46295 + Interview Questions in Chemistry

1.	Find the total number of electrons in Mn (z=25) for which m=1
Answer» Find the total number of electrons in Mn (z=25) for which m=1

Discussion

2.	If the velocity of a particle is v=At+Bt, whereA and B are constants, then the distance travelled by it between 1 s and 2 s is
Answer» If the velocity of a particle is v=At+Bt, whereA and B are constants, then the distance travelled by it between 1 s and 2 s is

Discussion

3.	what can be prefix and sufix of acid and aldehyde can be decided
Answer» what can be prefix and sufix of acid and aldehyde can be decided

Discussion

4.	On the basis of following E∘ values, the strongest oxidising agent is: [Fe(CN)4]4−→[Fe(CN)6]3−+e− E∘=−0.35 VFe2+→Fe3++e−E∘=−0.77 V
Answer» On the basis of following $E^{\circ}$ values, the strongest oxidising agent is: $[F e (C N)_{4}]^{4^{-}} \to [F e (C N)_{6}]^{3 -} + e^{-}$ $\begin{matrix} E^{\circ} = - 0.35 V F e^{2 +} \to F e^{3 +} + e^{-} & E^{\circ} = - 0.77 V \end{matrix}$

Discussion

5.	For the reaction CaCO3(s) ⇋ CaO(s) + CO2(g) the partial pressure of CO2 (at equilibrium) depends on:
Answer» For the reaction $C a C O_{3}$ (s) $⇋$ $C a O$ (s) + $C O_{2}$ (g) the partial pressure of $C O_{2}$ (at equilibrium) depends on:

Discussion

6.	Which one of the following complexes will have four different isomers?
Answer» Which one of the following complexes will have four different isomers?

Discussion

7.	Correct orders of 1st I.P. are -(i) Li < B < Be < C (ii) O < N < F(iii) Be < N < Ne
Answer» Correct orders of $1 s t$ I.P. are - (i) Li < B < Be < C (ii) O < N < F (iii) Be < N < Ne

7.

Correct orders of 1st I.P. are -(i) Li < B < Be < C (ii) O < N < F(iii) Be < N < Ne

Answer»

Correct orders of $1 s t$ I.P. are -

(i) Li < B < Be < C

(ii) O < N < F

(iii) Be < N < Ne

Discussion

8.	Consider the following reactions:(i) Cu+HNO3(dil.)→(ii) Cu+HNO3(conc.)→(iii) Zn+HNO3(20%)→(iv) Zn+HNO3(60%)→ Total number of reactions in which N2 is released is/are:
Answer» Consider the following reactions: $(i) C u + H N O_{3} (d i l .) \to$ $(i i) C u + H N O_{3} (c o n c .) \to$ $(i i i) Z n + H N O_{3} (20 %) \to$ $(i v) Z n + H N O_{3} (60 %) \to$ Total number of reactions in which $N_{2}$ is released is/are:

Discussion

9.	The ratio of energy of a photon of radiation of wavelength 2000 ∘A to that of a radiation of wavelength 4000 ∘A is:
Answer» The ratio of energy of a photon of radiation of wavelength $2000 \circ A$ to that of a radiation of wavelength $4000 \circ A$ is:

Discussion

10.	3CHCHCu,500∘C−−−−−−→A;A+3H2Ni−→B Identify correct statement
Answer» $3 C H C H C u, 500^{\circ} C - ----- \to A; A + 3 H_{2} N i - \to B$ Identify correct statement

Discussion

11.	Explain the hollow cylinder with area and volume
Answer» Explain the hollow cylinder with area and volume

Discussion

12.	what is coulumbs law in detail and simple language
Answer» what is coulumbs law in detail and simple language

Discussion

13.	what is meaning of isotope
Answer» what is meaning of isotope

Discussion

14.	Major product of the given elimination reaction is:
Answer» Major product of the given elimination reaction is:

Discussion

15.	Can you help me with all the formulas we are gonna use in Chapter Atomic Structure of class XI Chemistry? From CBSE level question to the JEE level questions? ALL FORMULAE!
Answer» Can you help me with all the formulas we are gonna use in Chapter Atomic Structure of class XI Chemistry? From CBSE level question to the JEE level questions? ALL FORMULAE!

15.

Can you help me with all the formulas we are gonna use in Chapter Atomic Structure of class XI Chemistry? From CBSE level question to the JEE level questions? ALL FORMULAE!

Answer»

Can you help me with all the formulas we are gonna use in Chapter Atomic Structure of class XI Chemistry?

From CBSE level question to the JEE level questions?

ALL FORMULAE!

Discussion

16.	Dihedral angle of least stable conformer of ethane is :
Answer» Dihedral angle of least stable conformer of ethane is :

Discussion

17.	If a reaction has the experimental rate expression rate = K[A]2[B], if the concentration of A is doubled and the concentration of B is halved, the what happens to the reaction rate:-
Answer» If a reaction has the experimental rate expression rate = $K [A]^{2} [B]$ , if the concentration of A is doubled and the concentration of B is halved, the what happens to the reaction rate:-

Discussion

18.	11. What is the maximum number of electrons which can be accomodated in an atom in which the highest principal quantum number is 4 :- (1)10 (2)18 (3)36 (4)54
Answer» 11. What is the maximum number of electrons which can be accomodated in an atom in which the highest principal quantum number is 4 :- (1)10 (2)18 (3)36 (4)54

Discussion

19.	Boiling point of 0.01 M AB2 which is 10%dissociated in aqueous medium (Kb = 0.52) as A2 and B(1) 273.006 K(2) 373.006 K(3) 0.006 k(4) 272.006
Answer» Boiling point of 0.01 M AB2 which is 10%dissociated in aqueous medium (Kb = 0.52) as A2 and B(1) 273.006 K(2) 373.006 K(3) 0.006 k(4) 272.006

Discussion

20.	Among the following which is an exchange reaction?
Answer» Among the following which is an exchange reaction?

Discussion

21.	21. How rate of reaction is calculated.
Answer» 21. How rate of reaction is calculated.

Discussion

22.	What are the major differences between dilute and concentrated acids?
Answer» What are the major differences between dilute and concentrated acids?

Discussion

23.	Which molecule will combine with the four-carbon oxaloacetate in the Krebs cycle to form the six-carbon citrate?
Answer» Which molecule will combine with the four-carbon oxaloacetate in the Krebs cycle to form the six-carbon citrate?

Discussion

24.	Bond dissociaton enthalpy of H2, Cl2 and HCl are 434, 242 and 431 kJ mol-1 respectively. Enthalpy of formation of HCl is
Answer» Bond dissociaton enthalpy of H2, Cl2 and HCl are 434, 242 and 431 kJ mol-1 respectively. Enthalpy of formation of HCl is

Discussion

25.	आशयस्पष्ट कीजिए−इम्तिहानपास कर लेना कोईचीज़ नहीं,असलचीज़ है बुद्धिका विकास।
Answer» आशय स्पष्ट कीजिए − इम्तिहान पास कर लेना कोई चीज़ नहीं, असल चीज़ है बुद्धि का विकास।

25.

आशयस्पष्ट कीजिए−इम्तिहानपास कर लेना कोईचीज़ नहीं,असलचीज़ है बुद्धिका विकास।

Answer»

आशय
स्पष्ट कीजिए
−

इम्तिहान
पास कर लेना कोई
चीज़ नहीं,
असल
चीज़ है बुद्धि
का विकास।

Discussion

26.

5.00 mL of 0.10 M oxalic acid solution taken in a conical flask is titrated against NaOH from a burette using phenolphthalein indicator. The volume of NaOH required for the appearance of permanent faint pink color is tabulated below for five experiments. What is the concentration, in molarity, of the NaOH solution? Exp. No. Vol. of NaOH (mL) 1 12.5 2 10.5 3 9.0 4 9.0 5 9.0

Answer»

5.00 mL

of

0.10 M

oxalic acid solution taken in a conical flask is titrated against

N a O H

from a burette using phenolphthalein indicator. The volume of

N a O H

required for the appearance of permanent faint pink color is tabulated below for five experiments. What is the concentration, in molarity, of the

N a O H

solution?

Exp. No.	Vol. of NaOH (mL)
1	12.5
2	10.5
3	9.0
4	9.0
5	9.0

Discussion

27.	56 How 1- Methyl cyclopentane reacts with bromine? What product is formed and how?
Answer» 56 How 1- Methyl cyclopentane reacts with bromine? What product is formed and how?

Discussion

28.	in the ground state an element has 13 electrons in its M-shell. the element i
Answer» in the ground state an element has 13 electrons in its M-shell. the element i

Discussion

29.	to find oxidation no of central bromine atom in Br_3O_{
Answer» to find oxidation no of central bromine atom in Br_3O_{

Discussion

30.	An alkene on ozonolysis gives acetone as one of the product. The structure of alkene is:
Answer» An alkene on ozonolysis gives acetone as one of the product. The structure of alkene is:

Discussion

31.	LPG is a mixture of
Answer» LPG is a mixture of

Discussion

32.	What are reversible and irreversible changes? Give one example of each.
Answer» What are reversible and irreversible changes? Give one example of each.

Discussion

33.	The standard E.M.F of the cell written as Cd(Hg)\|CdSO4.83H2O(s)\|\|CdSO4(sat.)\|Hg2SO4(s)\|Hg in which the cell reaction is Cd(Hg)+Hg2SO4(s)+83H2O(l)⇌CdSO4.83H2O(s)+2Hg(l) is 1.0185 V at 25oC. Calculate ΔSo for the cell reaction if (∂Eo∂T)P for the cell is 5.00×10−5 V K−1Take, F=96485 C mol−1
Answer» The standard E.M.F of the cell written as $C d (H g) \| C d S O_{4} . \frac{8}{3} H_{2} O (s) \| \| C d S O_{4} (s a t .) \| H g_{2} S O_{4} (s) \| H g$ in which the cell reaction is $C d (H g) + H g_{2} S O_{4} (s) + \frac{8}{3} H_{2} O (l) ⇌ C d S O_{4} . \frac{8}{3} H_{2} O (s) + 2 H g (l)$ is $1.0185 V$ at $25^{o} C$ . Calculate $Δ S^{o}$ for the cell reaction if ${(\frac{\partial E^{o}}{\partial T})}_{P}$ for the cell is $5.00 \times 10^{- 5} V K^{- 1}$ Take, $F = 96485 C m o l^{- 1}$

Discussion

34.	What are the various steps of scientific methods ?
Answer» What are the various steps of scientific methods ?

Discussion

35.	Why benzoic acid is stronger than acetic acid but weaker than formic acid?
Answer» Why benzoic acid is stronger than acetic acid but weaker than formic acid?

Discussion

36.	The relative rates of mononitration of R−C6H5, where R=−CH3,−NO2,−OH,−Cl are
Answer» The relative rates of mononitration of $R - C_{6} H_{5},$ where $R = - C H_{3}, - N O_{2}, - O H, - C l$ are

Discussion

37.	what is the formula and the rules to calculate the formal charge of an ion
Answer» what is the formula and the rules to calculate the formal charge of an ion

Discussion

38.	Assertion (A): Sodium metal is stored in keroseneReason (R): The density of sodium is less than water
Answer» Assertion (A): Sodium metal is stored in kerosene Reason (R): The density of sodium is less than water

38.

Assertion (A): Sodium metal is stored in keroseneReason (R): The density of sodium is less than water

Answer»

Assertion (A): Sodium metal is stored in kerosene

Reason (R): The density of sodium is less than water

Discussion

39.	Can you please provide questions on mole concept for practice
Answer» Can you please provide questions on mole concept for practice

Discussion

40.	For the processes K+(g) I⟶ K(g) II⟶K−(g)
Answer» For the processes $K^{+} (g) I ⟶ K (g) I I ⟶ K^{-} (g)$

Discussion

41.	Question 4 (c)Copper displaces zinc from zinc sulphate solution. (True/False)
Answer» Question 4 (c) Copper displaces zinc from zinc sulphate solution. (True/False)

Discussion

42.	Which of the following alkyl bromides will undergo the SN2 reaction the fastest?
Answer» Which of the following alkyl bromides will undergo the $S_{N} 2$ reaction the fastest?

Discussion

43.	.08333 g of carbohydrate of empirical formula ch2o has 1 g of h2 find molecular formula
Answer» .08333 g of carbohydrate of empirical formula ch2o has 1 g of h2 find molecular formula

Discussion

44.	What is the entropy change when 1 mole oxygen gas expands isothermally and reversibly from an initial volume of 10 L to 100 L at 300 K?
Answer» What is the entropy change when 1 mole oxygen gas expands isothermally and reversibly from an initial volume of 10 L to 100 L at 300 K?

Discussion

45.	"Jaya" and "Ratna" developed for the green revolution in India are the varieties of:
Answer» "Jaya" and "Ratna" developed for the green revolution in India are the varieties of:

Discussion

46.	Which of the following is least reactive towards SN1?
Answer» Which of the following is least reactive towards $S N^{1}$ ?

Discussion

47.	the number of watermolecule in adrop of waterweighing 0.018
Answer» the number of watermolecule in adrop of waterweighing 0.018

Discussion

48.	Which of the following statement is of false?
Answer» Which of the following statement is of false?

Discussion

49.	Calculate the ratio of area of second Orbit with fourth Orbit in hydrogen atom
Answer» Calculate the ratio of area of second Orbit with fourth Orbit in hydrogen atom

Discussion

50.	nt1,6 DIOL-CYCLOALKANE REACT WITH H2SO4/H+n ntPRODUCT OF THIS REACTION WILL BEn nt1-CYCLOPENTANE CARBALDEHYEn nt2-2-HYDROXY CYCLOHEXANONEn nt3-CYCLOHEXANONEn nt4-ALL OF THESn
Answer» nt1,6 DIOL-CYCLOALKANE REACT WITH H2SO4/H+n ntPRODUCT OF THIS REACTION WILL BEn nt1-CYCLOPENTANE CARBALDEHYEn nt2-2-HYDROXY CYCLOHEXANONEn nt3-CYCLOHEXANONEn nt4-ALL OF THESn

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Find the total number of electrons in Mn (z=25) for which m=1

If the velocity of a particle is v=At+Bt, whereA and B are constants, then the distance travelled by it between 1 s and 2 s is

what can be prefix and sufix of acid and aldehyde can be decided

On the basis of following E∘ values, the strongest oxidising agent is: [Fe(CN)4]4−→[Fe(CN)6]3−+e− E∘=−0.35 VFe2+→Fe3++e−E∘=−0.77 V

For the reaction CaCO3(s) ⇋ CaO(s) + CO2(g) the partial pressure of CO2 (at equilibrium) depends on:

Which one of the following complexes will have four different isomers?

Correct orders of 1st I.P. are -(i) Li &lt; B &lt; Be &lt; C (ii) O &lt; N &lt; F(iii) Be &lt; N &lt; Ne

Consider the following reactions:(i) Cu+HNO3(dil.)→(ii) Cu+HNO3(conc.)→(iii) Zn+HNO3(20%)→(iv) Zn+HNO3(60%)→ Total number of reactions in which N2 is released is/are:

The ratio of energy of a photon of radiation of wavelength 2000 ∘A to that of a radiation of wavelength 4000 ∘A is:

3CHCHCu,500∘C−−−−−−→A;A+3H2Ni−→B Identify correct statement

Explain the hollow cylinder with area and volume

what is coulumbs law in detail and simple language

what is meaning of isotope

Major product of the given elimination reaction is:

Can you help me with all the formulas we are gonna use in Chapter Atomic Structure of class XI Chemistry? From CBSE level question to the JEE level questions? ALL FORMULAE!

Dihedral angle of least stable conformer of ethane is :

If a reaction has the experimental rate expression rate = K[A]2[B], if the concentration of A is doubled and the concentration of B is halved, the what happens to the reaction rate:-

11. What is the maximum number of electrons which can be accomodated in an atom in which the highest principal quantum number is 4 :- (1)10 (2)18 (3)36 (4)54

Boiling point of 0.01 M AB2 which is 10%dissociated in aqueous medium (Kb = 0.52) as A2 and B(1) 273.006 K(2) 373.006 K(3) 0.006 k(4) 272.006

Among the following which is an exchange reaction?

21. How rate of reaction is calculated.

What are the major differences between dilute and concentrated acids?

Which molecule will combine with the four-carbon oxaloacetate in the Krebs cycle to form the six-carbon citrate?

Bond dissociaton enthalpy of H2, Cl2 and HCl are 434, 242 and 431 kJ mol-1 respectively. Enthalpy of formation of HCl is

आशयस्पष्ट कीजिए−इम्तिहानपास कर लेना कोईचीज़ नहीं,असलचीज़ है बुद्धिका विकास।

56 How 1- Methyl cyclopentane reacts with bromine? What product is formed and how?

in the ground state an element has 13 electrons in its M-shell. the element i

to find oxidation no of central bromine atom in Br_3O_{

An alkene on ozonolysis gives acetone as one of the product. The structure of alkene is:

LPG is a mixture of

What are reversible and irreversible changes? Give one example of each.

What are the various steps of scientific methods ?

Why benzoic acid is stronger than acetic acid but weaker than formic acid?

The relative rates of mononitration of R−C6H5, where R=−CH3,−NO2,−OH,−Cl are

what is the formula and the rules to calculate the formal charge of an ion

Assertion (A): Sodium metal is stored in keroseneReason (R): The density of sodium is less than water

Can you please provide questions on mole concept for practice

For the processes K+(g) I⟶ K(g) II⟶K−(g)

Question 4 (c)Copper displaces zinc from zinc sulphate solution. (True/False)

Which of the following alkyl bromides will undergo the SN2 reaction the fastest?

.08333 g of carbohydrate of empirical formula ch2o has 1 g of h2 find molecular formula

What is the entropy change when 1 mole oxygen gas expands isothermally and reversibly from an initial volume of 10 L to 100 L at 300 K?

"Jaya" and "Ratna" developed for the green revolution in India are the varieties of:

Which of the following is least reactive towards SN1?

the number of watermolecule in adrop of waterweighing 0.018

Which of the following statement is of false?

Calculate the ratio of area of second Orbit with fourth Orbit in hydrogen atom

nt1,6 DIOL-CYCLOALKANE REACT WITH H2SO4/H+n ntPRODUCT OF THIS REACTION WILL BEn nt1-CYCLOPENTANE CARBALDEHYEn nt2-2-HYDROXY CYCLOHEXANONEn nt3-CYCLOHEXANONEn nt4-ALL OF THESn

Correct orders of 1st I.P. are -(i) Li < B < Be < C (ii) O < N < F(iii) Be < N < Ne