46295 + Interview Questions in Chemistry

1.	For which of the following reactions does the equilibrium constant depend on the units of concentration
Answer» For which of the following reactions does the equilibrium constant depend on the units of concentration

1.

For which of the following reactions does the equilibrium constant depend on the units of concentration

Answer»

For which of the following reactions does the equilibrium constant

depend on the units of concentration

2.	The species Ar,K+ and Ca2+ contain the same number of electrons. In which order do their radii increase?
Answer» The species $A r, K^{+} a n d C a^{2 +}$ contain the same number of electrons. In which order do their radii increase?

Discussion

3.	Match the List - I with List - II and select the correct set from the following sets given below: List - IList - II(A)The number of subshells in an(1)n2energy level(B)The number orbitals in a (2)3dshell(C)The number of orbitals in a subshell(3)2l+1(D)n=3, l=2(4)n
Answer» Match the List - I with List - II and select the correct set from the following sets given below: $\begin{matrix} List - I & List - II (A) & The number of subshells in an & (1) & n^{2} energy level (B) & The number orbitals in a & (2) & 3 d shell (C) & The number of orbitals in a subshell & (3) & 2 l + 1 (D) & n = 3, l = 2 & (4) & n \end{matrix}$

Discussion

4.	The type of hybridization of 'Pt' in [PtCl4]−2 and geometry of [PtCl4]−2are
Answer» The type of hybridization of 'Pt' in ${[P t C l_{4}]}^{- 2}$ and geometry of ${[P t C l_{4}]}^{- 2}$ are

Discussion

5.	Dative bonds is not present in
Answer» Dative bonds is not present in

Discussion

6.	Identify the β-pyranose form of D-glucose.
Answer» Identify the $β$ -pyranose form of D-glucose.

Discussion

7.	Which of the following are features of Mental Health Mission 2014? Which of the above statements is/are correct
Answer» Which of the following are features of Mental Health Mission 2014? Which of the above statements is/are correct

7.

Which of the following are features of Mental Health Mission 2014? Which of the above statements is/are correct

Answer»

Which of the following are features of Mental Health Mission 2014?

Which of the above statements is/are correct

Discussion

8.	Two liquids X and Y forms an ideal solution at 300 K, vapour pressure of the solution containing 1 mole of X and 3 moles of Y is 550 mm Hg. At the same temperature, 1 mole of Y is further added to this solution vapour pressure of the solution increases by 10 mm Hg. Vapour pressure (in mm Hg) of X and Y in their pure states will be, respectively.
Answer» Two liquids X and Y forms an ideal solution at 300 K, vapour pressure of the solution containing 1 mole of X and 3 moles of Y is 550 mm Hg. At the same temperature, 1 mole of Y is further added to this solution vapour pressure of the solution increases by 10 mm Hg. Vapour pressure (in mm Hg) of X and Y in their pure states will be, respectively.

Discussion

9.	How to explain the shape of molecules using VSEPR theory?
Answer» How to explain the shape of molecules using VSEPR theory?

Discussion

10.	Two elements X and Y contain only one electron in the outer level.Element X is reactive and loses electron easily while element Y is relatively unreactive and non corrosive. The elements X and Y respectively are (a)Cs and Cu (b)Li and Cu
Answer» Two elements X and Y contain only one electron in the outer level.Element X is reactive and loses electron easily while element Y is relatively unreactive and non corrosive. The elements X and Y respectively are (a)Cs and Cu (b)Li and Cu

10.

Two elements X and Y contain only one electron in the outer level.Element X is reactive and loses electron easily while element Y is relatively unreactive and non corrosive. The elements X and Y respectively are (a)Cs and Cu (b)Li and Cu

Answer»

Two elements X and Y contain only one electron in the outer level.Element X is reactive and loses electron easily while element Y is relatively unreactive and non corrosive. The elements X and Y respectively are

(a)Cs and Cu

(b)Li and Cu

Discussion

11.	Which of the following is not correct about Molecular Orbital theory?
Answer» Which of the following is not correct about Molecular Orbital theory?

Discussion

12.	At a particular temperature H+(aq) + OH−(aq) → H2O(l); ΔH = −57.1kJ. The approximate heat evolved when 400 mL of 0.2 H2SO4 is mixed with 600 mL of 0.1 m KOH solution will be:
Answer» At a particular temperature $H^{+} (a q) + O H^{-} (a q) \to H_{2} O (l); Δ H = - 57.1 k J$ . The approximate heat evolved when $400 m L$ of $0.2$ $H_{2} S O_{4}$ is mixed with $600 m L$ of $0.1 m$ $K O H$ solution will be:

Discussion

13.	When there is excessive oxygen why sodium forms peroxide and others forms superoxide in alkali metals why?
Answer» When there is excessive oxygen why sodium forms peroxide and others forms superoxide in alkali metals why?

Discussion

14.	Give me the formula for calculating association constant(K) given vant Hoffs factor(i) and degree of association (x).
Answer» Give me the formula for calculating association constant(K) given vant Hoffs factor(i) and degree of association (x).

Discussion

15.	The greatest integer function is:
Answer» The greatest integer function is:

Discussion

16.	The final product formed by ozonolysis of comp RCH=CR2 is
Answer» The final product formed by ozonolysis of comp $R C H = C R_{2}$ is

Discussion

17.	The bond angle around the O atom in ethanol (C2H5OH) is :
Answer» The bond angle around the O atom in ethanol $(C_{2} H_{5} O H)$ is :

Discussion

18.	2R−Cl+SiCu/300∘C−−−−−−→
Answer» $2 R - C l + S i C u / 300^{\circ} C - ----- \to$

Discussion

19.	The volume of 1.5 gm atoms of helium gas under standard conditions of temperature and pressure is
Answer» The volume of $1.5 g m$ atoms of helium gas under standard conditions of temperature and pressure is

Discussion

20.	10 dm3 of N2 gas and 10 dm3 of gas X at the same temperature contain the same number of molecules. The gas X is
Answer» $10 d m^{3}$ of $N_{2}$ gas and $10 d m^{3}$ of gas X at the same temperature contain the same number of molecules. The gas X is

Discussion

21.	Po(A) = 60 mm of Hg and Po(B) = 45mm of Hg. If 1 mol of A and 2 mol of B are mixed, the solution forms an azeotropic mixture with a minimum boiling point, then mole fraction of A in its vapour phase above the solution will be
Answer» $P_{(A)}^{o}$ = 60 mm of Hg and $P_{(B)}^{o}$ = 45mm of Hg. If 1 mol of A and 2 mol of B are mixed, the solution forms an azeotropic mixture with a minimum boiling point, then mole fraction of A in its vapour phase above the solution will be

Discussion

22.	Hydrolysis constant of a salt NaX is 10‑8 The pH of 0.01 M solution of the weak acid HX is
Answer» Hydrolysis constant of a salt $N a X$ is $10^{‑ 8}$ The pH of 0.01 M solution of the weak acid $H X$ is

Discussion

23.	Which of the following is not the main cause of low pH in acid rain?
Answer» Which of the following is not the main cause of low pH in acid rain?

Discussion

24.	CH3−CH=CH2+HBr→ -------- the product is
Answer» $C H_{3} - C H = C H_{2} + H B r \to$ -------- the product is

Discussion

25.	Small drops of liquid are spherical in shape due to
Answer» Small drops of liquid are spherical in shape due to

Discussion

26.	Which of the following is most reactive towards, Markovnikov addition?
Answer» Which of the following is most reactive towards, Markovnikov addition?

Discussion

27.	Which of the following will not give haloform reaction?
Answer» Which of the following will not give haloform reaction?

Discussion

28.	Which of the following is a primary amine?
Answer» Which of the following is a primary amine?

Discussion

29.	Number of possible alkynes with formula C5H8 is
Answer» Number of possible alkynes with formula $C_{5} H_{8}$ is

Discussion

30.	How many Coulomb's of electricity are required for the reduction of 1 mole of MnO−4 to Mn2+
Answer» How many Coulomb's of electricity are required for the reduction of 1 mole of $M n O_{4}^{-} t o M n^{2 +}$

Discussion

31.	How many chlorine atoms can you ionize in the process Cl→Cl++e−, by the energy liberated from the following process? Cl+e−→Cl− for 6 ×1023 atoms. Given electron affinity of Cl = 3.61 eV/atom, and IP of Cl= 17.422 eV/atom
Answer» How many chlorine atoms can you ionize in the process $C l \to C l^{+} + e^{-}$ , by the energy liberated from the following process? $C l + e^{-} \to C l^{-}$ for 6 $\times 10^{23}$ atoms. Given electron affinity of Cl = 3.61 eV/atom, and IP of Cl= 17.422 eV/atom

Discussion

32.	An example of a body cube is[AIIMS 1996]
Answer» An example of a body cube is [AIIMS 1996]

32.

An example of a body cube is[AIIMS 1996]

Answer»

An example of a body cube is

[AIIMS 1996]

Discussion

33.	Among KO2,AlO−2,BaO2 and NO+2 unpaired electron is present in
Answer» Among $K O_{2}$ , $A l O_{2}^{-}$ , $B a O_{2}$ and $N O_{2}^{+}$ unpaired electron is present in

Discussion

34.	The species having bond angles of 120∘ is
Answer» The species having bond angles of $120^{\circ}$ is

Discussion

35.	Which of the following has the largest ionization enthalpy?
Answer» Which of the following has the largest ionization enthalpy?

Discussion

36.	How is cast iron different from pig iron?
Answer» How is cast iron different from pig iron?

Discussion

37.	The one which is a conjugate acid-base pair
Answer» The one which is a conjugate acid-base pair

Discussion

38.	BN+H2O→A+B.A&B are as follows
Answer» $B N + H_{2} O \to A + B . A & B$ are as follows

Discussion

39.	100 mL of an H2SO4 solution that has a molarity of 1 M and density of 1.50 g/mL is mixed with 400 mL of water. If the final density of the resulting solution is 1.25 g/mL, the final molarity of the H2SO4 solution is:
Answer» $100 mL$ of an $H_{2} S O_{4}$ solution that has a molarity of $1 M$ and density of $1.50 g/mL$ is mixed with $400 mL$ of water. If the final density of the resulting solution is $1.25 g/mL$ , the final molarity of the $H_{2} S O_{4}$ solution is:

Discussion

40.	Assume 100% ionisation in the following equimolal aqueous solution : (a) 1m CaCl2 (b) 1m sucrose (c) 1m AlCl3 (d) 1m KCl Arrange them in the increasing order of osmotic pressure:
Answer» Assume 100% ionisation in the following equimolal aqueous solution : (a) 1m CaCl₂(b) 1m sucrose (c) 1m AlCl₃(d) 1m KCl Arrange them in the increasing order of osmotic pressure:

40.

Assume 100% ionisation in the following equimolal aqueous solution : (a) 1m CaCl2 (b) 1m sucrose (c) 1m AlCl3 (d) 1m KCl Arrange them in the increasing order of osmotic pressure:

Answer»

Assume 100% ionisation in the following equimolal aqueous solution :

(a) 1m CaCl₂(b) 1m sucrose (c) 1m AlCl₃(d) 1m KCl

Arrange them in the increasing order of osmotic pressure:

Discussion

41.	How much NaOH is required to neutralise 1500 cm3 of 0.1 N HCl?
Answer» How much NaOH is required to neutralise 1500 cm³ of 0.1 N HCl?

41.

How much NaOH is required to neutralise 1500 cm3 of 0.1 N HCl?

Answer»

How much NaOH is required to neutralise 1500 cm³ of 0.1 N HCl?

Discussion

42.	Structures of some common polymers are given. Which one is not correctly represented?
Answer» Structures of some common polymers are given. Which one is not correctly represented?

Discussion

43.	2p orbitals have
Answer» 2p orbitals have

Discussion

44.	Pseudo halides should have at least one Nitrogen present in them – True or False?
Answer» Pseudo halides should have at least one Nitrogen present in them – True or False?

Discussion

45.	Identify the product D in the following series of reaction
Answer» Identify the product D in the following series of reaction

45.

Identify the product D in the following series of reaction

Answer»

Identify the product D in the following series of reaction

Discussion

46.	The volume of oxygen liberated at STP from 15 mL of 20 volume H2O2 is:
Answer» The volume of oxygen liberated at STP from $15 mL$ of $20$ volume $H_{2} O_{2}$ is:

Discussion

47.	The pyknometric density of sodium chloride crystal is 2.165×103 kgm-3 while its X-rays density is 2.178×103 kgm-3. The fraction of unoccupied sites in sodium chloride crystal is [CBSE PMT 2003]
Answer» The pyknometric density of sodium chloride crystal is 2.165×10³ kgm^-3 while its X-rays density is 2.178×10³ kgm^-3. The fraction of unoccupied sites in sodium chloride crystal is [CBSE PMT 2003]

Discussion

48.	Identify the product in the following reaction.
Answer» Identify the product in the following reaction.

Discussion

49.	What is the total number of products formed on monochlorination of 1 methyl cyclohexane?
Answer» What is the total number of products formed on monochlorination of 1 methyl cyclohexane?

Discussion

50.	Which of the following option shows the correct symbol and charge of elements present in CaCl2?
Answer» Which of the following option shows the correct symbol and charge of elements present in $C a {C l}_{2}$ ?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

For which of the following reactions does the equilibrium constant depend on the units of concentration

The species Ar,K+ and Ca2+ contain the same number of electrons. In which order do their radii increase?

Match the List - I with List - II and select the correct set from the following sets given below: List - IList - II(A)The number of subshells in an(1)n2energy level(B)The number orbitals in a (2)3dshell(C)The number of orbitals in a subshell(3)2l+1(D)n=3, l=2(4)n

The type of hybridization of 'Pt' in [PtCl4]−2 and geometry of [PtCl4]−2are

Dative bonds is not present in

Identify the β-pyranose form of D-glucose.

Which of the following are features of Mental Health Mission 2014? Which of the above statements is/are correct

How to explain the shape of molecules using VSEPR theory?

Two elements X and Y contain only one electron in the outer level.Element X is reactive and loses electron easily while element Y is relatively unreactive and non corrosive. The elements X and Y respectively are (a)Cs and Cu (b)Li and Cu

Which of the following is not correct about Molecular Orbital theory?

At a particular temperature H+(aq) + OH−(aq) → H2O(l); ΔH = −57.1kJ. The approximate heat evolved when 400 mL of 0.2 H2SO4 is mixed with 600 mL of 0.1 m KOH solution will be:

When there is excessive oxygen why sodium forms peroxide and others forms superoxide in alkali metals why?

Give me the formula for calculating association constant(K) given vant Hoffs factor(i) and degree of association (x).

The greatest integer function is:

The final product formed by ozonolysis of comp RCH=CR2 is

The bond angle around the O atom in ethanol (C2H5OH) is :

2R−Cl+SiCu/300∘C−−−−−−→

The volume of 1.5 gm atoms of helium gas under standard conditions of temperature and pressure is

10 dm3 of N2 gas and 10 dm3 of gas X at the same temperature contain the same number of molecules. The gas X is

Po(A) = 60 mm of Hg and Po(B) = 45mm of Hg. If 1 mol of A and 2 mol of B are mixed, the solution forms an azeotropic mixture with a minimum boiling point, then mole fraction of A in its vapour phase above the solution will be

Hydrolysis constant of a salt NaX is 10‑8 The pH of 0.01 M solution of the weak acid HX is

Which of the following is not the main cause of low pH in acid rain?

CH3−CH=CH2+HBr→ -------- the product is

Small drops of liquid are spherical in shape due to

Which of the following is most reactive towards, Markovnikov addition?

Which of the following will not give haloform reaction?

Which of the following is a primary amine?

Number of possible alkynes with formula C5H8 is

How many Coulomb's of electricity are required for the reduction of 1 mole of MnO−4 to Mn2+

How many chlorine atoms can you ionize in the process Cl→Cl++e−, by the energy liberated from the following process? Cl+e−→Cl− for 6 ×1023 atoms. Given electron affinity of Cl = 3.61 eV/atom, and IP of Cl= 17.422 eV/atom

An example of a body cube is[AIIMS 1996]

Among KO2,AlO−2,BaO2 and NO+2 unpaired electron is present in

The species having bond angles of 120∘ is

Which of the following has the largest ionization enthalpy?

How is cast iron different from pig iron?

The one which is a conjugate acid-base pair

BN+H2O→A+B.A&amp;B are as follows

100 mL of an H2SO4 solution that has a molarity of 1 M and density of 1.50 g/mL is mixed with 400 mL of water. If the final density of the resulting solution is 1.25 g/mL, the final molarity of the H2SO4 solution is:

Assume 100% ionisation in the following equimolal aqueous solution : (a) 1m CaCl2 (b) 1m sucrose (c) 1m AlCl3 (d) 1m KCl Arrange them in the increasing order of osmotic pressure:

How much NaOH is required to neutralise 1500 cm3 of 0.1 N HCl?

Structures of some common polymers are given. Which one is not correctly represented?

2p orbitals have

Pseudo halides should have at least one Nitrogen present in them – True or False?

Identify the product D in the following series of reaction

The volume of oxygen liberated at STP from 15 mL of 20 volume H2O2 is:

The pyknometric density of sodium chloride crystal is 2.165×103 kgm-3 while its X-rays density is 2.178×103 kgm-3. The fraction of unoccupied sites in sodium chloride crystal is [CBSE PMT 2003]

Identify the product in the following reaction.

What is the total number of products formed on monochlorination of 1 methyl cyclohexane?

Which of the following option shows the correct symbol and charge of elements present in CaCl2?

BN+H2O→A+B.A&B are as follows