46295 + Interview Questions in Chemistry

1.	Predict the product.
Answer» Predict the product.

Discussion

2.	The ease of adsorption of the hydrated alkali metal ions on an ion-exchange resin follows the order:
Answer» The ease of adsorption of the hydrated alkali metal ions on an ion-exchange resin follows the order:

Discussion

3.	Cyclohexene on ozonolysis followed by reaction with zinc dust and water gives compound E. Compound E on further treatment with aqueous KOH yields compound F. The compound F is:
Answer» Cyclohexene on ozonolysis followed by reaction with zinc dust and water gives compound E. Compound E on further treatment with aqueous KOH yields compound F. The compound F is:

Discussion

4.	0.56 g of a tribasic acid is completely neutralised with 100 mL, M10 Ca(OH)2. The molar mass of the acid is
Answer» $0.56 g$ of a tribasic acid is completely neutralised with $100 m L$ , $\frac{M}{10} C a (O H)_{2} .$ The molar mass of the acid is

Discussion

5.	Which of the following reagents is used to estimate the number of hydroxyl groups in reducing sugars?
Answer» Which of the following reagents is used to estimate the number of hydroxyl groups in reducing sugars?

Discussion

6.	A radioactive substance (parent) decays to its daughter element, the age of radioactive substance (t) is related to the daughter (d)/parent (p) ratio by the equation:
Answer» A radioactive substance (parent) decays to its daughter element, the age of radioactive substance (t) is related to the daughter (d)/parent (p) ratio by the equation:

Discussion

7.	Why cu2+ more stabler than cu+ though cu+ has completely filled d orbital?
Answer» Why cu2+ more stabler than cu+ though cu+ has completely filled d orbital?

Discussion

8.	Balance the following reaction by ion electron method: KMnO4+H2SO4+HCl→K2SO4+MnSO4+Cl2+H2O
Answer» Balance the following reaction by ion electron method: $K M n O_{4} + H_{2} S O_{4} + H C l \to K_{2} S O_{4} + M n S O_{4} + C l_{2} + H_{2} O$

Discussion

9.	The electron of a hydrogen atom is in its nth Bohr orbit and has a de-Broglie wavelength of 13.4 0A? The value of n is: [h=6.63×10−34 m2kgs−1]
Answer» The electron of a hydrogen atom is in its $n$ th Bohr orbit and has a de-Broglie wavelength of 13.4 $0 A$ ? The value of $n$ is: [ $h = 6.63 \times 10^{- 34} m^{2} k g s^{- 1}$ ]

Discussion

10.	Paraffins are soluble in
Answer» Paraffins are soluble in

Discussion

11.	Q76) Which of the following is true about LADDEE which was recently in news.?
Answer» Q76) Which of the following is true about LADDEE which was recently in news.?

Discussion

12.	dx2−y2 orbital is not involved in which of the following hybridization?
Answer» $d_{x^{2} - y^{2}}$ orbital is not involved in which of the following hybridization?

Discussion

13.	2 × C2H4O = C4H8O. Why the no. Of O atoms are not doubled as C and H.
Answer» 2 × C₂H₄O = C₄H₈O. Why the no. Of O atoms are not doubled as C and H.

Discussion

14.	How would the ionization energy change when electron in hydrogen atom is replaced by a particle of mass 200 times that of the electron but having the same charge ?
Answer» How would the ionization energy change when electron in hydrogen atom is replaced by a particle of mass 200 times that of the electron but having the same charge ?

Discussion

15.	The freezing point of a 0.05 molal solution of a non electrolyte in water is (Kf = 1.86 k kg mol-1)
Answer» The freezing point of a 0.05 molal solution of a non electrolyte in water is (K_f = 1.86 k kg mol^-1)

Discussion

16.	Which has maximum number of atoms?
Answer» Which has maximum number of atoms?

Discussion

17.	In the reaction A + B → Products, if B is taken in excess, then it is an example of
Answer» In the reaction A + B → Products, if B is taken in excess, then it is an example of

Discussion

18.	What is the effect of decreasing concentration on the molar conductivity of weak electrolyte .Define briefly
Answer» What is the effect of decreasing concentration on the molar conductivity of weak electrolyte .Define briefly

Discussion

19.	How to find the hybridisation of the given organic compound?
Answer» How to find the hybridisation of the given organic compound?

Discussion

20.	KMnO4 acts as an oxidizing agent in alkaline medium. When alkaline KMnO4 is treated with KI, iodide ion is oxidized to
Answer» $K M n O_{4}$ acts as an oxidizing agent in alkaline medium. When alkaline $K M n O_{4}$ is treated with KI, iodide ion is oxidized to

Discussion

21.	Which one of the following compounds has sp2 hybridisation?
Answer» Which one of the following compounds has $s p^{2}$ hybridisation?

Discussion

22.	If an element crystallizes as a simple cube, what is the volume of an element provided its density is 1.5 g/cm3 and atomic mass of the element is 63?
Answer» If an element crystallizes as a simple cube, what is the volume of an element provided its density is 1.5 g/cm³ and atomic mass of the element is 63?

Discussion

23.	Starting with 1 mole of a compound A, it is found that the reaction is 34 completed in 1 hour. Find the rate constant (in M−1 hr−1)if the reaction is of 2nd order.
Answer» Starting with 1 mole of a compound A, it is found that the reaction is $\frac{3}{4}$ completed in 1 hour. Find the rate constant (in $M^{- 1}$ $h r^{- 1}$ )if the reaction is of $2^{n d}$ order.

Discussion

24.	The IUPAC name of the compound is: -
Answer» The IUPAC name of the compound is: -

Discussion

25.	A compound X on heating gives a colourless gas. The residue is then dissolved in water to obtain Y. Excess CO2 is bubbled through the aqueous solution of Y, then Z is formed. Z on gentle heating gives back X. Then X is:
Answer» A compound X on heating gives a colourless gas. The residue is then dissolved in water to obtain Y. Excess $C O_{2}$ is bubbled through the aqueous solution of Y, then Z is formed. Z on gentle heating gives back X. Then X is:

Discussion

26.	Ratio of Pi bond to sigma bond in Benzene is
Answer» Ratio of Pi bond to sigma bond in Benzene is

Discussion

27.	Which one has the highest osmotic pressure?
Answer» Which one has the highest osmotic pressure?

Discussion

28.	Which of the following alkali metal ions in aqueous solution is the best conductor of electricity
Answer» Which of the following alkali metal ions in aqueous solution is the best conductor of electricity

Discussion

29.	Which of the following is an ambidentate ligand ?
Answer» Which of the following is an ambidentate ligand ?

Discussion

30.	Which compound exhibits maximum dipole moment among the following?
Answer» Which compound exhibits maximum dipole moment among the following?

Discussion

31.	Which of the following electrolytes is most effective in the coagulation of gold solution [KCET 1996]
Answer» Which of the following electrolytes is most effective in the coagulation of gold solution [KCET 1996]

Discussion

32.	Cresols are
Answer» Cresols are

Discussion

33.	Wurtz reaction of methyl iodide yields an organic compound X. Which one of the following reactions also yields X [EAMCET 2003]
Answer» Wurtz reaction of methyl iodide yields an organic compound X. Which one of the following reactions also yields X [EAMCET 2003]

33.

Wurtz reaction of methyl iodide yields an organic compound X. Which one of the following reactions also yields X [EAMCET 2003]

Answer»

Wurtz reaction of methyl iodide yields an organic compound X. Which one of

the following reactions also yields X

[EAMCET 2003]

Discussion

34.	In a Bohr's model of atom when an electron jumps from n=1 to n=3, how much energy will be emitted or absorbed
Answer» In a Bohr's model of atom when an electron jumps from n=1 to n=3, how much energy will be emitted or absorbed

34.

In a Bohr's model of atom when an electron jumps from n=1 to n=3, how much energy will be emitted or absorbed

Answer»

In a Bohr's model of atom when an electron jumps from n=1 to n=3, how much energy will be emitted or absorbed

Discussion

35.	When chlorobenzene is heated with conc. NaOH solution at about 575 K under high pressure, the product is
Answer» When chlorobenzene is heated with conc. NaOH solution at about 575 K under high pressure, the product is

Discussion

36.	represents [AMU 1988]
Answer» represents [AMU 1988]

36.

represents [AMU 1988]

Answer»

represents

[AMU 1988]

Discussion

37.	The correct formula of exhausted permuititis:
Answer» The correct formula of exhausted permuititis:

Discussion

38.	List-I contains questions related to reaction sequence and List-II contains their answers. Which of the following options has the correct combination considering reaction in List-I and their product(s) in List-II?
Answer» List-I contains questions related to reaction sequence and List-II contains their answers. Which of the following options has the correct combination considering reaction in List-I and their product(s) in List-II?

Discussion

39.	Calculate the kinetic Energy in Joules of 8gm of Methane at 27∘C. (R = 8.32)
Answer» Calculate the kinetic Energy in Joules of 8gm of Methane at $27^{\circ}$ C. (R = 8.32)

Discussion

40.	The equilibrium constant of the reaction SO2(g)+12O2(g)⇋SO_3_{(g)}~is~4 \times 10^{-3}atm .The equilibrium constant of the reaction 2SO_3_(g)⇋2SO_2_{(g)}+O_2(g)\) would be :
Answer» The equilibrium constant of the reaction $S O_{2 (g)} + \frac{1}{2} O_{2} (g) ⇋$ SO_3_{(g)}~is~4 \times 10^{-3}atm .The equilibrium constant of the reaction 2SO_3_(g) $⇋$ 2SO_2_{(g)}+O_2(g)\) would be :

40.

The equilibrium constant of the reaction SO2(g)+12O2(g)⇋SO_3_{(g)}~is~4 \times 10^{-3}atm .The equilibrium constant of the reaction 2SO_3_(g)⇋2SO_2_{(g)}+O_2(g)\) would be :

Answer»

The equilibrium constant of the reaction

$S O_{2 (g)} + \frac{1}{2} O_{2} (g) ⇋$ SO_3_{(g)}~is~4 \times 10^{-3}atm .The equilibrium constant of the reaction 2SO_3_(g) $⇋$ 2SO_2_{(g)}+O_2(g)\) would be :

Discussion

41.	D- glucose, on treating with methanol in the presence of dry HCl gives methyl glucoside according to the following reaction: Mention true (T) and False (F) from the following statements: S1: The glucosides do not reduce fehling's solution. S2: The glucosides do not react with hydrogen cyanide or hydroxylamine. S3: Behaviour of glucosides as stated in S1 and S2 indicates the absence of free −CHO group. S4: The two forms of glucosides are enantiomers.
Answer» D- glucose, on treating with methanol in the presence of dry $H C l$ gives methyl glucoside according to the following reaction: Mention true (T) and False (F) from the following statements: $S_{1} :$ The glucosides do not reduce fehling's solution. $S_{2} :$ The glucosides do not react with hydrogen cyanide or hydroxylamine. $S_{3} :$ Behaviour of glucosides as stated in $S_{1}$ and $S_{2}$ indicates the absence of free $- C H O$ group. $S_{4} :$ The two forms of glucosides are enantiomers.

Discussion

42.	The condensation of two amino acids, glycine and (±) alanine yields total product X. Assume that only 1 peptide bond is formed. Find the value of X.
Answer» The condensation of two amino acids, glycine and $(\pm)$ alanine yields total product X. Assume that only 1 peptide bond is formed. Find the value of X.

Discussion

43.	Some enzymes are named after the reaction, where they are used. What name is given to the class of enzymes which catalyse the oxidation of one substrate with simultaneous reduction of another substrate?
Answer» Some enzymes are named after the reaction, where they are used. What name is given to the class of enzymes which catalyse the oxidation of one substrate with simultaneous reduction of another substrate?

Discussion

44.	Match the starting material given in Column I with the products formed by these (Column II) in the reaction with HI.
Answer» Match the starting material given in Column I with the products formed by these (Column II) in the reaction with HI.

Discussion

45.	In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices. (a) Assertion and Reason both are correct statements an Reason is correct explanation for Assertion. (b) Assertion and Reason both are correct satements but Reason is not correct explanation for Assertion. (c) Assertion is correct statement but Reason is wrong statement (d) Assertion is wrong statement but Reason is correct statement. Assertion (A) Graphite is a good conductor of electricity however diamond belongs to the category of insulators. Reason (R) Graphite is soft in nature on the other hand diamond is very hard and brittle.
Answer» In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices. (a) Assertion and Reason both are correct statements an Reason is correct explanation for Assertion. (b) Assertion and Reason both are correct satements but Reason is not correct explanation for Assertion. (c) Assertion is correct statement but Reason is wrong statement (d) Assertion is wrong statement but Reason is correct statement. Assertion (A) Graphite is a good conductor of electricity however diamond belongs to the category of insulators. Reason (R) Graphite is soft in nature on the other hand diamond is very hard and brittle.

45.

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices. (a) Assertion and Reason both are correct statements an Reason is correct explanation for Assertion. (b) Assertion and Reason both are correct satements but Reason is not correct explanation for Assertion. (c) Assertion is correct statement but Reason is wrong statement (d) Assertion is wrong statement but Reason is correct statement. Assertion (A) Graphite is a good conductor of electricity however diamond belongs to the category of insulators. Reason (R) Graphite is soft in nature on the other hand diamond is very hard and brittle.

Answer»

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices.

(a) Assertion and Reason both are correct statements an Reason is correct explanation for Assertion.

(b) Assertion and Reason both are correct satements but Reason is not correct explanation for Assertion.

(c) Assertion is correct statement but Reason is wrong statement

(d) Assertion is wrong statement but Reason is correct statement.

Assertion (A) Graphite is a good conductor of electricity however diamond belongs to the category of insulators.

Reason (R) Graphite is soft in nature on the other hand diamond is very hard and brittle.

Discussion

46.	Why is sulphide ore of copper heated in a furnance after mixing with silica?
Answer» Why is sulphide ore of copper heated in a furnance after mixing with silica?

Discussion

47.	Discuss the principle of estimation of halogens, sulphur and phosphorus present in an organic compound.
Answer» Discuss the principle of estimation of halogens, sulphur and phosphorus present in an organic compound.

Discussion

48.	One mole of H2O and one mole of CO are taken in 10 L vessel and heated to 725 K. At equilibrium 40% of water (by mass) reacts with CO according to the equation, H2O(g)+CO(g)↔H2(g)+CO2(g) Calculate the equilibrium constant for the reaction.
Answer» One mole of $H_{2} O$ and one mole of CO are taken in 10 L vessel and heated to 725 K. At equilibrium 40% of water (by mass) reacts with CO according to the equation, $H_{2} O (g) + C O (g) \leftrightarrow H_{2} (g) + C O_{2} (g)$ Calculate the equilibrium constant for the reaction.

Discussion

49.	For an ideal binary solution with PoA>PoB, which of the following relation between xA (mole fraction in liquid)
Answer» For an ideal binary solution with $P_{o A} > P_{o B},$ which of the following relation between $x_{A}$ (mole fraction in liquid)

Discussion

50.	The chlorination of alkane involves
Answer» The chlorination of alkane involves

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Predict the product.

The ease of adsorption of the hydrated alkali metal ions on an ion-exchange resin follows the order:

Cyclohexene on ozonolysis followed by reaction with zinc dust and water gives compound E. Compound E on further treatment with aqueous KOH yields compound F. The compound F is:

0.56 g of a tribasic acid is completely neutralised with 100 mL, M10 Ca(OH)2. The molar mass of the acid is

Which of the following reagents is used to estimate the number of hydroxyl groups in reducing sugars?

A radioactive substance (parent) decays to its daughter element, the age of radioactive substance (t) is related to the daughter (d)/parent (p) ratio by the equation:

Why cu2+ more stabler than cu+ though cu+ has completely filled d orbital?

Balance the following reaction by ion electron method: KMnO4+H2SO4+HCl→K2SO4+MnSO4+Cl2+H2O

The electron of a hydrogen atom is in its nth Bohr orbit and has a de-Broglie wavelength of 13.4 0A? The value of n is: [h=6.63×10−34 m2kgs−1]

Paraffins are soluble in

Q76) Which of the following is true about LADDEE which was recently in news.?

dx2−y2 orbital is not involved in which of the following hybridization?

2 × C2H4O = C4H8O. Why the no. Of O atoms are not doubled as C and H.

How would the ionization energy change when electron in hydrogen atom is replaced by a particle of mass 200 times that of the electron but having the same charge ?

The freezing point of a 0.05 molal solution of a non electrolyte in water is (Kf = 1.86 k kg mol-1)

Which has maximum number of atoms?

In the reaction A + B → Products, if B is taken in excess, then it is an example of

What is the effect of decreasing concentration on the molar conductivity of weak electrolyte .Define briefly

How to find the hybridisation of the given organic compound?

KMnO4 acts as an oxidizing agent in alkaline medium. When alkaline KMnO4 is treated with KI, iodide ion is oxidized to

Which one of the following compounds has sp2 hybridisation?

If an element crystallizes as a simple cube, what is the volume of an element provided its density is 1.5 g/cm3 and atomic mass of the element is 63?

Starting with 1 mole of a compound A, it is found that the reaction is 34 completed in 1 hour. Find the rate constant (in M−1 hr−1)if the reaction is of 2nd order.

The IUPAC name of the compound is: -

A compound X on heating gives a colourless gas. The residue is then dissolved in water to obtain Y. Excess CO2 is bubbled through the aqueous solution of Y, then Z is formed. Z on gentle heating gives back X. Then X is:

Ratio of Pi bond to sigma bond in Benzene is

Which one has the highest osmotic pressure?

Which of the following alkali metal ions in aqueous solution is the best conductor of electricity

Which of the following is an ambidentate ligand ?

Which compound exhibits maximum dipole moment among the following?

Which of the following electrolytes is most effective in the coagulation of gold solution [KCET 1996]

Cresols are

Wurtz reaction of methyl iodide yields an organic compound X. Which one of the following reactions also yields X [EAMCET 2003]

In a Bohr's model of atom when an electron jumps from n=1 to n=3, how much energy will be emitted or absorbed

When chlorobenzene is heated with conc. NaOH solution at about 575 K under high pressure, the product is

represents [AMU 1988]

The correct formula of exhausted permuititis:

List-I contains questions related to reaction sequence and List-II contains their answers. Which of the following options has the correct combination considering reaction in List-I and their product(s) in List-II?

Calculate the kinetic Energy in Joules of 8gm of Methane at 27∘C. (R = 8.32)

The equilibrium constant of the reaction SO2(g)+12O2(g)⇋SO_3_{(g)}~is~4 \times 10^{-3}atm .The equilibrium constant of the reaction 2SO_3_(g)⇋2SO_2_{(g)}+O_2(g)\) would be :

The condensation of two amino acids, glycine and (±) alanine yields total product X. Assume that only 1 peptide bond is formed. Find the value of X.

Some enzymes are named after the reaction, where they are used. What name is given to the class of enzymes which catalyse the oxidation of one substrate with simultaneous reduction of another substrate?

Match the starting material given in Column I with the products formed by these (Column II) in the reaction with HI.

Why is sulphide ore of copper heated in a furnance after mixing with silica?

Discuss the principle of estimation of halogens, sulphur and phosphorus present in an organic compound.

One mole of H2O and one mole of CO are taken in 10 L vessel and heated to 725 K. At equilibrium 40% of water (by mass) reacts with CO according to the equation, H2O(g)+CO(g)↔H2(g)+CO2(g) Calculate the equilibrium constant for the reaction.

For an ideal binary solution with PoA&gt;PoB, which of the following relation between xA (mole fraction in liquid)

The chlorination of alkane involves

For an ideal binary solution with PoA>PoB, which of the following relation between xA (mole fraction in liquid)