46295 + Interview Questions in Chemistry

1.	The IUPAC name of the compound (CH3)2 CH CH2CH2Cl is
Answer» The IUPAC name of the compound $(C H_{3})_{2} C H C H_{2} C H_{2} C l$ is

Discussion

2.	58^n can never ends with
Answer» 58^n can never ends with

Discussion

3.	How to calculate coefficient of viscosity? ?
Answer» How to calculate coefficient of viscosity? ?

Discussion

4.	For the reaction A(g)+2B(g)⇌2(g)+D(s), 2 moles of A, 3 moles of B and 1 mole of C are present in 10L vessel if KC for the reaction is 3.6, the reaction will proceed in:-
Answer» For the reaction $A (g) + 2 B (g) ⇌ 2 (g) + D (s)$ , 2 moles of A, 3 moles of B and 1 mole of C are present in 10L vessel if $K_{C}$ for the reaction is 3.6, the reaction will proceed in:-

Discussion

5.	To an acidified dichromate solution, Na2O2 is added and shaken. What is observed?
Answer» To an acidified dichromate solution, Na₂O₂ is added and shaken. What is observed?

Discussion

6.	A monoatomic gas is supplied 80j heat at constant pressure the internal energy of gas increases by
Answer» A monoatomic gas is supplied 80j heat at constant pressure the internal energy of gas increases by

Discussion

7.	The rate of the reaction, 2A+B gives products is given by rate expression, rate = k(A)^1.5 (B)^0.5. If (A) is 2molar and (B) is 100molar, then the order of reaction will be?
Answer» The rate of the reaction, 2A+B gives products is given by rate expression, rate = k(A)^1.5 (B)^0.5. If (A) is 2molar and (B) is 100molar, then the order of reaction will be?

Discussion

8.	The formula for calculation of n-factor (nf) for a disproportionation reaction is given as:
Answer» The formula for calculation of n-factor $(n_{f})$ for a disproportionation reaction is given as:

Discussion

9.	For a polybasic acid, the dissociation constants have different value for each steps, e.g.,H3A⇌H++H2A−; K=Ka1H2A−⇌H++HA2−; K=Ka2HA2−⇌H++A3−; K=Ka3What is the observed trend of dissociation constants in succesive stage?
Answer» For a polybasic acid, the dissociation constants have different value for each steps, e.g., $H_{3} A ⇌ H^{+} + H_{2} A^{-}; K = K_{a_{1}}$ $H_{2} A^{-} ⇌ H^{+} + H A^{2 -}; K = K_{a_{2}}$ $H A^{2 -} ⇌ H^{+} + A^{3 -}; K = K_{a_{3}}$ What is the observed trend of dissociation constants in succesive stage?

Discussion

10.	Identify from the following reaction the reactants that undergo oxidation and reduction.a. Fe + S → FeSb. 2Ag2O → 4 Ag + O2 ↑c. 2Mg + O2 → 2MgOd. NiO + H2 → Ni + H2O
Answer» Identify from the following reaction the reactants that undergo oxidation and reduction. a. Fe + S → FeS b. 2Ag₂O → 4 Ag + O₂ ↑ c. 2Mg + O₂ → 2MgO d. NiO + H₂ → Ni + H₂O

Discussion

11.	intermolecular hydrogen bonds are not present in1.CH3CH2OH2.CH3COOH3.C2H5NH24.CH3OCH3
Answer» intermolecular hydrogen bonds are not present in 1.CH3CH2OH 2.CH3COOH 3.C2H5NH2 4.CH3OCH3

Discussion

12.	Electronic configuration of four neutral atoms are given below. Which of the following elements would not be paramagnetic
Answer» Electronic configuration of four neutral atoms are given below. Which of the following elements would not be paramagnetic

12.

Electronic configuration of four neutral atoms are given below. Which of the following elements would not be paramagnetic

Answer»

Electronic configuration of four neutral atoms are given below.

Which of the following elements would not be paramagnetic

Discussion

13.	List out the differences between Isobars and Isotopes
Answer» List out the differences between Isobars and Isotopes

Discussion

14.	For a solution of 0.849gram of mercurous chloride in 50 g of HgCl2 the freezing point depression is 1.24^° C Kf for HgCl2 is 34.3. What is the state of mercurous chloride in HgCl
Answer» For a solution of 0.849gram of mercurous chloride in 50 g of HgCl2 the freezing point depression is 1.24^° C Kf for HgCl2 is 34.3. What is the state of mercurous chloride in HgCl

Discussion

15.	2 gram atom of A_2 reacts with 2 gram molecule of B_{4 }by this following reaction 2A_2(g)+3B_4(g)→4C which statement is true 1)A_{2 }is limmiting reagent 2)B_4 is limmiting reagent
Answer» 2 gram atom of A_2 reacts with 2 gram molecule of B_{4 }by this following reaction 2A_2(g)+3B_4(g)→4C which statement is true 1)A_{2 }is limmiting reagent 2)B_4 is limmiting reagent

Discussion

16.	Elaborative difference between EMF\:and electrode potential.
Answer» Elaborative difference between EMF\:and electrode potential.

Discussion

17.	If 0.5 mole of BaCl2 is mixed with 0.2 mole of Na3PO4, the maximum number of moles of Ba3(PO4)2 that can be formed is
Answer» If $0.5$ mole of $B a C l_{2}$ is mixed with $0.2$ mole of $N a_{3} P O_{4}$ , the maximum number of moles of $B a_{3} (P O_{4})_{2}$ that can be formed is

Discussion

18.	60. If the average atomic mass of chlorine is 35.5, then find the percentage abundance of the two isotopes of chlorine which have the mass number 35 and 37
Answer» 60. If the average atomic mass of chlorine is 35.5, then find the percentage abundance of the two isotopes of chlorine which have the mass number 35 and 37

Discussion

19.	A list of species having the formula XZ4 is given below: XeF4, SF4, SiF4, BF−4, BrF−4, [Cu(NH3)4]2+, [FeCl4]2−, [CoCl4]2− and [PtCl4]2−. Defining shape on the basis of the location of X and Z atoms, the total number of species having a square planar shape is
Answer» A list of species having the formula $X Z_{4}$ is given below: $X e F_{4}, S F_{4}, S i F_{4}, B F_{4}^{-}, B r F_{4}^{-}, [C u (N H_{3})_{4}]^{2 +}, [F e C l_{4}]^{2 -}, [C o C l_{4}]^{2 -} and [P t C l_{4}]^{2 -} .$ Defining shape on the basis of the location of X and Z atoms, the total number of species having a square planar shape is

Discussion

20.	For the first order reaction A forms P, the temperature (T) dependent rate constant (k) was found to follow the equation log k = -(2000)1/T +60 . The pre-exponential factor A and the activation energy Ea, respectively are ( IIT 2009)
Answer» For the first order reaction A forms P, the temperature (T) dependent rate constant (k) was found to follow the equation log k = -(2000)1/T +60 . The pre-exponential factor A and the activation energy E_a, respectively are ( IIT 2009)

Discussion

21.	46. what is 2s2p mixing in MOT does it is the reason due to which above 14 electron sigma 2pz is written before pi
Answer» 46. what is 2s2p mixing in MOT does it is the reason due to which above 14 electron sigma 2pz is written before pi

Discussion

22.	Assertion: All F-S-F angle in SF_2 is greater than 90^o but less than 180^o. Reason:The lone pair-bond pair repulsion is weaker than bond pair-bond pair repulsion
Answer» Assertion: All F-S-F angle in SF_2 is greater than 90^o but less than 180^o. Reason:The lone pair-bond pair repulsion is weaker than bond pair-bond pair repulsion

Discussion

23.	A Light of wavelength λ shines on a metal surface with intensity X, and the metal emits Y electrons per second of average energy Z. What will happen to Y and Z If X is doubled?
Answer» A Light of wavelength $λ$ shines on a metal surface with intensity X, and the metal emits Y electrons per second of average energy Z. What will happen to Y and Z If X is doubled?

Discussion

24.	53. Molality of 100g of 20%(w/w) of aqueous common salt solution is approximately
Answer» 53. Molality of 100g of 20%(w/w) of aqueous common salt solution is approximately

Discussion

25.	Are lanthanum and actinium considered as d-block or f-block elements and why??
Answer» Are lanthanum and actinium considered as d-block or f-block elements and why??

Discussion

26.	Which of the following set of quantum numbers is correct for an electron in 5d orbital?
Answer» Which of the following set of quantum numbers is correct for an electron in 5d orbital?

Discussion

27.	Which is incorrect reaction in following :-
Answer» Which is incorrect reaction in following :-

Discussion

28.	At 300 K and 1 atmospheric pressure, 10 mL of a hydrocarbon required 55 mL of O2 for complete combustion and 40 mL of CO2 is formed. The formula of the hydrocarbon is:
Answer» At $300 K$ and 1 atmospheric pressure, $10 m L$ of a hydrocarbon required $55 m L$ of $O_{2}$ for complete combustion and $40 m L$ of $C O_{2}$ is formed. The formula of the hydrocarbon is:

Discussion

29.	Which among the following will give tertiary alcohol on acid hydration?
Answer» Which among the following will give tertiary alcohol on acid hydration?

Discussion

30.	43. Two liquid A And B on mixing produce warm solution which type of deviation from Raoult law does it show?
Answer» 43. Two liquid A And B on mixing produce warm solution which type of deviation from Raoult law does it show?

Discussion

31.	A sample of hard water contains 1 mg of CaCl2 and 1 mg MgCl2 per litre. Calculate the hardness of water in terms of CaCO3 present in per 106 parts of water.
Answer» A sample of hard water contains 1 mg of $C a C l_{2}$ and 1 mg $M g C l_{2}$ per litre. Calculate the hardness of water in terms of $C a C O_{3}$ present in per $10^{6}$ parts of water.

Discussion

32.	The most basic among the following is:
Answer» The most basic among the following is:

Discussion

33.	Density of a gas is found to be 5.46 g/dm3 at 27 ∘C at 2 bar pressure. What will be its density at STP?
Answer» Density of a gas is found to be $5.46 {g/dm}^{3}$ at $27^{\circ} C$ at $2$ bar pressure. What will be its density at $S T P$ ?

Discussion

34.	Which of the following combinations will make a buffer solutions?(i) CH3COONa (2 mol) + HCl (1 mol)(ii) CH3 COOH (2 mol) + NaOH (1 mol)(ii) CH3COOH (1 mol) + CH3COONa (1 mol)(1) (iii)(2) (i), (ii)(3) (ii), (iii)(4) (i), (ii), (ii)
Answer» Which of the following combinations will make a buffer solutions?(i) CH3COONa (2 mol) + HCl (1 mol)(ii) CH3 COOH (2 mol) + NaOH (1 mol)(ii) CH3COOH (1 mol) + CH3COONa (1 mol)(1) (iii)(2) (i), (ii)(3) (ii), (iii)(4) (i), (ii), (ii)

Discussion

35.	Figure shows a vessel partitioned by a fixed diathermic separation. Different ideal gases are filled in the two parts. The rms speed of the molecules in the left pat equals the mean speed of the molecules in the right part. Calculate the ratio of the mass of a molecule in the left part to the mass of a molecule in the right part.
Answer» Figure shows a vessel partitioned by a fixed diathermic separation. Different ideal gases are filled in the two parts. The rms speed of the molecules in the left pat equals the mean speed of the molecules in the right part. Calculate the ratio of the mass of a molecule in the left part to the mass of a molecule in the right part.

Discussion

36.	What is catenation tendency of element??
Answer» What is catenation tendency of element??

Discussion

37.	58.Is methyl orange basic in nature
Answer» 58.Is methyl orange basic in nature

Discussion

38.	The fluoride of xenon with zero dipole moment is:
Answer» The fluoride of xenon with zero dipole moment is:

Discussion

39.	the concentration of NH_4+ IONS in an aqueous solution which is 0.02M NH3 & 0.01M KOH would be: kb=1.8×10^{-5
Answer» the concentration of NH_4+ IONS in an aqueous solution which is 0.02M NH3 & 0.01M KOH would be: kb=1.8×10^{-5

Discussion

40.	are introduced on benzene ring, the correct order of their inductive effect is:
Answer» are introduced on benzene ring, the correct order of their inductive effect is:

Discussion

41.	how to do addition of vectors?
Answer» how to do addition of vectors?

Discussion

42.	The equilibrium 2Cu1→Cuo+Cu2 in aqueous medium at 25∘ C shifts towards the left in the presence of
Answer» The equilibrium $2 C u^{1} \to C u^{o} + C u^{2}$ in aqueous medium at $25^{\circ} C$ shifts towards the left in the presence of

Discussion

43.	The enthalpy of vaporization of water at 100∘ C is 40.63 kJ mol−1. Its entropy of vaporization would be:
Answer» The enthalpy of vaporization of water at $100^{\circ} C$ is $40.63 {kJ mol}^{- 1}$ . Its entropy of vaporization would be:

Discussion

44.	Why are carbon and its compounds used as fuels for most applications?
Answer» Why are carbon and its compounds used as fuels for most applications?

Discussion

45.	why does chemical adsorption need high activation of energy
Answer» why does chemical adsorption need high activation of energy

Discussion

46.	can enzyme product complex again for the ES COMLEX
Answer» can enzyme product complex again for the ES COMLEX

Discussion

47.	Rules for drawing resonance srructure of organic compound
Answer» Rules for drawing resonance srructure of organic compound

Discussion

48.	When gas in a vessel expands its thermal energy decreases the process involved isA) isobaricB) isochoricC) isothermalD) adiabatic
Answer» When gas in a vessel expands its thermal energy decreases the process involved is A) isobaric B) isochoric C) isothermal D) adiabatic

Discussion

49.	The best sequence of reaction to prepare 3 - chloro aniline from benzene is
Answer» The best sequence of reaction to prepare 3 - chloro aniline from benzene is

Discussion

50.	Which of the following compound can form during the free radical chlorination of methane1)CH3Cl 2)C2H6 3)CCl4 4)all of these
Answer» Which of the following compound can form during the free radical chlorination of methane 1)CH3Cl 2)C2H6 3)CCl4 4)all of these

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The IUPAC name of the compound (CH3)2 CH CH2CH2Cl is

58^n can never ends with

How to calculate coefficient of viscosity? ?

For the reaction A(g)+2B(g)⇌2(g)+D(s), 2 moles of A, 3 moles of B and 1 mole of C are present in 10L vessel if KC for the reaction is 3.6, the reaction will proceed in:-

To an acidified dichromate solution, Na2O2 is added and shaken. What is observed?

A monoatomic gas is supplied 80j heat at constant pressure the internal energy of gas increases by

The rate of the reaction, 2A+B gives products is given by rate expression, rate = k(A)^1.5 (B)^0.5. If (A) is 2molar and (B) is 100molar, then the order of reaction will be?

The formula for calculation of n-factor (nf) for a disproportionation reaction is given as:

For a polybasic acid, the dissociation constants have different value for each steps, e.g.,H3A⇌H++H2A−; K=Ka1H2A−⇌H++HA2−; K=Ka2HA2−⇌H++A3−; K=Ka3What is the observed trend of dissociation constants in succesive stage?

Identify from the following reaction the reactants that undergo oxidation and reduction.a. Fe + S → FeSb. 2Ag2O → 4 Ag + O2 ↑c. 2Mg + O2 → 2MgOd. NiO + H2 → Ni + H2O

intermolecular hydrogen bonds are not present in1.CH3CH2OH2.CH3COOH3.C2H5NH24.CH3OCH3

Electronic configuration of four neutral atoms are given below. Which of the following elements would not be paramagnetic

List out the differences between Isobars and Isotopes

For a solution of 0.849gram of mercurous chloride in 50 g of HgCl2 the freezing point depression is 1.24^° C Kf for HgCl2 is 34.3. What is the state of mercurous chloride in HgCl

2 gram atom of A_2 reacts with 2 gram molecule of B_{4 }by this following reaction 2A_2(g)+3B_4(g)→4C which statement is true 1)A_{2 }is limmiting reagent 2)B_4 is limmiting reagent

Elaborative difference between EMF\:and electrode potential.

If 0.5 mole of BaCl2 is mixed with 0.2 mole of Na3PO4, the maximum number of moles of Ba3(PO4)2 that can be formed is

60. If the average atomic mass of chlorine is 35.5, then find the percentage abundance of the two isotopes of chlorine which have the mass number 35 and 37

A list of species having the formula XZ4 is given below: XeF4, SF4, SiF4, BF−4, BrF−4, [Cu(NH3)4]2+, [FeCl4]2−, [CoCl4]2− and [PtCl4]2−. Defining shape on the basis of the location of X and Z atoms, the total number of species having a square planar shape is

For the first order reaction A forms P, the temperature (T) dependent rate constant (k) was found to follow the equation log k = -(2000)1/T +60 . The pre-exponential factor A and the activation energy Ea, respectively are ( IIT 2009)

46. what is 2s2p mixing in MOT does it is the reason due to which above 14 electron sigma 2pz is written before pi

Assertion: All F-S-F angle in SF_2 is greater than 90^o but less than 180^o. Reason:The lone pair-bond pair repulsion is weaker than bond pair-bond pair repulsion

A Light of wavelength λ shines on a metal surface with intensity X, and the metal emits Y electrons per second of average energy Z. What will happen to Y and Z If X is doubled?

53. Molality of 100g of 20%(w/w) of aqueous common salt solution is approximately

Are lanthanum and actinium considered as d-block or f-block elements and why??

Which of the following set of quantum numbers is correct for an electron in 5d orbital?

Which is incorrect reaction in following :-

At 300 K and 1 atmospheric pressure, 10 mL of a hydrocarbon required 55 mL of O2 for complete combustion and 40 mL of CO2 is formed. The formula of the hydrocarbon is:

Which among the following will give tertiary alcohol on acid hydration?

43. Two liquid A And B on mixing produce warm solution which type of deviation from Raoult law does it show?

A sample of hard water contains 1 mg of CaCl2 and 1 mg MgCl2 per litre. Calculate the hardness of water in terms of CaCO3 present in per 106 parts of water.

The most basic among the following is:

Density of a gas is found to be 5.46 g/dm3 at 27 ∘C at 2 bar pressure. What will be its density at STP?

Which of the following combinations will make a buffer solutions?(i) CH3COONa (2 mol) + HCl (1 mol)(ii) CH3 COOH (2 mol) + NaOH (1 mol)(ii) CH3COOH (1 mol) + CH3COONa (1 mol)(1) (iii)(2) (i), (ii)(3) (ii), (iii)(4) (i), (ii), (ii)

What is catenation tendency of element??

58.Is methyl orange basic in nature

The fluoride of xenon with zero dipole moment is:

the concentration of NH_4+ IONS in an aqueous solution which is 0.02M NH3 & 0.01M KOH would be: kb=1.8×10^{-5

are introduced on benzene ring, the correct order of their inductive effect is:

how to do addition of vectors?

The equilibrium 2Cu1→Cuo+Cu2 in aqueous medium at 25∘ C shifts towards the left in the presence of

The enthalpy of vaporization of water at 100∘ C is 40.63 kJ mol−1. Its entropy of vaporization would be:

Why are carbon and its compounds used as fuels for most applications?​

why does chemical adsorption need high activation of energy

can enzyme product complex again for the ES COMLEX

Rules for drawing resonance srructure of organic compound

When gas in a vessel expands its thermal energy decreases the process involved isA) isobaricB) isochoricC) isothermalD) adiabatic

The best sequence of reaction to prepare 3 - chloro aniline from benzene is

Which of the following compound can form during the free radical chlorination of methane1)CH3Cl 2)C2H6 3)CCl4 4)all of these

Why are carbon and its compounds used as fuels for most applications?