46295 + Interview Questions in Chemistry

1.	The molecule with the highest bond order among CO, CN¯, NO and dioxygen is
Answer» The molecule with the highest bond order among CO, CN¯, NO and dioxygen is

Discussion

2.	How many positional isomers are possible for methylcyclopen†an amine
Answer» How many positional isomers are possible for methylcyclopen†an amine

Discussion

3.	11. WHICH OF THE THREE IS MOST STABLE:: 1. ETHENE 2. PROPENE 3. BUTENE
Answer» 11. WHICH OF THE THREE IS MOST STABLE:: 1. ETHENE 2. PROPENE 3. BUTENE

Discussion

4.	In which of the following cases, the reaction goes farthest to completion?
Answer» In which of the following cases, the reaction goes farthest to completion?

Discussion

5.	Select the incorrect option for the following statements. (a) bimolecular elimination of alkyl halides is a stereo specific reaction (b) inner SN2 reaction a single isomer is the only product (c) n-propyl alcohol dehydrates in strongly basic conditions by E1cB mechanism (d) 3-hydroxypropanal dehydrates in strongly basic conditions by E1cB mechanism
Answer» Select the incorrect option for the following statements. (a) bimolecular elimination of alkyl halides is a stereo specific reaction (b) inner SN2 reaction a single isomer is the only product (c) n-propyl alcohol dehydrates in strongly basic conditions by E1cB mechanism (d) 3-hydroxypropanal dehydrates in strongly basic conditions by E1cB mechanism

Discussion

6.	why Benzylamine is more basic than N-Methylamine
Answer» why Benzylamine is more basic than N-Methylamine

Discussion

7.	How to calculate n factor while calculating normality?
Answer» How to calculate n factor while calculating normality?

Discussion

8.	29. Explain the ideal solution in such condition
Answer» 29. Explain the ideal solution in such condition

Discussion

9.	38. On boiling [H+] of water. 1.Increases. 2.Decreases. 3.Remain same. 4.Not predictable
Answer» 38. On boiling [H+] of water. 1.Increases. 2.Decreases. 3.Remain same. 4.Not predictable

Discussion

10.	Write down the characteristics of images formed by plane mirrors.
Answer» Write down the characteristics of images formed by plane mirrors.

Discussion

11.	F(s) is the Laplace transform of the function f(t)=2t2e−t. Then F(1) is (correct to two decimal places.)0.5
Answer» F(s) is the Laplace transform of the function $f (t) = 2 t^{2} e^{- t}$ . Then F(1) is (correct to two decimal places.) 0.5

Discussion

12.	The compound which on aqueous electrolysis liberates carbon dioxide at the anode and acetylene is:
Answer» The compound which on aqueous electrolysis liberates carbon dioxide at the anode and acetylene is:

Discussion

13.	What is the ratio of masses of electron and proton?
Answer» What is the ratio of masses of electron and proton?

Discussion

14.	a fish lying at a distance of 2 m below water surface observe a bird at a distance of 8 m vertically above itself. the actual distance between bird and fish is
Answer» a fish lying at a distance of 2 m below water surface observe a bird at a distance of 8 m vertically above itself. the actual distance between bird and fish is

Discussion

15.	Which of the following isomeric heptanes can yieldseven different monochlorinated products uponfree radical chlorination?(a) 2,2-Dimethylpentane(b) 2-Methylhexane(c) 3-Methylhexane(d) 2,4-Dimethylpentane
Answer» Which of the following isomeric heptanes can yieldseven different monochlorinated products uponfree radical chlorination?(a) 2,2-Dimethylpentane(b) 2-Methylhexane(c) 3-Methylhexane(d) 2,4-Dimethylpentane

Discussion

16.	Series of organic functional groups used in nomenclature of organic compounds including functional groups such as azide, cyclic ether, sulphonic acid,etc
Answer» Series of organic functional groups used in nomenclature of organic compounds including functional groups such as azide, cyclic ether, sulphonic acid,etc

Discussion

17.	32. If the momentum of an electron is changed by p, then the debroglie wavelength associated with it changes by 0.5%. The initial momentum of electron will be
Answer» 32. If the momentum of an electron is changed by p, then the debroglie wavelength associated with it changes by 0.5%. The initial momentum of electron will be

Discussion

18.	Which of the following compounds exhibits Schottky defect?
Answer» Which of the following compounds exhibits Schottky defect?

Discussion

19.	At a certaintemperature and total pressure of 105 Pa, iodine vapourcontains 40% by volume of I atomsCalculate Kpfor the equilibrium.
Answer» At a certain temperature and total pressure of 10⁵Pa, iodine vapour contains 40% by volume of I atoms Calculate K_pfor the equilibrium.

19.

At a certaintemperature and total pressure of 105 Pa, iodine vapourcontains 40% by volume of I atomsCalculate Kpfor the equilibrium.

Answer»

At a certain
temperature and total pressure of 10⁵Pa, iodine vapour
contains 40% by volume of I atoms

Calculate K_pfor the equilibrium.

Discussion

20.	Propanal can be converted into 1–propanol by:
Answer» Propanal can be converted into 1–propanol by:

Discussion

21.	What is meant by vector law?
Answer» What is meant by vector law?

Discussion

22.	Bond order of C – O in CO_3^{2-} 1. 1 2. 1.33 3 1.5 4.2
Answer» Bond order of C – O in CO_3^{2-} 1. 1 2. 1.33 3 1.5 4.2

Discussion

23.	The major product obtained from E2 - elimination of 3-bromo-2-fluoropentane is :
Answer» The major product obtained from $E 2$ - elimination of 3-bromo-2-fluoropentane is :

Discussion

24.	If we have a pure Na2SO4.5H2O sample and it contains 2.2×1010 electrons, the mass of the sample is x×10−14 g. x is
Answer» If we have a pure $N a_{2} S O_{4} .5 H_{2} O$ sample and it contains $2.2 \times 10^{10}$ electrons, the mass of the sample is $x \times 10^{- 14} g$ . x is

Discussion

25.	32. Identify the compound that exhibit tautomerism?? (1) Phenol (2)2 butene (3)lactic acid (4) 2 Pentanone
Answer» 32. Identify the compound that exhibit tautomerism?? (1) Phenol (2)2 butene (3)lactic acid (4) 2 Pentanone

Discussion

26.	In the reaction,CH3COCH3(g)⇌CH3CH3 (g)+CO(g)The initial pressure of CH3CO CH3 (g) is 150 mm Hg and at equilibrium the mole fraction of CO is 13 then the value of Kp is:
Answer» In the reaction, $C H_{3} C O C H_{3_{(} g)} ⇌ C H_{3} C H_{3 (g)} + C O_{(g)}$ The initial pressure of $C H_{3} C O$ $C H_{3 (g)}$ is $150 m m H g$ and at equilibrium the mole fraction of $C O$ is $\frac{1}{3}$ then the value of $K_{p}$ is:

Discussion

27.	0.01 mole of mehane and 0.96 g of oxygen were enclosed in a flask maintained at a temperature 300k.The pressure inside the flask was found to be 101325 nm.Calculate the volume of the flask.Also tell what is the partial pressure of each gas?
Answer» 0.01 mole of mehane and 0.96 g of oxygen were enclosed in a flask maintained at a temperature 300k.The pressure inside the flask was found to be 101325 nm.Calculate the volume of the flask.Also tell what is the partial pressure of each gas?

Discussion

28.	For the reaction A(g)⇌B(g)at 495K,ΔrGo=−9.478 kJmol−1. If we start reaction in a closed container at 495 K with 22 millimoles of A, the amount of B is the equilibrium mixture is .....millimoles. (Round off to the Nearest integer). [R8.314Jmol−1K−1;]~ln10=2.303]
Answer» For the reaction $A (g) ⇌ B (g) a t 495 K, Δ r G^{o} = - 9.478 k J m o l^{- 1}$ . If we start reaction in a closed container at 495 K with 22 millimoles of A, the amount of B is the equilibrium mixture is .....millimoles. (Round off to the Nearest integer). [R $8.314 J m o l^{- 1} K^{- 1};$ ]~ln10=2.303]

Discussion

29.	Which has the highest bond energy
Answer» Which has the highest bond energy

Discussion

30.	Why 4 membered ring is not stable
Answer» Why 4 membered ring is not stable

Discussion

31.	In a mixture He and SO2(g) are present in the mole ratio 2:1 at a total pressure of 6 atm.Determine the relative rate of diffusion of He and SO2(g).
Answer» In a mixture He and SO2(g) are present in the mole ratio 2:1 at a total pressure of 6 atm.Determine the relative rate of diffusion of He and SO2(g).

Discussion

32.	NaClO3 is used even in spacecrafts to produce O2. The daily consumption of pure O2 by a person is 492 L at 1 atm and 300 K. How much amount of NaClO3 ingrams, is required to produce O2 for the daily consumption of a person at STP?NaClO3(s)+Fe(s)→O2(g)+NaC1(s)+FeO(s)
Answer» $N a C l O_{3}$ is used even in spacecrafts to produce $O_{2}$ . The daily consumption of pure $O_{2}$ by a person is 492 L at $1 a t m$ and $300 K$ . How much amount of $N a C l O_{3}$ in grams, is required to produce $O_{2}$ for the daily consumption of a person at STP? $N a C l O_{3} (s) + F e (s) \to O_{2} (g) + N a C 1 (s) + F e O (s)$

Discussion

33.	100ml of 3 Mol H2SO4 reacts with 100ml of 3 Mol NaOH . Enthqlpy of neutralization of reaction will be
Answer» 100ml of 3 Mol H2SO4 reacts with 100ml of 3 Mol NaOH . Enthqlpy of neutralization of reaction will be

Discussion

34.	Which among the following is least soluble?
Answer» Which among the following is least soluble?

Discussion

35.	Assertion- CO2 is resonance stabilized molecule. Reason- Bond length of C-O in CO2 is intermediate of single and double Bond length.
Answer» Assertion- CO2 is resonance stabilized molecule. Reason- Bond length of C-O in CO2 is intermediate of single and double Bond length.

Discussion

36.	The radius of hydrogen in ground state is 0.53 angstrom in normal state of radius of Lithium 2 + in ground state will be
Answer» The radius of hydrogen in ground state is 0.53 angstrom in normal state of radius of Lithium 2 + in ground state will be

Discussion

37.	12. Two moles of N2 and two moles of H2 are taken in aclosed vessel of 5 litres capacity and suitableconditions are provided for the reaction. When theequilibrium is reached, it is found that a half mole of Nis used up. The equilibrium concentration of NH3 is (1) 0.3(2) 0.4(4) 0.1(3) 0.2
Answer» 12. Two moles of N2 and two moles of H2 are taken in aclosed vessel of 5 litres capacity and suitableconditions are provided for the reaction. When theequilibrium is reached, it is found that a half mole of Nis used up. The equilibrium concentration of NH3 is (1) 0.3(2) 0.4(4) 0.1(3) 0.2

Discussion

38.	Which mixture of the solutions will lead to the formation of negatively charged colloidal \lbrack Ag\rbrack I^- sol.? 1)50 mL of 1M AgNO3 +50 mL of 2M KI 2)50 mL of 2M\:AgNO3 +50 mL of 1.5M KI 3)50 mL of 0.1 M AgNO3 +50 mL of0.1M KI 4)50mL of1M AgNO3 +50 mL of 1.5 M KI
Answer» Which mixture of the solutions will lead to the formation of negatively charged colloidal \lbrack Ag\rbrack I^- sol.? 1)50 mL of 1M AgNO3 +50 mL of 2M KI 2)50 mL of 2M\:AgNO3 +50 mL of 1.5M KI 3)50 mL of 0.1 M AgNO3 +50 mL of0.1M KI 4)50mL of1M AgNO3 +50 mL of 1.5 M KI

Discussion

39.	Normality of 0.1MH3PO3 is
Answer» Normality of 0.1MH3PO3 is

Discussion

40.	The IUPAC name ofCH2−CH2−CH\|CH2\|CH3−O\|\|C−O−CH3 is
Answer» The IUPAC name of $C H_{2} - C H_{2} - C H \| C H_{2} \| C H_{3} - O \| \| C - O - C H_{3}$ is

40.

The IUPAC name ofCH2−CH2−CH|CH2|CH3−O||C−O−CH3 is

Answer»

The IUPAC name of

$C H_{2} - C H_{2} - C H | C H_{2} | C H_{3} - O | | C - O - C H_{3}$ is

Discussion

41.	at noon sun appears white as , which option is correcta.] light is least scattered b.] all colors of white light is scatteredc.] blue color is scattered mostd.] red color is scattered most
Answer» at noon sun appears white as , which option is correct a.] light is least scattered b.] all colors of white light is scattered c.] blue color is scattered most d.] red color is scattered most

Discussion

42.	the pH of a solution obtained by dissolving 0.1 mole of an acid HA in 100ml of the aqueous solution was found to be 3.0.calculate the dissociation constant of the acid.
Answer» the pH of a solution obtained by dissolving 0.1 mole of an acid HA in 100ml of the aqueous solution was found to be 3.0.calculate the dissociation constant of the acid.

Discussion

43.	2 g atom of A reacts with 2 g molecules of B_4 according to following reaction 2A_2 (g) + 3B_4(g)→4C
Answer» 2 g atom of A reacts with 2 g molecules of B_4 according to following reaction 2A_2 (g) + 3B_4(g)→4C

Discussion

44.	Find the change in internal energy of 60 g of Argon gas when its change in temperature is 200 K. (Given degree of freedom of argon is 3 and its molar mass = 40 g/mole)
Answer» Find the change in internal energy of 60 g of Argon gas when its change in temperature is 200 K. (Given degree of freedom of argon is 3 and its molar mass = 40 g/mole)

Discussion

45.	17. 1-butyne on oxIdation with hot alkaline KMnO4 would yield which of the following as end product? 1. CH3CH2CH2COOH 2. CH3CH2COOH 3. CH3CH2COOH + CO2 + H2O 4. CH3CH2COOH + HCOOH
Answer» 17. 1-butyne on oxIdation with hot alkaline KMnO4 would yield which of the following as end product? 1. CH3CH2CH2COOH 2. CH3CH2COOH 3. CH3CH2COOH + CO2 + H2O 4. CH3CH2COOH + HCOOH

Discussion

46.	what is the normality of HNO3 solution containing 6.3g/lit of the solution?
Answer» what is the normality of HNO3 solution containing 6.3g/lit of the solution?

Discussion

47.	The de-Broglie wavelength associated with an electron and a proton were calculated by accelerating them through same potential of 100 V. What should nearly be the ratio of their wavelengths? (mp=1.00727u, me=0.00055u)
Answer» The de-Broglie wavelength associated with an electron and a proton were calculated by accelerating them through same potential of $100 V$ . What should nearly be the ratio of their wavelengths? $(m_{p} = 1.00727 u, m_{e} = 0.00055 u)$

Discussion

48.	Do mesomeric effect depend on distance?
Answer» Do mesomeric effect depend on distance?

Discussion

49.	Which among the following is a transition metal ?
Answer» Which among the following is a transition metal ?

Discussion

50.	among NaOH and NaCH3 which one is the strong bronstead bas
Answer» among NaOH and NaCH3 which one is the strong bronstead bas

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The molecule with the highest bond order among CO, CN¯, NO and dioxygen is

How many positional isomers are possible for methylcyclopen†an amine

11. WHICH OF THE THREE IS MOST STABLE:: 1. ETHENE 2. PROPENE 3. BUTENE

In which of the following cases, the reaction goes farthest to completion?

why Benzylamine is more basic than N-Methylamine

How to calculate n factor while calculating normality?

29. Explain the ideal solution in such condition

38. On boiling [H+] of water. 1.Increases. 2.Decreases. 3.Remain same. 4.Not predictable

Write down the characteristics of images formed by plane mirrors.

F(s) is the Laplace transform of the function f(t)=2t2e−t. Then F(1) is (correct to two decimal places.)0.5

The compound which on aqueous electrolysis liberates carbon dioxide at the anode and acetylene is:

What is the ratio of masses of electron and proton?

a fish lying at a distance of 2 m below water surface observe a bird at a distance of 8 m vertically above itself. the actual distance between bird and fish is

Which of the following isomeric heptanes can yieldseven different monochlorinated products uponfree radical chlorination?(a) 2,2-Dimethylpentane(b) 2-Methylhexane(c) 3-Methylhexane(d) 2,4-Dimethylpentane

Series of organic functional groups used in nomenclature of organic compounds including functional groups such as azide, cyclic ether, sulphonic acid,etc

32. If the momentum of an electron is changed by p, then the debroglie wavelength associated with it changes by 0.5%. The initial momentum of electron will be

Which of the following compounds exhibits Schottky defect?

At a certaintemperature and total pressure of 105 Pa, iodine vapourcontains 40% by volume of I atomsCalculate Kpfor the equilibrium.

Propanal can be converted into 1–propanol by:

What is meant by vector law?

Bond order of C – O in CO_3^{2-} 1. 1 2. 1.33 3 1.5 4.2

The major product obtained from E2 - elimination of 3-bromo-2-fluoropentane is :

If we have a pure Na2SO4.5H2O sample and it contains 2.2×1010 electrons, the mass of the sample is x×10−14 g. x is

32. Identify the compound that exhibit tautomerism?? (1) Phenol (2)2 butene (3)lactic acid (4) 2 Pentanone

In the reaction,CH3COCH3(g)⇌CH3CH3 (g)+CO(g)The initial pressure of CH3CO CH3 (g) is 150 mm Hg and at equilibrium the mole fraction of CO is 13 then the value of Kp is:

0.01 mole of mehane and 0.96 g of oxygen were enclosed in a flask maintained at a temperature 300k.The pressure inside the flask was found to be 101325 nm.Calculate the volume of the flask.Also tell what is the partial pressure of each gas?

For the reaction A(g)⇌B(g)at 495K,ΔrGo=−9.478 kJmol−1. If we start reaction in a closed container at 495 K with 22 millimoles of A, the amount of B is the equilibrium mixture is .....millimoles. (Round off to the Nearest integer). [R8.314Jmol−1K−1;]~ln10=2.303]

Which has the highest bond energy

Why 4 membered ring is not stable

In a mixture He and SO2(g) are present in the mole ratio 2:1 at a total pressure of 6 atm.Determine the relative rate of diffusion of He and SO2(g).

NaClO3 is used even in spacecrafts to produce O2. The daily consumption of pure O2 by a person is 492 L at 1 atm and 300 K. How much amount of NaClO3 ingrams, is required to produce O2 for the daily consumption of a person at STP?NaClO3(s)+Fe(s)→O2(g)+NaC1(s)+FeO(s)

100ml of 3 Mol H2SO4 reacts with 100ml of 3 Mol NaOH . Enthqlpy of neutralization of reaction will be

Which among the following is least soluble?

Assertion- CO2 is resonance stabilized molecule. Reason- Bond length of C-O in CO2 is intermediate of single and double Bond length.

The radius of hydrogen in ground state is 0.53 angstrom in normal state of radius of Lithium 2 + in ground state will be

12. Two moles of N2 and two moles of H2 are taken in aclosed vessel of 5 litres capacity and suitableconditions are provided for the reaction. When theequilibrium is reached, it is found that a half mole of Nis used up. The equilibrium concentration of NH3 is (1) 0.3(2) 0.4(4) 0.1(3) 0.2

Which mixture of the solutions will lead to the formation of negatively charged colloidal \lbrack Ag\rbrack I^- sol.? 1)50 mL of 1M AgNO3 +50 mL of 2M KI 2)50 mL of 2M\:AgNO3 +50 mL of 1.5M KI 3)50 mL of 0.1 M AgNO3 +50 mL of0.1M KI 4)50mL of1M AgNO3 +50 mL of 1.5 M KI

Normality of 0.1MH3PO3 is

The IUPAC name ofCH2−CH2−CH|CH2|CH3−O||C−O−CH3 is

at noon sun appears white as , which option is correcta.] light is least scattered b.] all colors of white light is scatteredc.] blue color is scattered mostd.] red color is scattered most

the pH of a solution obtained by dissolving 0.1 mole of an acid HA in 100ml of the aqueous solution was found to be 3.0.calculate the dissociation constant of the acid.

2 g atom of A reacts with 2 g molecules of B_4 according to following reaction 2A_2 (g) + 3B_4(g)→4C

Find the change in internal energy of 60 g of Argon gas when its change in temperature is 200 K. (Given degree of freedom of argon is 3 and its molar mass = 40 g/mole)

17. 1-butyne on oxIdation with hot alkaline KMnO4 would yield which of the following as end product? 1. CH3CH2CH2COOH 2. CH3CH2COOH 3. CH3CH2COOH + CO2 + H2O 4. CH3CH2COOH + HCOOH

what is the normality of HNO3 solution containing 6.3g/lit of the solution?

The de-Broglie wavelength associated with an electron and a proton were calculated by accelerating them through same potential of 100 V. What should nearly be the ratio of their wavelengths? (mp=1.00727u, me=0.00055u)

Do mesomeric effect depend on distance?

Which among the following is a transition metal ?

among NaOH and NaCH3 which one is the strong bronstead bas