46295 + Interview Questions in Chemistry

1.	Arrange the following oxides in the decreasing orders of their basic strength. I. Tl2O II. Al2O3 III. Tl2O3 IV. Ga2O3
Answer» Arrange the following oxides in the decreasing orders of their basic strength. $I . T l_{2} O$ $I I . A l_{2} O_{3}$ $I I I . T l_{2} O_{3}$ $I V . G a_{2} O_{3}$

Discussion

2.	If the velocity of the electron in first orbit of hydrogen atom is 2.18×106 m/s, what is its value in third orbit?
Answer» If the velocity of the electron in first orbit of hydrogen atom is $2.18 \times 10^{6} m/s$ , what is its value in third orbit?

Discussion

3.	(+) Glucose and (-) fructose can be differentiated by ?
Answer» (+) Glucose and (-) fructose can be differentiated by ?

Discussion

4.	The correct order of acidic strength is :
Answer» The correct order of acidic strength is :

Discussion

5.	A free particle with initial kinetic energy E and de Broglie wavelength lambda enters a region in which the potential energy is -V. The new de Broglie wavelength of the particle is?
Answer» A free particle with initial kinetic energy E and de Broglie wavelength lambda enters a region in which the potential energy is -V. The new de Broglie wavelength of the particle is?

Discussion

6.	The decreasing order of basicity of the following armines is:
Answer» The decreasing order of basicity of the following armines is:

Discussion

7.	ASSN 500 ml of 0.2 M KOH and 500 ml of 0.1 M HCl are mixed. The heat evolved is 57.1 kJ/mol .RSN Strong acid and strong base always releases 57.1 kJ of energy irrespective of its no. of moles.
Answer» ASSN 500 ml of 0.2 M KOH and 500 ml of 0.1 M HCl are mixed. The heat evolved is 57.1 kJ/mol . RSN Strong acid and strong base always releases 57.1 kJ of energy irrespective of its no. of moles.

Discussion

8.	If P, V, M, T and R are pressure, volume, molar mass, temperature and gas constant of gas, then for ideal gas the density is given by,
Answer» If $P, V, M, T a n d R$ are pressure, volume, molar mass, temperature and gas constant of gas, then for ideal gas the density is given by,

Discussion

9.	If I is the intensity of absorbed light and C is the concentration of AB for the photochemical process AB+hV→AB,then the rate of formation of AB is directly proportional to?
Answer» If I is the intensity of absorbed light and C is the concentration of AB for the photochemical process $A B + h V \to A B$ , then the rate of formation of AB is directly proportional to?

Discussion

10.	What is potencyand concentration?
Answer» What is potencyand concentration?

Discussion

11.	Why does NH3 form hydrogen bond but PH3 does not?
Answer» Why does NH₃ form hydrogen bond but PH₃ does not?

Discussion

12.	possible isomers of C2FClBrI ?? Why the fluorine atom is constant at one position only ?
Answer» possible isomers of C2FClBrI ?? Why the fluorine atom is constant at one position only ?

Discussion

13.	how does potential energy becomes -pEcostheta
Answer» how does potential energy becomes -pEcostheta

Discussion

14.	Which among the followingstatement is false[KCET (Med.) 2002]
Answer» Which among the following statement is false [KCET (Med.) 2002]

14.

Which among the followingstatement is false[KCET (Med.) 2002]

Answer»

Which among the following
statement is false

[KCET (Med.) 2002]

Discussion

15.	For the following bondcleavages, use curved-arrows to show the electron flow and classifyeach as homolysis or heterolysis. Identify reactive intermediateproduced as free radical, carbocation and carbanion.(a) (b) (c) (d)
Answer» For the following bond cleavages, use curved-arrows to show the electron flow and classify each as homolysis or heterolysis. Identify reactive intermediate produced as free radical, carbocation and carbanion. (a) (b) (c) (d)

15.

For the following bondcleavages, use curved-arrows to show the electron flow and classifyeach as homolysis or heterolysis. Identify reactive intermediateproduced as free radical, carbocation and carbanion.(a) (b) (c) (d)

Answer»

For the following bond
cleavages, use curved-arrows to show the electron flow and classify
each as homolysis or heterolysis. Identify reactive intermediate
produced as free radical, carbocation and carbanion.

(a)

(b)

(c)

(d)

Discussion

16.	Question 6 Which of the following has maximum number of atoms?(a) 18g of H2O(b) 18g of O2(c) 18g of CO2(d) 18g of CH4
Answer» Question 6 Which of the following has maximum number of atoms? (a) $18 g o f H_{2} O$ (b) $18 g o f O_{2}$ (c) $18 g o f C O_{2}$ (d) $18 g o f C H_{4}$

Discussion

17.	Which amonst the following will give a pleasant smell of ester when heated with ethanol and a small quantity of sulphuric acid?
Answer» Which amonst the following will give a pleasant smell of ester when heated with ethanol and a small quantity of sulphuric acid?

Discussion

18.	54. a� �piece� �of� � gold� �weighs� �10 g� �in� �air� �and� � 9� g� � in� � water .� �what� �is� � the� � volume� �of� � cavity?� �(� density� �of� � gold=� 19.3� g/cm3)
Answer» 54. a� �piece� �of� � gold� �weighs� �10 g� �in� �air� �and� � 9� g� � in� � water .� �what� �is� � the� � volume� �of� � cavity?� �(� density� �of� � gold=� 19.3� g/cm3)

Discussion

19.	90.engine has an efficiency of of 1/6.The temperature of sink is reducedby 62 ^° C,its efficiency is doubled .Temperature of source is? :
Answer» 90.engine has an efficiency of of 1/6.The temperature of sink is reducedby 62 ^° C,its efficiency is doubled .Temperature of source is? :

Discussion

20.	How many structural isomeric primary amines are possible for the formula C4H11N?
Answer» How many structural isomeric primary amines are possible for the formula $C_{4} H_{11} N$ ?

Discussion

21.	Which form is more stable among all these arrangements?
Answer» Which form is more stable among all these arrangements?

Discussion

22.	Completethe following reactions:(i) (ii) (iii) (iv)
Answer» Complete the following reactions: (i) (ii) (iii) (iv)

22.

Completethe following reactions:(i) (ii) (iii) (iv)

Answer»

Complete
the following reactions:

(i)

(ii)

(iii)

(iv)

Discussion

23.	Vapour density of PCl_{5 }at 400K is found to be 90.Degree of dissociation of PCl_{5 }will be (1) 15.8% (2) 13.6% (3) 14.25% (4) 90%
Answer» Vapour density of PCl_{5 }at 400K is found to be 90.Degree of dissociation of PCl_{5 }will be (1) 15.8% (2) 13.6% (3) 14.25% (4) 90%

Discussion

24.	1 mole of AgNO3 is mixed with 0.5 mole KCL in 5l of water a white ppt is formed calculate the ratio of mole% of each element in the formed ppt.
Answer» 1 mole of AgNO3 is mixed with 0.5 mole KCL in 5l of water a white ppt is formed calculate the ratio of mole% of each element in the formed ppt.

Discussion

25.	71 Which product is formed when But-2-yne is treated with NaNH2 & liqid NH3 ?
Answer» 71 Which product is formed when But-2-yne is treated with NaNH2 & liqid NH3 ?

Discussion

26.	How to number 9,10-dimethyl-1,2 benz anthracene?
Answer» How to number 9,10-dimethyl-1,2 benz anthracene?

Discussion

27.	What r next nearest neighbor.explain it for fcc bcc.how man C atoms r present in diamond unit cell.illustrate.
Answer» What r next nearest neighbor.explain it for fcc bcc.how man C atoms r present in diamond unit cell.illustrate.

Discussion

28.	How polarity can be related to reactivity
Answer» How polarity can be related to reactivity

Discussion

29.	Among NO2-,NO2+,NO3-, what is the order of bond length and bond angle
Answer» Among NO2-,NO2+,NO3-, what is the order of bond length and bond angle

Discussion

30.	A solution of urea (NH2-CO-NH2) in water. The Molarity of the 1.2g/cm³ dense solution is 3.00 mol/LFind it's molality
Answer» A solution of urea (NH2-CO-NH2) in water. The Molarity of the 1.2g/cm³ dense solution is 3.00 mol/L Find it's molality

Discussion

31.	find the work done in increasing the temperature of nitrogen at constant pressure from 37 degree Celsius to 337 degree Celsius Cp= 7 calorie per mole degree celsius in this process what is work done by the gas?
Answer» find the work done in increasing the temperature of nitrogen at constant pressure from 37 degree Celsius to 337 degree Celsius Cp= 7 calorie per mole degree celsius in this process what is work done by the gas?

Discussion

32.	An oil drop has 7.99 × 10−19 C charge. How many electrons does this oil drop has?
Answer» An oil drop has 7.99 $\times$ $10^{- 19}$ C charge. How many electrons does this oil drop has?

Discussion

33.	The formula of Blue Vitrol is :
Answer» The formula of Blue Vitrol is :

Discussion

34.	11. Bemzylamine and aniline can be distinguished by 1. HNO2 2. CHCl3/KOH 3. Br2 water 4. Schiffs reagent
Answer» 11. Bemzylamine and aniline can be distinguished by 1. HNO2 2. CHCl3/KOH 3. Br2 water 4. Schiffs reagent

Discussion

35.	With which of the given pairs 2 resembles
Answer» With which of the given pairs 2 resembles

Discussion

36.	How is 1-propoxypropane synthesised from propan-1-ol? Write mechanism of this reaction.
Answer» How is 1-propoxypropane synthesised from propan-1-ol? Write mechanism of this reaction.

Discussion

37.	The volume of CO2 evolved at STP on heating 50 gram of calcium carbonate
Answer» The volume of $C O_{2}$ evolved at STP on heating 50 gram of calcium carbonate

Discussion

38.	H2O(l)→H2(g)+12O2(g) ΔH=+890.36KJ/mole What is ΔH for formation of H2O(l) from its constituent elements?
Answer» $H_{2} O_{(l)} \to H_{2 (g)} + \frac{1}{2} O_{2 (g)} Δ H = + 890.36 K J / m o l e$ What is $Δ H$ for formation of $H_{2} O_{(l)}$ from its constituent elements?

Discussion

39.	In electrolysis of concentrated NaCl,what is product at anode and cathode?? Chemistry
Answer» In electrolysis of concentrated NaCl,what is product at anode and cathode?? Chemistry

Discussion

40.	Which of the following displacement reactions is not possible?
Answer» Which of the following displacement reactions is not possible?

Discussion

41.	The average atomic mass of Cl35 & Cl37 is 35.5. Then % abudance Cl35 of is
Answer» The average atomic mass of ${C l}^{35}$ & ${C l}^{37}$ is 35.5. Then % abudance ${C l}^{35}$ of is

Discussion

42.	the dimensional formula of (μ°ε°)^-1 is(
Answer» the dimensional formula of (μ°ε°)^-1 is(

Discussion

43.	Question 42Show diagrammatically the electron distributions in a sodium atom and a sodium ion and also give their atomic number.
Answer» Question 42 Show diagrammatically the electron distributions in a sodium atom and a sodium ion and also give their atomic number.

Discussion

44.	The normality of a solution that has 15 g equivalents of solute dissolved in 750 mL solution is .
Answer» The normality of a solution that has $15 g$ equivalents of solute dissolved in $750 m L$ solution is .

Discussion

45.	List the three major kinds of RNA and mention their function. [3]
Answer» List the three major kinds of RNA and mention their function. [3]

Discussion

46.	In the following reversible reaction 2SO2 + O2 ⇌ 2SO3 + QCal Most suitable condition for the higher production of SO3 is
Answer» In the following reversible reaction $2 S O_{2} + O_{2} ⇌ 2 S O_{3} + Q C a l$ Most suitable condition for the higher production of $S O_{3}$ is

46.

In the following reversible reaction 2SO2 + O2 ⇌ 2SO3 + QCal Most suitable condition for the higher production of SO3 is

Answer»

In the following reversible reaction $2 S O_{2} + O_{2} ⇌ 2 S O_{3} + Q C a l$

Most suitable condition for the higher production of $S O_{3}$ is

Discussion

47.	Which of the following molecule does not exhibit tautomerism?
Answer» Which of the following molecule does not exhibit tautomerism?

Discussion

48.	Which of the following explains light as both as a stream of particles and as a wave?
Answer» Which of the following explains light as both as a stream of particles and as a wave?

Discussion

49.	A B C D from cubic structure A at corners B at face C at centre D at edge in cubic unit cell if atom touching one of the 2fold 3fold 4fold what's is formula?
Answer» A B C D from cubic structure A at corners B at face C at centre D at edge in cubic unit cell if atom touching one of the 2fold 3fold 4fold what's is formula?

Discussion

50.	You have been given three amino acids in excess Phenylalanine (P) Glutamine (Q) Histidine (R)All three amino acids are put in a container which already contain some acid and excess of water. How many tripepetides are possible which contain three different amino acids?
Answer» You have been given three amino acids in excess Phenylalanine (P) Glutamine (Q) Histidine (R) All three amino acids are put in a container which already contain some acid and excess of water. How many tripepetides are possible which contain three different amino acids?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Arrange the following oxides in the decreasing orders of their basic strength. I. Tl2O II. Al2O3 III. Tl2O3 IV. Ga2O3

If the velocity of the electron in first orbit of hydrogen atom is 2.18×106 m/s, what is its value in third orbit?

(+) Glucose and (-) fructose can be differentiated by ?

The correct order of acidic strength is :

A free particle with initial kinetic energy E and de Broglie wavelength lambda enters a region in which the potential energy is -V. The new de Broglie wavelength of the particle is?

The decreasing order of basicity of the following armines is:

ASSN 500 ml of 0.2 M KOH and 500 ml of 0.1 M HCl are mixed. The heat evolved is 57.1 kJ/mol .RSN Strong acid and strong base always releases 57.1 kJ of energy irrespective of its no. of moles.

If P, V, M, T and R are pressure, volume, molar mass, temperature and gas constant of gas, then for ideal gas the density is given by,

If I is the intensity of absorbed light and C is the concentration of AB for the photochemical process AB+hV→AB,then the rate of formation of AB is directly proportional to?

What is potencyand concentration?

Why does NH3 form hydrogen bond but PH3 does not?

possible isomers of C2FClBrI ?? Why the fluorine atom is constant at one position only ?

how does potential energy becomes -pEcostheta

Which among the followingstatement is false[KCET (Med.) 2002]

For the following bondcleavages, use curved-arrows to show the electron flow and classifyeach as homolysis or heterolysis. Identify reactive intermediateproduced as free radical, carbocation and carbanion.(a) (b) (c) (d)

Question 6 Which of the following has maximum number of atoms?(a) 18g of H2O(b) 18g of O2(c) 18g of CO2(d) 18g of CH4

Which amonst the following will give a pleasant smell of ester when heated with ethanol and a small quantity of sulphuric acid?

54. a� �piece� �of� � gold� �weighs� �10 g� �in� �air� �and� � 9� g� � in� � water .� �what� �is� � the� � volume� �of� � cavity?� �(� density� �of� � gold=� 19.3� g/cm3)

90.engine has an efficiency of of 1/6.The temperature of sink is reducedby 62 ^° C,its efficiency is doubled .Temperature of source is? :

How many structural isomeric primary amines are possible for the formula C4H11N?

Which form is more stable among all these arrangements?

Completethe following reactions:(i) (ii) (iii) (iv)

Vapour density of PCl_{5 }at 400K is found to be 90.Degree of dissociation of PCl_{5 }will be (1) 15.8% (2) 13.6% (3) 14.25% (4) 90%

1 mole of AgNO3 is mixed with 0.5 mole KCL in 5l of water a white ppt is formed calculate the ratio of mole% of each element in the formed ppt.

71 Which product is formed when But-2-yne is treated with NaNH2 & liqid NH3 ?

How to number 9,10-dimethyl-1,2 benz anthracene?

What r next nearest neighbor.explain it for fcc bcc.how man C atoms r present in diamond unit cell.illustrate.

How polarity can be related to reactivity

Among NO2-,NO2+,NO3-, what is the order of bond length and bond angle

A solution of urea (NH2-CO-NH2) in water. The Molarity of the 1.2g/cm³ dense solution is 3.00 mol/LFind it's molality

find the work done in increasing the temperature of nitrogen at constant pressure from 37 degree Celsius to 337 degree Celsius Cp= 7 calorie per mole degree celsius in this process what is work done by the gas?

An oil drop has 7.99 × 10−19 C charge. How many electrons does this oil drop has?

The formula of Blue Vitrol is :

11. Bemzylamine and aniline can be distinguished by 1. HNO2 2. CHCl3/KOH 3. Br2 water 4. Schiffs reagent

With which of the given pairs 2 resembles

How is 1-propoxypropane synthesised from propan-1-ol? Write mechanism of this reaction.

The volume of CO2 evolved at STP on heating 50 gram of calcium carbonate

H2O(l)→H2(g)+12O2(g) ΔH=+890.36KJ/mole What is ΔH for formation of H2O(l) from its constituent elements?

In electrolysis of concentrated NaCl,what is product at anode and cathode?? Chemistry

Which of the following displacement reactions is not possible?

The average atomic mass of Cl35 &amp; Cl37 is 35.5. Then % abudance Cl35 of is

the dimensional formula of (μ°ε°)^-1 is(

Question 42Show diagrammatically the electron distributions in a sodium atom and a sodium ion and also give their atomic number.

The normality of a solution that has 15 g equivalents of solute dissolved in 750 mL solution is .

List the three major kinds of RNA and mention their function. [3]

In the following reversible reaction 2SO2 + O2 ⇌ 2SO3 + QCal Most suitable condition for the higher production of SO3 is

Which of the following molecule does not exhibit tautomerism?

Which of the following explains light as both as a stream of particles and as a wave?

A B C D from cubic structure A at corners B at face C at centre D at edge in cubic unit cell if atom touching one of the 2fold 3fold 4fold what's is formula?

You have been given three amino acids in excess Phenylalanine (P) Glutamine (Q) Histidine (R)All three amino acids are put in a container which already contain some acid and excess of water. How many tripepetides are possible which contain three different amino acids?

The average atomic mass of Cl35 & Cl37 is 35.5. Then % abudance Cl35 of is