46295 + Interview Questions in Chemistry

1.	Which of the following is the most stable arenonium or benzenium ion?
Answer» Which of the following is the most stable arenonium or benzenium ion?

Discussion

2.	when a positive charge inside a metallic shell of thickness t is moved then induced surface charge density
Answer» when a positive charge inside a metallic shell of thickness t is moved then induced surface charge density

Discussion

3.	what is the correct order of reducing nature of group 1 elements
Answer» what is the correct order of reducing nature of group 1 elements

Discussion

4.	1.What is Bosch's process and lane's process?2.What is nascent hydrogen? 3.What is knocking agent?
Answer» 1.What is Bosch's process and lane's process? 2.What is nascent hydrogen? 3.What is knocking agent?

Discussion

5.	Find EMF of cell Ni\|Ni2+\|\|Au3+\|Au if Ni2+\|Ni; E∘= −0.25V Au3+\|Au; E∘ = 1.5V
Answer» Find EMF of cell $N i \| N i^{2 +} \| \| A u^{3 +} \| A u$ if $N i^{2 +} \| N i; E^{\circ} = - 0.25 V$ $A u^{3 +} \| A u; E^{\circ} = 1.5 V$

Discussion

6.	Trouve des questions:1. Oui, j'ai les miens. .................................................2. Il va chez le pharmacien. .................................................3. Je préfère la robe en soie. .................................................4. C'est la vedette Deepika Padukone. .................................................5. Un café, s'il vous plaît. .................................................
Answer» Trouve des questions: 1. Oui, j'ai les miens. ................................................. 2. Il va chez le pharmacien. ................................................. 3. Je préfère la robe en soie. ................................................. 4. C'est la vedette Deepika Padukone. ................................................. 5. Un café, s'il vous plaît. .................................................

Discussion

7.	The third ionisation energy is maximum for:(A) Nitrogen (B) Phosphorus (C) Aluminium (D) Boron
Answer» The third ionisation energy is maximum for: (A) Nitrogen (B) Phosphorus (C) Aluminium (D) Boron

Discussion

8.	[M(NH3)2(py)2(NO2)2]+NH3−−−−→−NO2[M(NH3)3(py)2(NO2)]. Difference between possible geometrical isomers of reactant and product is:
Answer» $[M (N H_{3})_{2} (p y)_{2} (N O_{2})_{2}] + N H_{3} - --- \to - N O_{2} [M (N H_{3})_{3} (p y)_{2} (N O_{2})]$ . Difference between possible geometrical isomers of reactant and product is:

Discussion

9.	Compare the structures of H2O and H2O2.
Answer» Compare the structures of $H_{2} O$ and $H_{2} O_{2}$ .

Discussion

10.	The correct order of basicities of the following compounds is:
Answer» The correct order of basicities of the following compounds is:

10.

The correct order of basicities of the following compounds is:

Answer»

The correct order of basicities of the following compounds is:

Discussion

11.	Which of the following reaction is not given by aniline?
Answer» Which of the following reaction is not given by aniline?

Discussion

12.	if an eletron weighs 9.08×10‐³¹ kg.then how many moles of eletron are there in 1 kg of eletron.
Answer» if an eletron weighs 9.08×10‐³¹ kg.then how many moles of eletron are there in 1 kg of eletron.

Discussion

13.	Select the correct order of magnetic moment (in B.M.) from the following options:
Answer» Select the correct order of magnetic moment (in B.M.) from the following options:

Discussion

14.	Which is more strong bond - Pπ - pπ. Or dπ - dπ ?
Answer» Which is more strong bond - Pπ - pπ. Or dπ - dπ ?

Discussion

15.	Salinehydrides are known to react with water violently producing fire. CanCO2,a well known fire extinguisher, be used in this case? Explain.
Answer» Saline hydrides are known to react with water violently producing fire. Can CO₂, a well known fire extinguisher, be used in this case? Explain.

Discussion

16.	Least soluble alcohol in water is :
Answer» Least soluble alcohol in water is :

Discussion

17.	Decay of nitrogeneous organic matter will produce _____.
Answer» Decay of nitrogeneous organic matter will produce _____.

Discussion

18.	What will be the order of the lattice energy of the following: CaO, MgBr2, NaCl, CaCl2, MgCl2? Also does the compounds with smaller cation and larger anion have more lattice energy or those with the ions of comparable size as they would fit better in a lattice?
Answer» What will be the order of the lattice energy of the following: CaO, MgBr2, NaCl, CaCl2, MgCl2? Also does the compounds with smaller cation and larger anion have more lattice energy or those with the ions of comparable size as they would fit better in a lattice?

Discussion

19.	The IUPAC name of the following compound is:CH3−CH3\|C\|CH3−CH3
Answer» The IUPAC name of the following compound is: $C H_{3} - C H_{3} \| C \| C H_{3} - C H_{3}$

19.

The IUPAC name of the following compound is:CH3−CH3|C|CH3−CH3

Answer»

The IUPAC name of the following compound is:

$C H_{3} - C H_{3} | C | C H_{3} - C H_{3}$

Discussion

20.	otal number of isomeric products (includingtereoisomers) obtained when 2-chlorobutane isheated with alcohölic KOH isTwo(1) Oneс.(4) FourThree
Answer» otal number of isomeric products (includingtereoisomers) obtained when 2-chlorobutane isheated with alcohölic KOH isTwo(1) Oneс.(4) FourThree

Discussion

21.	The following equilibrium constants are givenN2+3H2⇌2NH3;K1N2+O2⇌2NO;K2H2+12O2⇌H2O;K3The equilibrium constant for the oxidation of the NH3 by oxygen to give NO is:
Answer» The following equilibrium constants are given $N_{2} + 3 H_{2} ⇌ 2 N H_{3}; K_{1}$ $N_{2} + O_{2} ⇌ 2 N O; K_{2}$ $H_{2} + \frac{1}{2} O_{2} ⇌ H_{2} O; K_{3}$ The equilibrium constant for the oxidation of the $N H_{3}$ by oxygen to give $N O$ is:

Discussion

22.	1.520 g of a hydroxide of a metal on ignition gave 0.995 g of an oxide of the same metal. The equivalent weight of the metal is _______.
Answer» $1.520 g$ of a hydroxide of a metal on ignition gave $0.995 g$ of an oxide of the same metal. The equivalent weight of the metal is _______.

Discussion

23.	1. Most reactive metals
Answer» 1. Most reactive metals

Discussion

24.	Write the down the balanced chemical equation of the follwing reactions:-(i)Zn granules when added to dil. nitric acid?(ii)Zn granules when added to acetic acid?
Answer» Write the down the balanced chemical equation of the follwing reactions:- (i)Zn granules when added to dil. nitric acid? (ii)Zn granules when added to acetic acid?

Discussion

25.	iupac name of the formula C(CH3)4 IS ?
Answer» iupac name of the formula C(CH3)4 IS ?

Discussion

26.	how many structural isomer are possible when one of the hydrogen in compound given below is replaced by chlorine atom. diphenylmethyl is the compound: (1) 6 (2) 4 (3) 8 (4)7
Answer» how many structural isomer are possible when one of the hydrogen in compound given below is replaced by chlorine atom. diphenylmethyl is the compound: (1) 6 (2) 4 (3) 8 (4)7

Discussion

27.	Lanthanoid contraction is due to increase in:
Answer» Lanthanoid contraction is due to increase in:

Discussion

28.	Which of the following is stated by Aufbau Principle?
Answer» Which of the following is stated by Aufbau Principle?

Discussion

29.	1g of metal M with specific heat 0.06 combines with oxygen to form 1.08g of its oxide. What is the atomic weight of metal?
Answer» 1g of metal M with specific heat 0.06 combines with oxygen to form 1.08g of its oxide. What is the atomic weight of metal?

Discussion

30.	Which of the following compound(s) show ortho effect?
Answer» Which of the following compound(s) show ortho effect?

Discussion

31.	Given, that E∘O2/H2O=+1.23V;E∘S2O2−8/SO2−4=2.05 V;E∘Br2/Br⊝=+1.09 VE∘Au3+/Au=+1.4 VThe strongest oxidising agent is:
Answer» Given, that $E_{O_{2} / H_{2} O}^{\circ} = + 1.23 V;$ $E_{S_{2} O_{8}^{2 -} / S O_{4}^{2 -}}^{\circ} = 2.05 V;$ $E_{B r_{2} / B r^{⊝}}^{\circ} = + 1.09 V$ $E_{A u^{3 +} / A u}^{\circ} = + 1.4 V$ The strongest oxidising agent is:

Discussion

32.	whatis difference between the acidified solution of copper and cuso4 solution?
Answer» whatis difference between the acidified solution of copper and cuso4 solution?

Discussion

33.	Molar mass of caffeine is 194. If it contains 28.9% of nitrogen by mass, calculate the number of nitrogen atoms in one molecule of caffeine .
Answer» Molar mass of caffeine is 194. If it contains 28.9% of nitrogen by mass, calculate the number of nitrogen atoms in one molecule of caffeine .

Discussion

34.	in cleavage of the ether CH2-O-CH2-CH3, why CH2-X is formed and not CH3-CH2-X?
Answer» in cleavage of the ether CH2-O-CH2-CH3, why CH2-X is formed and not CH3-CH2-X?

Discussion

35.	pH of a 10−3 M solution of hydrochloric acid will be
Answer» pH of a $10^{- 3}$ M solution of hydrochloric acid will be

Discussion

36.	Total number of atoms purely present in a hexagonal close packing unit cell which are not shared by adjacent unit cell is/are1236
Answer» Total number of atoms purely present in a hexagonal close packing unit cell which are not shared by adjacent unit cell is/are 1 2 3 6

Discussion

37.	The pH of a solution containing 0.4 M HCO−3 and 0.2 M CO2−3 is: [Ka1(H2CO3)=4×10−7;Ka2(HCO−3)=4×10−11] (Given, log 4=0.60, log 0.5=−0.3)
Answer» The $p H$ of a solution containing $0.4 M$ $H C O_{3}^{-}$ and $0.2 M$ $C O_{3}^{2 -}$ is: $[K_{a_{1}} (H_{2} C O_{3}) = 4 \times 10^{- 7}; K_{a_{2}} (H C O_{3}^{-}) = 4 \times 10^{- 11}]$ $(G i v e n, l o g 4 = 0.60, l o g 0.5 = - 0.3)$

Discussion

38.	For water ΔvapH=41kJ mol−1 at 373 K and 1 bar pressure. Assuming that water vapour is an ideal gas the that occupies a much larger volume than liquid water, the internal energy change during evaporation of water is ___kJ mol−1.[Use : R=8.3 J mol−1K−1]
Answer» For water $Δ_{v a p} H = 41 k J {mol}^{- 1}$ at $373 K$ and 1 bar pressure. Assuming that water vapour is an ideal gas the that occupies a much larger volume than liquid water, the internal energy change during evaporation of water is ___ $k J {mol}^{- 1}$ . [Use : $R = 8.3 J {mol}^{- 1} K^{- 1}$ ]

Discussion

39.	69 What is the structural formula of -- isopropyl alcohol.
Answer» 69 What is the structural formula of -- isopropyl alcohol.

Discussion

40.	Predict the major product in the following reaction :
Answer» Predict the major product in the following reaction :

Discussion

41.	Limx→0 tanx+4tan2x-3tan3x/x^2tanx By l-hospital rule
Answer» Limx→0 tanx+4tan2x-3tan3x/x^2tanx By l-hospital rule

Discussion

42.	Describe about precipitation reaction.
Answer» Describe about precipitation reaction.

Discussion

43.	a 1st order reaction has rate cons†an t of 3×10^{-3} s-1 the time required for a reac†an t from 8 g to 4 g is
Answer» a 1st order reaction has rate cons†an t of 3×10^{-3} s-1 the time required for a reac†an t from 8 g to 4 g is

Discussion

44.	What is Amitotic dividion? What is gram positive and gram negative in detail?
Answer» What is Amitotic dividion? What is gram positive and gram negative in detail?

Discussion

45.	The equivalent mass of KMnO4 in acidic medium is (molar mass of KMnO4 = 158 g/mol)
Answer» The equivalent mass of $K M n O_{4}$ in acidic medium is (molar mass of $K M n O_{4}$ = 158 g/mol)

Discussion

46.	Diatomic molecule, KBr has dipole moment 2.4 D and the internuclear dis†an ce is 100 pm. The percentage of electronic charge existing on more electronegative atom is a-33% b-66% c- 50% d-25%
Answer» Diatomic molecule, KBr has dipole moment 2.4 D and the internuclear dis†an ce is 100 pm. The percentage of electronic charge existing on more electronegative atom is a-33% b-66% c- 50% d-25%

Discussion

47.	The chemical composition of slag formed during the smelting process in the extraction of copper is (IIT-JEE, 2001)
Answer» The chemical composition of slag formed during the smelting process in the extraction of copper is (IIT-JEE, 2001)

Discussion

48.	Does pure water conduct electricity? If not, what can we do to make it conduct?
Answer» Does pure water conduct electricity? If not, what can we do to make it conduct?

Discussion

49.	What is the smallest amount of charge that can be added to a body?
Answer» What is the smallest amount of charge that can be added to a body?

Discussion

50.	ferric oxide crystallises in a hcp of oxide ions with two out of every three octhedral voids occupied by ferric ions.derive the formula of ferric oxid
Answer» ferric oxide crystallises in a hcp of oxide ions with two out of every three octhedral voids occupied by ferric ions.derive the formula of ferric oxid

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Which of the following is the most stable arenonium or benzenium ion?

when a positive charge inside a metallic shell of thickness t is moved then induced surface charge density

what is the correct order of reducing nature of group 1 elements

1.What is Bosch's process and lane's process?2.What is nascent hydrogen? 3.What is knocking agent?

Find EMF of cell Ni|Ni2+||Au3+|Au if Ni2+|Ni; E∘= −0.25V Au3+|Au; E∘ = 1.5V

The third ionisation energy is maximum for:(A) Nitrogen (B) Phosphorus (C) Aluminium (D) Boron

[M(NH3)2(py)2(NO2)2]+NH3−−−−→−NO2[M(NH3)3(py)2(NO2)]. Difference between possible geometrical isomers of reactant and product is:

Compare the structures of H2O and H2O2.

The correct order of basicities of the following compounds is:

Which of the following reaction is not given by aniline?

if an eletron weighs 9.08×10‐³¹ kg.then how many moles of eletron are there in 1 kg of eletron.

Select the correct order of magnetic moment (in B.M.) from the following options:

Which is more strong bond - Pπ - pπ. Or dπ - dπ ?

Salinehydrides are known to react with water violently producing fire. CanCO2,a well known fire extinguisher, be used in this case? Explain.

Least soluble alcohol in water is :

Decay of nitrogeneous organic matter will produce _____.

What will be the order of the lattice energy of the following: CaO, MgBr2, NaCl, CaCl2, MgCl2? Also does the compounds with smaller cation and larger anion have more lattice energy or those with the ions of comparable size as they would fit better in a lattice?

The IUPAC name of the following compound is:CH3−CH3|C|CH3−CH3

otal number of isomeric products (includingtereoisomers) obtained when 2-chlorobutane isheated with alcohölic KOH isTwo(1) Oneс.(4) FourThree

The following equilibrium constants are givenN2+3H2⇌2NH3;K1N2+O2⇌2NO;K2H2+12O2⇌H2O;K3The equilibrium constant for the oxidation of the NH3 by oxygen to give NO is:

1.520 g of a hydroxide of a metal on ignition gave 0.995 g of an oxide of the same metal. The equivalent weight of the metal is _______.

1. Most reactive metals

Write the down the balanced chemical equation of the follwing reactions:-(i)Zn granules when added to dil. nitric acid?(ii)Zn granules when added to acetic acid?

iupac name of the formula C(CH3)4 IS ?

how many structural isomer are possible when one of the hydrogen in compound given below is replaced by chlorine atom. diphenylmethyl is the compound: (1) 6 (2) 4 (3) 8 (4)7

Lanthanoid contraction is due to increase in:

Which of the following is stated by Aufbau Principle?

1g of metal M with specific heat 0.06 combines with oxygen to form 1.08g of its oxide. What is the atomic weight of metal?

Which of the following compound(s) show ortho effect?

Given, that E∘O2/H2O=+1.23V;E∘S2O2−8/SO2−4=2.05 V;E∘Br2/Br⊝=+1.09 VE∘Au3+/Au=+1.4 VThe strongest oxidising agent is:

whatis difference between the acidified solution of copper and cuso4 solution?

Molar mass of caffeine is 194. If it contains 28.9% of nitrogen by mass, calculate the number of nitrogen atoms in one molecule of caffeine .

in cleavage of the ether CH2-O-CH2-CH3, why CH2-X is formed and not CH3-CH2-X?

pH of a 10−3 M solution of hydrochloric acid will be

Total number of atoms purely present in a hexagonal close packing unit cell which are not shared by adjacent unit cell is/are1236

The pH of a solution containing 0.4 M HCO−3 and 0.2 M CO2−3 is: [Ka1(H2CO3)=4×10−7;Ka2(HCO−3)=4×10−11] (Given, log 4=0.60, log 0.5=−0.3)

69 What is the structural formula of -- isopropyl alcohol.

Predict the major product in the following reaction :

Limx→0 tanx+4tan2x-3tan3x/x^2tanx By l-hospital rule

Describe about precipitation reaction.

a 1st order reaction has rate cons†an t of 3×10^{-3} s-1 the time required for a reac†an t from 8 g to 4 g is

What is Amitotic dividion? What is gram positive and gram negative in detail?

The equivalent mass of KMnO4 in acidic medium is (molar mass of KMnO4 = 158 g/mol)

Diatomic molecule, KBr has dipole moment 2.4 D and the internuclear dis†an ce is 100 pm. The percentage of electronic charge existing on more electronegative atom is a-33% b-66% c- 50% d-25%

The chemical composition of slag formed during the smelting process in the extraction of copper is (IIT-JEE, 2001)

Does pure water conduct electricity? If not, what can we do to make it conduct?

What is the smallest amount of charge that can be added to a body?

ferric oxide crystallises in a hcp of oxide ions with two out of every three octhedral voids occupied by ferric ions.derive the formula of ferric oxid