46295 + Interview Questions in Chemistry

1.	Is volume strength = 5.6 x normality for all compounds?
Answer» Is volume strength = 5.6 x normality for all compounds?

Discussion

2.	Calculate the mass of lime obtained by heating 200g of 95% pure limestone.
Answer» Calculate the mass of lime obtained by heating 200g of 95% pure limestone.

Discussion

3.	The benzene diazonium chloride needed for the sandmeyer reaction to produce aromatic halides is produced by diazotisation reaction that takes place at
Answer» The benzene diazonium chloride needed for the sandmeyer reaction to produce aromatic halides is produced by diazotisation reaction that takes place at

Discussion

4.	Acid catalyzed hydration of alkenes except ethene leads to the formation of :
Answer» Acid catalyzed hydration of alkenes except ethene leads to the formation of :

Discussion

5.	Rank the following compounds in order of decreasing acidity (strongest acid first) :
Answer» Rank the following compounds in order of decreasing acidity (strongest acid first) :

Discussion

6.	The increasing order (lowest first) for the values of e/m (charge/mass) for
Answer» The increasing order (lowest first) for the values of e/m (charge/mass) for

Discussion

7.	Question 53A motor car, with its glass totally closed, is parked directly under the sun. The inside temperature of the car rises very high. Explain why?
Answer» Question 53 A motor car, with its glass totally closed, is parked directly under the sun. The inside temperature of the car rises very high. Explain why?

Discussion

8.	If some moles of O2 diffuses in 18 sec and same moles of other gas diffuses in 45 sec.Find the molecular weight of the unknown gas .
Answer» If some moles of $O_{2}$ diffuses in 18 sec and same moles of other gas diffuses in 45 sec.Find the molecular weight of the unknown gas .

Discussion

9.	Which one of the following is not a valid value for the magnetic quantum number of an electron in a 5d sub shell?
Answer» Which one of the following is not a valid value for the magnetic quantum number of an electron in a 5d sub shell?

Discussion

10.	A solution of 1.25g of non - electrolyte in 20g of water freezes at 271.94 K. If Kf = 1.86 K kg mol-1, then the molecular weight of the solute will be:
Answer» A solution of 1.25g of non - electrolyte in 20g of water freezes at 271.94 K. If K_f = 1.86 K kg mol^-1, then the molecular weight of the solute will be:

Discussion

11.	Which one of the following carbocations are most stable ?
Answer» Which one of the following carbocations are most stable ?

Discussion

12.	Explain how Alpha ketoglutaric acid is raw material for synthesis of amino acid
Answer» Explain how Alpha ketoglutaric acid is raw material for synthesis of amino acid

Discussion

13.	(ch3)2nh +hno2->A->cf3co3h added -> final product will b
Answer» (ch3)2nh +hno2->A->cf3co3h added -> final product will b

Discussion

14.	What volume of water is to be added to 100 cmof 0.5 M NaOH solution to make it 0.1 M solution? (1) 200 cm3(2) 400 cm3(3) 500 cm3(4) 100 cm3
Answer» What volume of water is to be added to 100 cmof 0.5 M NaOH solution to make it 0.1 M solution? (1) 200 cm3(2) 400 cm3(3) 500 cm3(4) 100 cm3

Discussion

15.	Which of the following is a branched polymer?
Answer» Which of the following is a branched polymer?

Discussion

16.	How many moles of H2SO4 should be removed from 10L solution so that pH changes from 2 to 3
Answer» How many moles of H2SO4 should be removed from 10L solution so that pH changes from 2 to 3

Discussion

17.	Does 1,2 dimethylcyclopropane exhibit optical isomerism?if no...why?if yes...why?
Answer» Does 1,2 dimethylcyclopropane exhibit optical isomerism?if no...why?if yes...why?

Discussion

18.	Mark out the incorrect pair of compounds and their shapes:
Answer» Mark out the incorrect pair of compounds and their shapes:

Discussion

19.	69. 200 ml of O3(g) decomposes in such a way that total volume of the mixture becomes 240 ml.what is the percentage decomposition of O3(g)?
Answer» 69. 200 ml of O3(g) decomposes in such a way that total volume of the mixture becomes 240 ml.what is the percentage decomposition of O3(g)?

Discussion

20.	Fe2+ is more stable or Fe3+?
Answer» Fe2+ is more stable or Fe3+?

Discussion

21.	X+H+⟶Y+Na++H2O Y+KCl⟶K2Cr2O7+NaCl Find X and Y.
Answer» $X + H^{+} ⟶ Y + N a^{+} + H_{2} O$ $Y + K C l ⟶ K_{2} C r_{2} O_{7} + N a C l$ Find X and Y.

21.

X+H+⟶Y+Na++H2O Y+KCl⟶K2Cr2O7+NaCl Find X and Y.

Answer»

$X + H^{+} ⟶ Y + N a^{+} + H_{2} O$

$Y + K C l ⟶ K_{2} C r_{2} O_{7} + N a C l$

Find X and Y.

Discussion

22.	48. If concentration of sucrose 0.05N what is its value in g/L
Answer» 48. If concentration of sucrose 0.05N what is its value in g/L

Discussion

23.	The most stable carbocation is:
Answer» The most stable carbocation is:

Discussion

24.	Which of the following is an example of a solid-solid solution?
Answer» Which of the following is an example of a solid-solid solution?

Discussion

25.	Which orbit of the triply ionized beryllium (Be3+) has the same orbit radius as that of the ground state of hydrogen atom?
Answer» Which orbit of the triply ionized beryllium $(B e^{3 +})$ has the same orbit radius as that of the ground state of hydrogen atom?

Discussion

26.	what is the meaning of following terms-1.Phenol Group2.Aromatic
Answer» what is the meaning of following terms- 1.Phenol Group 2.Aromatic

Discussion

27.	Why the Nitrogen show +5 oxidation state??
Answer» Why the Nitrogen show +5 oxidation state??

Discussion

28.	In which case is number of molecules of water maximum?(1) 18 mL of water(2) 0.18 g of water(3) 10.1 mol of water(4) 0.00224 L of water vapours at 1 atm and 273k
Answer» In which case is number of molecules of water maximum? (1) 18 mL of water (2) 0.18 g of water (3) 10.1 mol of water (4) 0.00224 L of water vapours at 1 atm and 273k

Discussion

29.	how many kg of o2 gas at ntp can be obtained from 90 kg water
Answer» how many kg of o2 gas at ntp can be obtained from 90 kg water

Discussion

30.	Which among the following will be the major product?
Answer» Which among the following will be the major product?

Discussion

31.	Intramolecular hydrogen bonding leads to
Answer» Intramolecular hydrogen bonding leads to

Discussion

32.	The bond order of X−O bond in HPO2−3 and ClO−4 are respectively
Answer» The bond order of $X - O$ bond in $H P O_{3}^{2 -}$ and $C l O_{4}^{-}$ are respectively

Discussion

33.	Define homologous series.
Answer» Define homologous series.

Discussion

34.	The bond order of O+2 is
Answer» The bond order of $O_{2}^{+}$ is

Discussion

35.	If y = loge x ^ 2 , then the value of dy/dx
Answer» If y = loge x ^ 2 , then the value of dy/dx

Discussion

36.	A capillary tube is dipped into the liquid of surface tension s. The rise or fall of a liquid In a capillary tube is give as (where symbol have usual meaning) (a)h=scos(theta)/r×(rho)×g (b)h=r(rho)g/scos(theta) (c)h=2scos(theta)/f(rho)g (d)h=r(rho)g/2scos(theta)
Answer» A capillary tube is dipped into the liquid of surface tension s. The rise or fall of a liquid In a capillary tube is give as (where symbol have usual meaning) (a)h=scos(theta)/r×(rho)×g (b)h=r(rho)g/scos(theta) (c)h=2scos(theta)/f(rho)g (d)h=r(rho)g/2scos(theta)

Discussion

37.	The reaction condition leading to the best yield of C2H5Cl is:
Answer» The reaction condition leading to the best yield of $C_{2} H_{5} C l$ is:

Discussion

38.	Why is Relative Atomic Mass always a decimal or fractional number, As an electron cannot be half or quarter in an atom?
Answer» Why is Relative Atomic Mass always a decimal or fractional number, As an electron cannot be half or quarter in an atom?

Discussion

39.	ntA compound of Xe and F is found to have 53.3% Xe (At mass =133) oxidation no of Xe in this compound is ?n ntExplain in detailn
Answer» ntA compound of Xe and F is found to have 53.3% Xe (At mass =133) oxidation no of Xe in this compound is ?n ntExplain in detailn

Discussion

40.	How noble gases posses London forces explain it in simple form?
Answer» How noble gases posses London forces explain it in simple form?

Discussion

41.	1o,2o and 3o nitroalkane can be identified by action of:
Answer» $1^{o}, 2^{o}$ and $3^{o}$ nitroalkane can be identified by action of:

Discussion

42.	At a constant volume the specific heat of a gas is 0.075cal/g and its molecular weight is 40: A) monoatomic B) diatomic C) triatomic D) none of these
Answer» At a constant volume the specific heat of a gas is 0.075cal/g and its molecular weight is 40: A) monoatomic B) diatomic C) triatomic D) none of these

Discussion

43.	15 mL of a gaseous hydrocarbon was required for complete combustion in 357.15 mL of air (21% of oxygen by volume) and the gaseous products occupied 327 mL (all volumes being measured at NTP). What is the formula of the hydrocarbon?
Answer» $15 mL$ of a gaseous hydrocarbon was required for complete combustion in $357.15 mL$ of air ( $21 %$ of oxygen by volume) and the gaseous products occupied $327 mL$ (all volumes being measured at NTP). What is the formula of the hydrocarbon?

Discussion

44.	To a 10 mL of 10−3N H2SO4 solution water has been added to make the total volume of one litre. Its pOH would be:
Answer» To a $10 mL$ of $10^{- 3} N H_{2} S O_{4}$ solution water has been added to make the total volume of one litre. Its $p O H$ would be:

Discussion

45.	As we know h2o is polar in nature so why it's also polyatomic?
Answer» As we know h2o is polar in nature so why it's also polyatomic?

Discussion

46.	each of two large conducting parallel plates has one sided surface area A .if one of the plates is given a chrge Q whereas the other is neutral ,then the electric field at a point in between the plats is given by
Answer» each of two large conducting parallel plates has one sided surface area A .if one of the plates is given a chrge Q whereas the other is neutral ,then the electric field at a point in between the plats is given by

Discussion

47.	Among the following, the optically inactive compound is :
Answer» Among the following, the optically inactive compound is :

Discussion

48.	Difference between structure of monoclinic and triclinic
Answer» Difference between structure of monoclinic and triclinic

Discussion

49.	ratio of number of collisions per second at walls of container by helium and o2 gas molecules kept at same volume and temperature is 1.2:1 2.2\sqrt2:1 3.1:2 4.1:2\sqrt2
Answer» ratio of number of collisions per second at walls of container by helium and o2 gas molecules kept at same volume and temperature is 1.2:1 2.2\sqrt2:1 3.1:2 4.1:2\sqrt2

Discussion

50.	In an experiment, sodium hydroxide solution reacts with a hydrochloric acid solution to produce sodium chloride solution and water. Write the balanced equation (with physical states) for this experiment.
Answer» In an experiment, sodium hydroxide solution reacts with a hydrochloric acid solution to produce sodium chloride solution and water. Write the balanced equation (with physical states) for this experiment.

50.

In an experiment, sodium hydroxide solution reacts with a hydrochloric acid solution to produce sodium chloride solution and water. Write the balanced equation (with physical states) for this experiment.

Answer»

In an experiment, sodium hydroxide solution reacts with a hydrochloric acid solution to produce sodium chloride solution and water.

Write the balanced equation (with physical states) for this experiment.

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Is volume strength = 5.6 x normality for all compounds?

Calculate the mass of lime obtained by heating 200g of 95% pure limestone.

The benzene diazonium chloride needed for the sandmeyer reaction to produce aromatic halides is produced by diazotisation reaction that takes place at

Acid catalyzed hydration of alkenes except ethene leads to the formation of :

Rank the following compounds in order of decreasing acidity (strongest acid first) :

The increasing order (lowest first) for the values of e/m (charge/mass) for

Question 53A motor car, with its glass totally closed, is parked directly under the sun. The inside temperature of the car rises very high. Explain why?

If some moles of O2 diffuses in 18 sec and same moles of other gas diffuses in 45 sec.Find the molecular weight of the unknown gas .

Which one of the following is not a valid value for the magnetic quantum number of an electron in a 5d sub shell?

A solution of 1.25g of non - electrolyte in 20g of water freezes at 271.94 K. If Kf = 1.86 K kg mol-1, then the molecular weight of the solute will be:

Which one of the following carbocations are most stable ?

Explain how Alpha ketoglutaric acid is raw material for synthesis of amino acid

(ch3)2nh +hno2->A->cf3co3h added -> final product will b

What volume of water is to be added to 100 cmof 0.5 M NaOH solution to make it 0.1 M solution? (1) 200 cm3(2) 400 cm3(3) 500 cm3(4) 100 cm3

Which of the following is a branched polymer?

How many moles of H2SO4 should be removed from 10L solution so that pH changes from 2 to 3

Does 1,2 dimethylcyclopropane exhibit optical isomerism?if no...why?if yes...why?

Mark out the incorrect pair of compounds and their shapes:

69. 200 ml of O3(g) decomposes in such a way that total volume of the mixture becomes 240 ml.what is the percentage decomposition of O3(g)?

Fe2+ is more stable or Fe3+?

X+H+⟶Y+Na++H2O Y+KCl⟶K2Cr2O7+NaCl Find X and Y.

48. If concentration of sucrose 0.05N what is its value in g/L

The most stable carbocation is:

Which of the following is an example of a solid-solid solution?

Which orbit of the triply ionized beryllium (Be3+) has the same orbit radius as that of the ground state of hydrogen atom?

what is the meaning of following terms-1.Phenol Group2.Aromatic

Why the Nitrogen show +5 oxidation state??

In which case is number of molecules of water maximum?(1) 18 mL of water(2) 0.18 g of water(3) 10.1 mol of water(4) 0.00224 L of water vapours at 1 atm and 273k

how many kg of o2 gas at ntp can be obtained from 90 kg water

Which among the following will be the major product?

Intramolecular hydrogen bonding leads to

The bond order of X−O bond in HPO2−3 and ClO−4 are respectively

Define homologous series.

The bond order of O+2 is

If y = loge x ^ 2 , then the value of dy/dx

A capillary tube is dipped into the liquid of surface tension s. The rise or fall of a liquid In a capillary tube is give as (where symbol have usual meaning) (a)h=scos(theta)/r×(rho)×g (b)h=r(rho)g/scos(theta) (c)h=2scos(theta)/f(rho)g (d)h=r(rho)g/2scos(theta)

The reaction condition leading to the best yield of C2H5Cl is:

Why is Relative Atomic Mass always a decimal or fractional number, As an electron cannot be half or quarter in an atom?

ntA compound of Xe and F is found to have 53.3% Xe (At mass =133) oxidation no of Xe in this compound is ?n ntExplain in detailn

How noble gases posses London forces explain it in simple form?

1o,2o and 3o nitroalkane can be identified by action of:

At a constant volume the specific heat of a gas is 0.075cal/g and its molecular weight is 40: A) monoatomic B) diatomic C) triatomic D) none of these

15 mL of a gaseous hydrocarbon was required for complete combustion in 357.15 mL of air (21% of oxygen by volume) and the gaseous products occupied 327 mL (all volumes being measured at NTP). What is the formula of the hydrocarbon?

To a 10 mL of 10−3N H2SO4 solution water has been added to make the total volume of one litre. Its pOH would be:

As we know h2o is polar in nature so why it's also polyatomic?

each of two large conducting parallel plates has one sided surface area A .if one of the plates is given a chrge Q whereas the other is neutral ,then the electric field at a point in between the plats is given by

Among the following, the optically inactive compound is :

Difference between structure of monoclinic and triclinic

ratio of number of collisions per second at walls of container by helium and o2 gas molecules kept at same volume and temperature is 1.2:1 2.2\sqrt2:1 3.1:2 4.1:2\sqrt2

In an experiment, sodium hydroxide solution reacts with a hydrochloric acid solution to produce sodium chloride solution and water. Write the balanced equation (with physical states) for this experiment.