46295 + Interview Questions in Chemistry

1.	12.How much water is required to dillute 10 ml of 10N HCL acid to make it exactly decinormal?
Answer» 12.How much water is required to dillute 10 ml of 10N HCL acid to make it exactly decinormal?

Discussion

2.	In simple cubic unit cell distance between first and fourth layer :-(1) 4 r(2) 2 r(3) 6 r(4) None of these
Answer» In simple cubic unit cell distance between first and fourth layer :-(1) 4 r(2) 2 r(3) 6 r(4) None of these

Discussion

3.	The coordination complex, [Cu(OH2)6]2+ has one unpaired electron. Which of the following statements are true about the coordination complex, [Cu(OH2)6]2+ ?(1) The complex is octahedral.(2) The complex is an outer orbital complex.(3) The complex is d2dp3 hybridized.(4) The complex is diamagnetic.(5) The coordination number is 6.
Answer» The coordination complex, $[C u (O H_{2})_{6}]^{2 +}$ has one unpaired electron. Which of the following statements are true about the coordination complex, $[C u (O H_{2})_{6}]^{2 +}$ ? (1) The complex is octahedral. (2) The complex is an outer orbital complex. (3) The complex is $d^{2} d p^{3}$ hybridized. (4) The complex is diamagnetic. (5) The coordination number is $6$ .

Discussion

4.	Which of the following statements are correct:
Answer» Which of the following statements are correct:

Discussion

5.	Phenyl isocyanides(PhNC reacts with conc. HCl to give
Answer» Phenyl isocyanides(PhNC reacts with conc. HCl to give

Discussion

6.	What is the reagent used in Etard reaction?
Answer» What is the reagent used in Etard reaction?

Discussion

7.	39.Which is more stable double bonded carbon free radical or single bonde carbon free radical and why?
Answer» 39.Which is more stable double bonded carbon free radical or single bonde carbon free radical and why?

Discussion

8.	47. The number of elements in second period , if spin quantum number could have values -1/2, 0, 1/2 are
Answer» 47. The number of elements in second period , if spin quantum number could have values -1/2, 0, 1/2 are

Discussion

9.	graphs that would correctly represents the relation between Celsius (ºC) and Fahrenheit (ºF) scale?
Answer» graphs that would correctly represents the relation between Celsius (ºC) and Fahrenheit (ºF) scale?

Discussion

10.	How the radius ratio of ionicsolid will derived
Answer» How the radius ratio of ionicsolid will derived

Discussion

11.	WHAT IS THE RATIO OF THE RADIUS OF 2ND ORBIT OF Li TO THAT OF 3RD ORBIT OF He
Answer» WHAT IS THE RATIO OF THE RADIUS OF 2ND ORBIT OF Li TO THAT OF 3RD ORBIT OF He

Discussion

12.	the total pressure exerted by the mixture of equal moles of two gases is 5×10^3 N/m^2 in a container of volume2 litres. calculate the number of moles of gases mixed
Answer» the total pressure exerted by the mixture of equal moles of two gases is 5×10^3 N/m^2 in a container of volume2 litres. calculate the number of moles of gases mixed

Discussion

13.	Which of the following properties is not a function of state?
Answer» Which of the following properties is not a function of state?

Discussion

14.	An Element With Electronic Configuration 1s^2 2s^2 2p^6 3s^2 is a/an is
Answer» An Element With Electronic Configuration 1s^2 2s^2 2p^6 3s^2 is a/an is

Discussion

15.	what is the difference between hydration and lattice enthalpy ? what are their applications ? are they both exothermic
Answer» what is the difference between hydration and lattice enthalpy ? what are their applications ? are they both exothermic

Discussion

16.	Calculate the volume of solution that will give rise to an osmotic pressure of 1 atm at 127∘C if the solution contains 2 moles of solute at the same temperature?
Answer» Calculate the volume of solution that will give rise to an osmotic pressure of $1 a t m a t 127^{\circ} C$ if the solution contains 2 moles of solute at the same temperature?

Discussion

17.	Ionization potential for a hydrogen atom is 13.6 V. Hydrogen atom in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. According to Bohr's theory, the number of spectral lines emitted by hydrogen atom will be
Answer» Ionization potential for a hydrogen atom is $13.6 V$ . Hydrogen atom in the ground state are excited by monochromatic radiation of photon energy $12.1 eV$ . According to Bohr's theory, the number of spectral lines emitted by hydrogen atom will be

Discussion

18.	In the conservation Br2⟶BRO−3, the oxidation state of bromine changes from
Answer» In the conservation $B r_{2} ⟶ B R O_{3}^{-}$ , the oxidation state of bromine changes from

Discussion

19.	(i) Name of the method of refining which is based on the principle of adsorption. (ii) What is the role of depressant in froth floatation process? (iii) What is the role of limestone in the extraction of iron from its oxides?
Answer» (i) Name of the method of refining which is based on the principle of adsorption. (ii) What is the role of depressant in froth floatation process? (iii) What is the role of limestone in the extraction of iron from its oxides?

Discussion

20.	2.5L of 1M NaOH solution mixed with another 3L of 0.5M NaOH solution .then find out resul†an t solution
Answer» 2.5L of 1M NaOH solution mixed with another 3L of 0.5M NaOH solution .then find out resul†an t solution

Discussion

21.	Which of the following is a homocyclic compound?
Answer» Which of the following is a homocyclic compound?

Discussion

22.	42.How to detect the zero order reaction
Answer» 42.How to detect the zero order reaction

Discussion

23.	Which of the following is correct for the orbitals of Cr?
Answer» Which of the following is correct for the orbitals of Cr?

Discussion

24.	For a particular reversible reaction at temperature T, △ H and △ S were found to be both +ve. If Te is the temperature at equilibrium, the reaction would be spon†an eous when. A .Te > T B .T > Te C . Te is 5 times T D. T = Te
Answer» For a particular reversible reaction at temperature T, △ H and △ S were found to be both +ve. If Te is the temperature at equilibrium, the reaction would be spon†an eous when. A .Te > T B .T > Te C . Te is 5 times T D. T = Te

Discussion

25.	Which is more acidic and why?Cl-CH2-CH2-COOH, Ph-COOH, CH3-COOH
Answer» Which is more acidic and why? Cl-CH2-CH2-COOH, Ph-COOH, CH3-COOH

Discussion

26.	A carbon compound containing only carbon and oxygen has an appropriate molecuar mass of 290. on analysis it is found to contain 50% by mass of each element .What is the molecular formula of the compound.
Answer» A carbon compound containing only carbon and oxygen has an appropriate molecuar mass of 290. on analysis it is found to contain 50% by mass of each element .What is the molecular formula of the compound.

Discussion

27.	Oxidation step of glycolysis is
Answer» Oxidation step of glycolysis is

Discussion

28.	For an endothermic reaction, energy of activation isand enthalpy of reaction is AH (both of these inkJ/mol). Minimum value of E, will be\lbrack AIPMT (Prelims)-2010\rbrack(2) Equal to Δ Η(4) Equal to zero(1) Less than Δ Η(3) More than AH
Answer» For an endothermic reaction, energy of activation isand enthalpy of reaction is AH (both of these inkJ/mol). Minimum value of E, will be\lbrack AIPMT (Prelims)-2010\rbrack(2) Equal to Δ Η(4) Equal to zero(1) Less than Δ Η(3) More than AH

Discussion

29.	4.Negative standard enthalpy of formation will be maximum for NaF, NaCl, NaBr, NaI
Answer» 4.Negative standard enthalpy of formation will be maximum for NaF, NaCl, NaBr, NaI

Discussion

30.	Calculate the molality oF a solution containing 5.3gm of anhydrous Na2CO3 in 400g of water
Answer» Calculate the molality oF a solution containing 5.3gm of anhydrous Na2CO3 in 400g of water

Discussion

31.	PbX2 is more stable than PbX4. Why?
Answer» PbX₂is more stable than PbX₄. Why?

Discussion

32.	Discuss the main purpose of vulcanisation of rubber.
Answer» Discuss the main purpose of vulcanisation of rubber.

Discussion

33.	5. Which of the following compound(s) reduces chromates and dichromates ? 1. SO2 2. KI 3. CH3CH2OH 4. conc. HCl
Answer» 5. Which of the following compound(s) reduces chromates and dichromates ? 1. SO2 2. KI 3. CH3CH2OH 4. conc. HCl

Discussion

34.	Concentrated nitric acid cannot be used to cause nitration of phenol because
Answer» Concentrated nitric acid cannot be used to cause nitration of phenol because

Discussion

35.	Which of the following salt solutions (0.1 M each) will have the lowest pH values?
Answer» Which of the following salt solutions ( $0.1 M$ each) will have the lowest pH values?

Discussion

36.	When acetylene reacted with hydrochloric acid in presence of HgCl2 the product obtained is
Answer» When acetylene reacted with hydrochloric acid in presence of $H g C l_{2}$ the product obtained is

Discussion

37.	Product (A) of the given reaction is :
Answer» Product (A) of the given reaction is :

Discussion

38.	SN1 solvolysis of 1-(bromomethyl)cyclohex-1-ene in ethanol gives:
Answer» $S_{N} 1$ solvolysis of 1-(bromomethyl)cyclohex-1-ene in ethanol gives:

Discussion

39.	Find the maximum magnitude of the linear momentum of a photo electron emitted when light of wavelength 400 nm falls on a metal having work function 2.5 eV.
Answer» Find the maximum magnitude of the linear momentum of a photo electron emitted when light of wavelength 400 nm falls on a metal having work function 2.5 eV.

Discussion

40.	The minimum equivalent conductance in fused state is:
Answer» The minimum equivalent conductance in fused state is:

Discussion

41.	Which of the following compound(s) show(s) optical isomerism
Answer» Which of the following compound(s) show(s) optical isomerism

Discussion

42.	cycloalkane general formul
Answer» cycloalkane general formul

Discussion

43.	Calculate the freezing point of an aqueous solution containing 10.50 g of MgBr2 in 200 g of water (Molar mass of MgBr2 is 184 g) (Kf for water is 1.86 K kg /mol)
Answer» Calculate the freezing point of an aqueous solution containing 10.50 g of MgBr₂ in 200 g of water (Molar mass of MgBr₂ is 184 g) (K_f for water is 1.86 K kg /mol)

Discussion

44.	If the density of methanol is 0.793 Kg L^-1, what is its volume needed for making 2.5 L of its 0.25 M solution.
Answer» If the density of methanol is 0.793 Kg L^-1, what is its volume needed for making 2.5 L of its 0.25 M solution.

Discussion

45.	47 x moles of potassium dichromate oxidizes 1 mole of ferrous oxalate in acidic medium.Here x is a)3 b)1.5 c)0.5 d)1.0
Answer» 47 x moles of potassium dichromate oxidizes 1 mole of ferrous oxalate in acidic medium.Here x is a)3 b)1.5 c)0.5 d)1.0

Discussion

46.	The reaction of sodium ethoxide with ethyl iodide to form diethyl ether is termed
Answer» The reaction of sodium ethoxide with ethyl iodide to form diethyl ether is termed

Discussion

47.	Ionic radii are [CBSE AIPMT 2004]
Answer» Ionic radii are [CBSE AIPMT 2004]

Discussion

48.	propyl benzene when oxidised in the presence of alkaline potassium permanganate the product obtained i
Answer» propyl benzene when oxidised in the presence of alkaline potassium permanganate the product obtained i

Discussion

49.	why are alkanes considered as excellent fuel
Answer» why are alkanes considered as excellent fuel

Discussion

50.	The solubility product of a sparingly soluble salt AB at room temperature is 1.21×10−6, its molar solubility is:
Answer» The solubility product of a sparingly soluble salt AB at room temperature is $1.21 \times 10^{- 6}$ , its molar solubility is:

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

12.How much water is required to dillute 10 ml of 10N HCL acid to make it exactly decinormal?

In simple cubic unit cell distance between first and fourth layer :-(1) 4 r(2) 2 r(3) 6 r(4) None of these

Which of the following statements are correct:

Phenyl isocyanides(PhNC reacts with conc. HCl to give

What is the reagent used in Etard reaction?

39.Which is more stable double bonded carbon free radical or single bonde carbon free radical and why?

47. The number of elements in second period , if spin quantum number could have values -1/2, 0, 1/2 are

graphs that would correctly represents the relation between Celsius (ºC) and Fahrenheit (ºF) scale?

How the radius ratio of ionicsolid will derived

WHAT IS THE RATIO OF THE RADIUS OF 2ND ORBIT OF Li TO THAT OF 3RD ORBIT OF He

the total pressure exerted by the mixture of equal moles of two gases is 5×10^3 N/m^2 in a container of volume2 litres. calculate the number of moles of gases mixed

Which of the following properties is not a function of state?

An Element With Electronic Configuration 1s^2 2s^2 2p^6 3s^2 is a/an is

what is the difference between hydration and lattice enthalpy ? what are their applications ? are they both exothermic

Calculate the volume of solution that will give rise to an osmotic pressure of 1 atm at 127∘C if the solution contains 2 moles of solute at the same temperature?

Ionization potential for a hydrogen atom is 13.6 V. Hydrogen atom in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. According to Bohr's theory, the number of spectral lines emitted by hydrogen atom will be

In the conservation Br2⟶BRO−3, the oxidation state of bromine changes from

(i) Name of the method of refining which is based on the principle of adsorption. (ii) What is the role of depressant in froth floatation process? (iii) What is the role of limestone in the extraction of iron from its oxides?

2.5L of 1M NaOH solution mixed with another 3L of 0.5M NaOH solution .then find out resul†an t solution

Which of the following is a homocyclic compound?

42.How to detect the zero order reaction

Which of the following is correct for the orbitals of Cr?

For a particular reversible reaction at temperature T, △ H and △ S were found to be both +ve. If Te is the temperature at equilibrium, the reaction would be spon†an eous when. A .Te > T B .T > Te C . Te is 5 times T D. T = Te

Which is more acidic and why?Cl-CH2-CH2-COOH, Ph-COOH, CH3-COOH

A carbon compound containing only carbon and oxygen has an appropriate molecuar mass of 290. on analysis it is found to contain 50% by mass of each element .What is the molecular formula of the compound.

Oxidation step of glycolysis is

For an endothermic reaction, energy of activation isand enthalpy of reaction is AH (both of these inkJ/mol). Minimum value of E, will be\lbrack AIPMT (Prelims)-2010\rbrack(2) Equal to Δ Η(4) Equal to zero(1) Less than Δ Η(3) More than AH

4.Negative standard enthalpy of formation will be maximum for NaF, NaCl, NaBr, NaI

Calculate the molality oF a solution containing 5.3gm of anhydrous Na2CO3 in 400g of water

PbX​​​​2 is more stable than PbX​​​​4. Why?

Discuss the main purpose of vulcanisation of rubber.

5. Which of the following compound(s) reduces chromates and dichromates ? 1. SO2 2. KI 3. CH3CH2OH 4. conc. HCl

Concentrated nitric acid cannot be used to cause nitration of phenol because

Which of the following salt solutions (0.1 M each) will have the lowest pH values?

When acetylene reacted with hydrochloric acid in presence of HgCl2 the product obtained is

Product (A) of the given reaction is :

SN1 solvolysis of 1-(bromomethyl)cyclohex-1-ene in ethanol gives:

Find the maximum magnitude of the linear momentum of a photo electron emitted when light of wavelength 400 nm falls on a metal having work function 2.5 eV.

The minimum equivalent conductance in fused state is:

Which of the following compound(s) show(s) optical isomerism

cycloalkane general formul

Calculate the freezing point of an aqueous solution containing 10.50 g of MgBr2 in 200 g of water (Molar mass of MgBr2 is 184 g) (Kf for water is 1.86 K kg /mol)

If the density of methanol is 0.793 Kg L^-1, what is its volume needed for making 2.5 L of its 0.25 M solution.

47 x moles of potassium dichromate oxidizes 1 mole of ferrous oxalate in acidic medium.Here x is a)3 b)1.5 c)0.5 d)1.0

The reaction of sodium ethoxide with ethyl iodide to form diethyl ether is termed

Ionic radii are [CBSE AIPMT 2004]

propyl benzene when oxidised in the presence of alkaline potassium permanganate the product obtained i

why are alkanes considered as excellent fuel

The solubility product of a sparingly soluble salt AB at room temperature is 1.21×10−6, its molar solubility is:

PbX2 is more stable than PbX4. Why?