46295 + Interview Questions in Chemistry

1.	Glucose and cane sugar can't be distinguished by
Answer» Glucose and cane sugar can't be distinguished by

Discussion

2.	The vapour of a substance behaves as a gas
Answer» The vapour of a substance behaves as a gas

2.

The vapour of a substance behaves as a gas

Answer»

The vapour of a substance behaves as a gas

Discussion

3.	The reaction of D-glucose with ammoniacal AgNO3 produces:
Answer» The reaction of D-glucose with ammoniacal $A g N O_{3}$ produces:

Discussion

4.	Which of the following is a natural polymer
Answer» Which of the following is a natural polymer

Discussion

5.	In adiabatic expansion
Answer» In adiabatic expansion

Discussion

6.	An atomic orbital has n = 3. What are the possible values of l and ml ? List the quantum numbers (ml and l) of electrons for 3d orbital. Which of the following orbitals are possible? 1p, 2s, 2p and 3f
Answer» An atomic orbital has n = 3. What are the possible values of l and $m_{l}$ ? List the quantum numbers ( $m_{l}$ and l) of electrons for 3d orbital. Which of the following orbitals are possible? 1p, 2s, 2p and 3f

6.

An atomic orbital has n = 3. What are the possible values of l and ml ? List the quantum numbers (ml and l) of electrons for 3d orbital. Which of the following orbitals are possible? 1p, 2s, 2p and 3f

Answer»

An atomic orbital has n = 3. What are the possible values of l and $m_{l}$ ?

List the quantum numbers ( $m_{l}$ and l) of electrons for 3d orbital.

Which of the following orbitals are possible? 1p, 2s, 2p and 3f

Discussion

7.	Choose the correct statements from the following . ? (a) Beryllium is not readily attacked by acids because of the presence of an oxide film on the surface of the metal (b) beryllium stable is readily soluble in water as the greater hydration enthalpy of Be2+ very the lattice enthalpy factor (c) Beryllium exhibits coordination number more than four (d) Beryllium oxide is purely acidic in nature
Answer» Choose the correct statements from the following . ? (a) Beryllium is not readily attacked by acids because of the presence of an oxide film on the surface of the metal (b) beryllium stable is readily soluble in water as the greater hydration enthalpy of $B e 2 +$ very the lattice enthalpy factor (c) Beryllium exhibits coordination number more than four (d) Beryllium oxide is purely acidic in nature

Discussion

8.	If ethanol dissolves in water then which of the following would happen?
Answer» If ethanol dissolves in water then which of the following would happen?

Discussion

9.	Which will give silver mirror test with Tollensreagent :
Answer» Which will give silver mirror test with Tollensreagent :

Discussion

10.	Which of the following represents the example of homopolymer?
Answer» Which of the following represents the example of homopolymer?

Discussion

11.	Total number of angular node in 3d orbital is
Answer» Total number of angular node in 3d orbital is

Discussion

12.	In the following question two Statement-I (Assertion) and Statement-2 (Reason) are provided. each question has 4 choices (a), (b), (c) and (d) for its answer, out of which Only One is correct. Mark your responses from the following options: Statement-1: 2-Pentyne on hydrogenation in presence of Lindlar catalyst gives cis-1-pentene. Statement-2: Addition of hydrogen is a stereospecific reaction.
Answer» In the following question two Statement-I (Assertion) and Statement-2 (Reason) are provided. each question has 4 choices (a), (b), (c) and (d) for its answer, out of which Only One is correct. Mark your responses from the following options: Statement-1: 2-Pentyne on hydrogenation in presence of Lindlar catalyst gives cis-1-pentene. Statement-2: Addition of hydrogen is a stereospecific reaction.

Discussion

13.	How many C-atoms are present in 2.6 micromoles of C6H12O6?
Answer» How many C-atoms are present in 2.6 micromoles of $C_{6} H_{12} O_{6}$ ?

Discussion

14.	1 mole of H2SO4 is mixed with excess of NaOH in a dilute solution. The enthalpy change is nearly equal to
Answer» 1 mole of $H_{2} S O_{4}$ is mixed with excess of NaOH in a dilute solution. The enthalpy change is nearly equal to

Discussion

15.	Calculate the n factor of Fe2O3 in the reaction Fe2O3 ----: Fe + O2
Answer» Calculate the n factor of Fe2O3 in the reaction Fe2O3 ----: Fe + O2

15.

Calculate the n factor of Fe2O3 in the reaction Fe2O3 ----: Fe + O2

Answer»

Calculate the n factor of Fe2O3 in the reaction

Fe2O3 ----: Fe + O2

Discussion

16.	Which of the following forms compounds with high covalent character?
Answer» Which of the following forms compounds with high covalent character?

Discussion

17.	The salt used for performing ‘bead’ test in qualitative inorganic analysis is :
Answer» The salt used for performing ‘bead’ test in qualitative inorganic analysis is :

Discussion

18.	Illustrate the law of definite proportions from the following data:-1)0.32g of sulphur on burning in air produced 224ml of SO2 at N.T.P
Answer» Illustrate the law of definite proportions from the following data:-1)0.32g of sulphur on burning in air produced 224ml of SO2 at N.T.P

Discussion

19.	H3C−CH=CH2+Br2(1 equiv.)CCl4−−−→Xalc. KOH−−−−−−→ΔYNaNH2−−−−−→ΔZ Z is:
Answer» $H_{3} C - C H = C H_{2} + B r_{2} (1 equiv.) C C l_{4} - -- \to X a l c . K O H - ----- \to Δ Y N a N H_{2} - ---- \to Δ Z$ Z is:

Discussion

20.	Q76. Which of the following below statement(s) related to types of farming is/are correct? 1. Growing of vegetables around the urban centres to meet the daily demand of the people is known as truck farming 2. Dry Farming is a method of farming adopted in certain regions of inadequate rainfall and devoid of irrigation facilities by conserving moisture in the soil and by raising drought-enduring crops. 3. Sedentary agriculture is a method of farming in which a patch of ground is cultivated for a period of few years until the soil is partly exhausted or overrun by weeds, and after which the land is left to natural vegetation while cultivation is carried on elsewhere.
Answer» Q76. Which of the following below statement(s) related to types of farming is/are correct? 1. Growing of vegetables around the urban centres to meet the daily demand of the people is known as truck farming 2. Dry Farming is a method of farming adopted in certain regions of inadequate rainfall and devoid of irrigation facilities by conserving moisture in the soil and by raising drought-enduring crops. 3. Sedentary agriculture is a method of farming in which a patch of ground is cultivated for a period of few years until the soil is partly exhausted or overrun by weeds, and after which the land is left to natural vegetation while cultivation is carried on elsewhere.

20.

Q76. Which of the following below statement(s) related to types of farming is/are correct? 1. Growing of vegetables around the urban centres to meet the daily demand of the people is known as truck farming 2. Dry Farming is a method of farming adopted in certain regions of inadequate rainfall and devoid of irrigation facilities by conserving moisture in the soil and by raising drought-enduring crops. 3. Sedentary agriculture is a method of farming in which a patch of ground is cultivated for a period of few years until the soil is partly exhausted or overrun by weeds, and after which the land is left to natural vegetation while cultivation is carried on elsewhere.

Answer»

Q76. Which of the following below statement(s) related to types of farming is/are correct?

1. Growing of vegetables around the urban centres to meet the daily demand of the people is known as truck farming

2. Dry Farming is a method of farming adopted in certain regions of inadequate rainfall and devoid of irrigation facilities by conserving moisture in the soil and by raising drought-enduring crops.

3. Sedentary agriculture is a method of farming in which a patch of ground is cultivated for a period of few years until the soil is partly exhausted or overrun by weeds, and after which the land is left to natural vegetation while cultivation is carried on elsewhere.

Discussion

21.	Cresol and Phenol are examples for ___.
Answer» Cresol and Phenol are examples for ___.

Discussion

22.	Which of the following methods can produce H2O2?
Answer» Which of the following methods can produce $H_{2} O_{2}$ ?

Discussion

23.	Br−CH=CH−CH2−CH=CH−CH2−CH=C=C=CH−CH=C(CH3)2 Total number of geometrical isomers for the given compound is:
Answer» $B r - C H = C H - C H_{2} - C H = C H - C H_{2} - C H = C = C = C H - C H = C (C H_{3})_{2}$ Total number of geometrical isomers for the given compound is:

Discussion

24.	Why benzoic acid is more acidic than formic acid or its homologous derivative?
Answer» Why benzoic acid is more acidic than formic acid or its homologous derivative?

Discussion

25.	identify the product A and B in the equation 2Na+2H2O=A+B
Answer» identify the product A and B in the equation 2Na+2H₂O=A+B

Discussion

26.	Which of the following exists as covalent crystals in the solid state?
Answer» Which of the following exists as covalent crystals in the solid state?

Discussion

27.	Why does intramolecular hydrogen bonding decrease the boiling point of the compound?
Answer» Why does intramolecular hydrogen bonding decrease the boiling point of the compound?

Discussion

28.	In the system A(g) ⇋ 2B(g) + 3C(g)if the concentration of 'C' at equilibrium is increased by a factor of 2, it will cause the equilibrium concentration of B to change to:
Answer» In the system $A_{(g)}$ $⇋$ 2 $B_{(g)}$ + 3 $C_{(g)}$ if the concentration of 'C' at equilibrium is increased by a factor of 2, it will cause the equilibrium concentration of B to change to:

Discussion

29.	If 2 quantities have the same unit then they must have the same dimension. How?
Answer» If 2 quantities have the same unit then they must have the same dimension. How?

Discussion

30.	Calculate the entropy change when 2 mol of an ideal gas expands isothermally and reversibly from an initial volume of 10 dm3 to 100 dm3 at 300 K.
Answer» Calculate the entropy change when 2 mol of an ideal gas expands isothermally and reversibly from an initial volume of 10 $d m^{3}$ to 100 $d m^{3}$ at 300 K.

Discussion

31.	Convert the following condensed structure into Bond-line structure (CH3)2CHCH2CH3
Answer» Convert the following condensed structure into Bond-line structure $(C H_{3})_{2} C H C H_{2} C H_{3}$

Discussion

32.	Calculate the molarity and molality of 20% aquaous ethanol solution by volume ( density of solution = 0.960 gm pr cm cube ) .Assume the solution to be ideal??
Answer» Calculate the molarity and molality of 20% aquaous ethanol solution by volume ( density of solution = 0.960 gm pr cm cube ) .Assume the solution to be ideal??

Discussion

33.	The Arsenous sulphide sol has negative charge. The maximum power of precipitating it is of
Answer» The Arsenous sulphide sol has negative charge. The maximum power of precipitating it is of

Discussion

34.	Why boiling point is more for H2O but not for HF?
Answer» Why boiling point is more for H2O but not for HF?

Discussion

35.	Complete the Reaction- CH3-CH=CH2 ____Dil. H+______>
Answer» Complete the Reaction- CH₃-CH=CH₂ ^{____Dil. H+______}>

Discussion

36.	Which of the following compounds undergo nucleophilic substitution reactions most easily?
Answer» Which of the following compounds undergo nucleophilic substitution reactions most easily?

Discussion

37.	Two spin in a box represents which type of pair? Bond pair or lone pair
Answer» Two spin in a box represents which type of pair? Bond pair or lone pair

Discussion

38.	Important organic name reaction
Answer» Important organic name reaction

Discussion

39.	What is f centre give some example also
Answer» What is f centre give some example also

Discussion

40.	If uncertainities in the measurement of position and momentum of an electron are equal, then uncertainity in the measurement of its velocity is approximately:
Answer» If uncertainities in the measurement of position and momentum of an electron are equal, then uncertainity in the measurement of its velocity is approximately:

Discussion

41.	Bond energies in NO, NO+ and NO− are such as
Answer» Bond energies in $N O, N O^{+}$ and $N O^{-}$ are such as

Discussion

42.	Which of the following shows the correct order of basic nature of oxides?
Answer» Which of the following shows the correct order of basic nature of oxides?

Discussion

43.	The correct order of thermal stability of alkali metal hydrides
Answer» The correct order of thermal stability of alkali metal hydrides

Discussion

44.	The process in which colloid is placed inside a bag of semi permeable membrane like cellophane or parchment paper which permits ions and not colloids to pass through, is called as:
Answer» The process in which colloid is placed inside a bag of semi permeable membrane like cellophane or parchment paper which permits ions and not colloids to pass through, is called as:

Discussion

45.	The relation between volume V pressure P and absolute temperature T of an ideal gas is PV = xT where x is a constant. The value of x depends upon
Answer» The relation between volume $V$ pressure $P$ and absolute temperature $T$ of an ideal gas is $P V = x T$ where x is a constant. The value of x depends upon

Discussion

46.	The equivalent mass of a certain bivalent metal is 25 g. The gram molar mass of its anhydrous chloride is:
Answer» The equivalent mass of a certain bivalent metal is $25 g$ . The gram molar mass of its anhydrous chloride is:

Discussion

47.	10 gm of impure sodium carbonate is dissolved in water and the solution is made up to 250 ml. To 50 ml of this made up solution, 50 ml of 0.1N, HCl is added and the mixture after shaking well required 10 ml of 0.16N, NaOH solution for complete titration. Calculate the % purity of the sample.
Answer» 10 gm of impure sodium carbonate is dissolved in water and the solution is made up to 250 ml. To 50 ml of this made up solution, 50 ml of 0.1N, HCl is added and the mixture after shaking well required 10 ml of 0.16N, NaOH solution for complete titration. Calculate the % purity of the sample.

Discussion

48.	[Ti(H2O)6]3− absorbs energy equal to wavelength 498 nm. On this basis crystal field splitting energy comes out to be a×10−3J. What is the value of a?___
Answer» $[T i (H_{2} O)_{6}]^{3 -}$ absorbs energy equal to wavelength 498 nm. On this basis crystal field splitting energy comes out to be $a \times 10^{- 3} J$ . What is the value of a?___

Discussion

49.	Which gas is liberated when zinc reacts with dilute nitric acid?
Answer» Which gas is liberated when zinc reacts with dilute nitric acid?

Discussion

50.	In a first order reaction, the concentration of the reactant decreases from 800 mol dm−3 to 50 mol dm−3 in 2×104s. The rate constant of the reaction in (s−1) is (IIT-JEE, 2003)
Answer» In a first order reaction, the concentration of the reactant decreases from 800 mol $d m^{- 3}$ to 50 mol $d m^{- 3}$ in $2 \times 10^{4} s .$ The rate constant of the reaction in $(s^{- 1})$ is (IIT-JEE, 2003)

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Glucose and cane sugar can't be distinguished by

The vapour of a substance behaves as a gas

The reaction of D-glucose with ammoniacal AgNO3 produces:

Which of the following is a natural polymer

In adiabatic expansion

An atomic orbital has n = 3. What are the possible values of l and ml ? List the quantum numbers (ml and l) of electrons for 3d orbital. Which of the following orbitals are possible? 1p, 2s, 2p and 3f

If ethanol dissolves in water then which of the following would happen?

Which will give silver mirror test with Tollensreagent :

Which of the following represents the example of homopolymer?

Total number of angular node in 3d orbital is

How many C-atoms are present in 2.6 micromoles of C6H12O6?

1 mole of H2SO4 is mixed with excess of NaOH in a dilute solution. The enthalpy change is nearly equal to

Calculate the n factor of Fe2O3 in the reaction Fe2O3 ----: Fe + O2

Which of the following forms compounds with high covalent character?

The salt used for performing ‘bead’ test in qualitative inorganic analysis is :

Illustrate the law of definite proportions from the following data:-1)0.32g of sulphur on burning in air produced 224ml of SO2 at N.T.P

H3C−CH=CH2+Br2(1 equiv.)CCl4−−−→Xalc. KOH−−−−−−→ΔYNaNH2−−−−−→ΔZ Z is:

Cresol and Phenol are examples for ___.

Which of the following methods can produce H2O2?

Br−CH=CH−CH2−CH=CH−CH2−CH=C=C=CH−CH=C(CH3)2 Total number of geometrical isomers for the given compound is:

Why benzoic acid is more acidic than formic acid or its homologous derivative?

identify the product A and B in the equation 2Na+2H2O=A+B

Which of the following exists as covalent crystals in the solid state?

Why does intramolecular hydrogen bonding decrease the boiling point of the compound?

In the system A(g) ⇋ 2B(g) + 3C(g)if the concentration of 'C' at equilibrium is increased by a factor of 2, it will cause the equilibrium concentration of B to change to:

If 2 quantities have the same unit then they must have the same dimension. How?

Calculate the entropy change when 2 mol of an ideal gas expands isothermally and reversibly from an initial volume of 10 dm3 to 100 dm3 at 300 K.

Convert the following condensed structure into Bond-line structure (CH3)2CHCH2CH3

Calculate the molarity and molality of 20% aquaous ethanol solution by volume ( density of solution = 0.960 gm pr cm cube ) .Assume the solution to be ideal??

The Arsenous sulphide sol has negative charge. The maximum power of precipitating it is of

Why boiling point is more for H2O but not for HF?

Complete the Reaction- CH3-CH=CH2 ____Dil. H+______>

Which of the following compounds undergo nucleophilic substitution reactions most easily?

Two spin in a box represents which type of pair? Bond pair or lone pair

Important organic name reaction

What is f centre give some example also

If uncertainities in the measurement of position and momentum of an electron are equal, then uncertainity in the measurement of its velocity is approximately:

Bond energies in NO, NO+ and NO− are such as

Which of the following shows the correct order of basic nature of oxides?

The correct order of thermal stability of alkali metal hydrides

The process in which colloid is placed inside a bag of semi permeable membrane like cellophane or parchment paper which permits ions and not colloids to pass through, is called as:

The relation between volume V pressure P and absolute temperature T of an ideal gas is PV = xT where x is a constant. The value of x depends upon

The equivalent mass of a certain bivalent metal is 25 g. The gram molar mass of its anhydrous chloride is:

10 gm of impure sodium carbonate is dissolved in water and the solution is made up to 250 ml. To 50 ml of this made up solution, 50 ml of 0.1N, HCl is added and the mixture after shaking well required 10 ml of 0.16N, NaOH solution for complete titration. Calculate the % purity of the sample.

[Ti(H2O)6]3− absorbs energy equal to wavelength 498 nm. On this basis crystal field splitting energy comes out to be a×10−3J. What is the value of a?___

Which gas is liberated when zinc reacts with dilute nitric acid?

In a first order reaction, the concentration of the reactant decreases from 800 mol dm−3 to 50 mol dm−3 in 2×104s. The rate constant of the reaction in (s−1) is (IIT-JEE, 2003)

Complete the Reaction- CH3-CH=CH2 Dil. H+__>