C₆H₅CHO (e)
(f)

Discussion

298.	Predict the major product in the following reaction. C6H5−CH2CO2CH31. CH3MgBr (excess)−−−−−−−−−−−−−→2. H2O
Answer» Predict the major product in the following reaction. $C_{6} H_{5} - C H_{2} C O_{2} C H_{3} 1. C H_{3} M g B r (e x c e s s) - ------------ \to 2. H_{2} O$

Discussion

299.	Calculate the wavelength of the radiation which would cause the photodissociation of a chlorine molecule if the Cl−Cl bond energy is 240 kJ mol−1. Take h=6.6×10−34 J s,NA=6×1023
Answer» Calculate the wavelength of the radiation which would cause the photodissociation of a chlorine molecule if the $C l - C l$ bond energy is $240 {kJ mol}^{- 1}$ . Take $h = 6.6 \times 10^{- 34} J s, N_{A} = 6 \times 10^{23}$

Discussion

300.	What are the fundamental laws for finding the error
Answer» What are the fundamental laws for finding the error

Discussion

Explore topic-wise InterviewSolutions in .

If the concentration of the reactant is increased by X then what will be the value of the equilibrium constant ?

what is the sequence of boiling point of alcohol, aldehyde, ketone, ether, carboxylic acid, amine and amide with proper reason?

Oxidation number of potassium in K2O,K2O2,KO2 respectively, are :

Number of structural isomers possible for the molecular formula C4H11N is/are:

If A = {3, 5, 6, 9) and R is a relation in A defined as R = {(x, y) : x + y < 18), then R in roster form is ______ .

Q. P and Q are isomers Identify Q -

What will be the molarity of the solutoin containing 18.25 g of HCl gas in 500 g of water ? (a) 0.1 m (b) 1 M (c) 0.5 m (d) 1 m

QUESTION 2.41 Determine the osmotic pressure of a solution prepared by dissolving 25 mg of K2SO4 in 2L of water at 25∘C, assuming that it is completely dissociated.

How many fragments will be generated on digestion of a closed circular DNA molecule with a restriction enzyme having six recognition sites on true DNA ?

In which of the following compounds Cl has the oxidation state of +1 ?

When Na2S2O3.5H2O oxidised to Na2S4O6, calculate the equivalent mass of Na2S2O3.5H2O

Which of the following sets of reactions cannot give a carboxylic acid as the final product?

1. What is Mutual inductance.What are the various formulas related to this topic?

Gattermann reaction is given by:

The solubility of Mg(OH)2 in water at 25∘C is 0.00912 g per litre. Find Ksp for Mg(OH)2 assuming complete ionization.

8. Potassium ferricyanide produces on ionization 1) 2 ions 2) 1 ion 3) 3 ions 4) 4 ions

{At constant temperature vapour density of N}}_2{O}}_{4 }{is found to be 30. Calculate percent dissociation of N}}_2{O}}_4

100 ml of 0.3 N HCl solution is mixed with 200 ml of 0.6 N H2SO4 solution what is the normality of H2SO4 in the final solution- (1) 0.9 (2) 0.6 (3) 0.7 (4) 0.4

Choose the correct option(s) for the following reaction sequence. Consider Q, R and S as major products.

One gram of Mg atoms in vapour phase absorbs 50 kJ of energy. Find the percentage composition of Mg2+ formed as a result of absorption of energy. IE1 and IE2 for Mg are 720 and 1000 kJ/mole respectively.(Given, atomic mass of Mg=24 u)

Define gay-lusac's law of combining volumes.

Which of the following is the structure of 4-ethylhex-2-yne?

An organic compound contains 1.6% of oxygen atom. The minimum molecular mass of the compound is about:

Amplitude of shm x=3sinwt +4coswt+12cos(wt+sin^-1(4/5)) will be by phasor method?

7.Why P_{ext} is variable in reversible process but constant in irreversible process?

The addictive property of Narcotic drugs is mainly due to their ability to produce

Which of the following dilute solutions have vant hoff factor equal to 3?(Assume complete ionisation)

18. Ionisation of which of the following will be maximum in water --. 1) Picric acid (2) Formic acid (3) Acetic acid 4) Benzoic acid.

Name the functional groups present in the following compounds:(a) CH3COCH2CH2CH2CH3(b) CH3CH2CH2COOH(c) CH3CH2CH2CH2CHO(d) CH3CH2OH

The compound AgF2 is an unstable compound. However, if formed, the compound acts as a very strong oxidizing agent. Why?

A liquid confined inside as adiabatic container is suddenly taken from state 1 to state 2 by single stage process as shown, then choose the correct options(s)

Which of the following is true for the sum of degree of freedom of following molecules.Cl2, He, Ar, SO2, CS2

According to Bohr theory, the angular momentum of electron in 5th orbit is

What is controlled chain reaction and uncontrolled chain reaction explain by process

25. What is the ratio of radii of first orbit of H , He+,Li2+

What is piezoelectric crystal

The energy of a photon of wavelength λ is given by

If PPc=x (reduced pressure), VVc=y (reduced volume) and TTc=z (reduced temperature), then,

How gases react in a fixed ratio by moles and also confirms to their reacting volume

Given the standard electrode potentials, K+/K = –2.93V, Ag+/Ag = 0.80V, Hg2+/Hg = 0.79V Mg2+/Mg = –2.37V. Cr3+/Cr = –0.74V Arrange these metals in their increasing order of reducing power.

10. Find charge on 54 gram of Al+ ion ?

97.Which of the following caids forms lactide on heating with dilute acid ? (1) 3-hydroxy butanoic acid (2) 4-hydroxy butanoic acid (3)6-hydroxy hexanoic acid (4) 2-hydroxy propanoic acid

mimimum dis†an ce between two tetrahedral voids if a is the edge length of the cube i

Can accurate be precied

The velocity of the electron in a certain bohrs orbit of hydrogen atom bears the ratio1:275 to the velocity of light. What is the quantum number n of the orbit

Draw theresonance structures for the following compounds. Show the electronshift using curved-arrow notation.(a)C6H5OH (b) C6H5NO2 (c) CH3CH= CH – CHO(d)C6H5CHO (e) (f)

Predict the major product in the following reaction. C6H5−CH2CO2CH31. CH3MgBr (excess)−−−−−−−−−−−−−→2. H2O

Calculate the wavelength of the radiation which would cause the photodissociation of a chlorine molecule if the Cl−Cl bond energy is 240 kJ mol−1. Take h=6.6×10−34 J s,NA=6×1023

What are the fundamental laws for finding the error